[ 852.798854] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=1, fb_changed=1 [ 852.798860] [drm:intel_modeset_stage_output_state] [CONNECTOR:24:DP-1] to [CRTC:5] [ 852.798868] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 852.798876] [drm:connected_sink_compute_bpp] [CONNECTOR:24:DP-1] checking for sink bpp constrains [ 852.798884] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 0a pixel clock 74176KHz [ 852.798891] [drm:intel_dp_compute_config] DP link bw 0a lane count 1 clock 270000 bpp 24 [ 852.798895] [drm:intel_dp_compute_config] DP link bw required 178023 available 216000 [ 852.798903] [drm:ironlake_check_fdi_lanes] checking fdi config on pipe A, lanes 1 [ 852.798908] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 [ 852.798914] [drm:intel_dump_pipe_config] [CRTC:5][modeset] config for pipe A [ 852.798917] [drm:intel_dump_pipe_config] cpu_transcoder: A [ 852.798922] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 852.798929] [drm:intel_dump_pipe_config] fdi/pch: 1, lanes: 1, gmch_m: 3456852, gmch_n: 4194304, link_m: 144035, link_n: 524288, tu: 64 [ 852.798937] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 3456852, gmch_n: 4194304, link_m: 144035, link_n: 524288, tu: 64 [ 852.798941] [drm:intel_dump_pipe_config] requested mode: [ 852.798949] [drm:drm_mode_debug_printmodeline] Modeline 0:"1280x720" 60 74176 1280 1390 1430 1650 720 725 730 750 0x40 0x5 [ 852.798994] [drm:intel_dump_pipe_config] adjusted mode: [ 852.799001] [drm:drm_mode_debug_printmodeline] Modeline 0:"1280x720" 60 74176 1280 1390 1430 1650 720 725 730 750 0x40 0x5 [ 852.799007] [drm:intel_dump_crtc_timings] crtc timings: 74176 1280 1390 1430 1650 720 725 730 750, type: 0x40 flags: 0x5 [ 852.799010] [drm:intel_dump_pipe_config] port clock: 270000 [ 852.799013] [drm:intel_dump_pipe_config] pipe src size: 1280x720 [ 852.799017] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 852.799021] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 852.799024] [drm:intel_dump_pipe_config] ips: 0 [ 852.799027] [drm:intel_dump_pipe_config] double wide: 0 [ 852.810311] [drm:intel_dp_link_down] [ 852.913222] ------------[ cut here ]------------ [ 852.913269] WARNING: CPU: 2 PID: 4013 at drivers/gpu/drm/i915/intel_display.c:944 intel_wait_for_pipe_off+0x12e/0x135 [i915]() [ 852.913273] pipe_off wait timed out [ 852.913275] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic iTCO_wdt iTCO_vendor_support ppdev dcdbas snd_hda_intel snd_hda_controller pcspkr snd_hda_codec i2c_i801 snd_hwdep snd_pcm lpc_ich mfd_core snd_timer firewire_ohci snd firewire_core crc_itu_t soundcore wmi battery tpm_tis tpm parport_pc parport ac acpi_cpufreq joydev i915 video button drm_kms_helper drm [ 852.913318] CPU: 2 PID: 4013 Comm: testdisplay Tainted: G W 3.15.0-rc3_drm-intel-nightly_2be456_20140514+ #2598 [ 852.913321] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05 08/10/2010 [ 852.913324] 00000000 c16a5021 f4993ccc c102cf1b f8569f80 c2858000 00070008 00086d59 [ 852.913332] f6175db4 c102cf96 00000009 f4993ccc f85acdb9 f4993ce4 f8569f80 f85ab5ab [ 852.913340] 000003b0 f85acdb9 c2858000 f6175db8 f5bfc000 f856f6da f4993d00 f804c166 [ 852.913348] Call Trace: [ 852.913357] [] ? dump_stack+0x3e/0x4e [ 852.913366] [] ? warn_slowpath_common+0x61/0x74 [ 852.913397] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 852.913404] [] ? warn_slowpath_fmt+0x29/0x2d [ 852.913435] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 852.913467] [] ? ironlake_crtc_disable+0x85/0x713 [i915] [ 852.913484] [] ? drm_ut_debug_printk+0x2c/0x30 [drm] [ 852.913516] [] ? intel_dump_pipe_config+0x29a/0x29f [i915] [ 852.913547] [] ? __intel_set_mode+0xbe7/0xffd [i915] [ 852.913553] [] ? console_unlock+0x309/0x33d [ 852.913558] [] ? wake_up_klogd+0x25/0x26 [ 852.913589] [] ? intel_set_mode+0x11/0x25 [i915] [ 852.913620] [] ? intel_crtc_set_config+0x646/0x8f1 [i915] [ 852.913627] [] ? printk+0x16/0x1a [ 852.913644] [] ? drm_mode_set_config_internal+0x39/0x8a [drm] [ 852.913660] [] ? drm_mode_setcrtc+0x37e/0x408 [drm] [ 852.913676] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 852.913689] [] ? drm_ioctl+0x22e/0x35f [drm] [ 852.913705] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 852.913719] [] ? drm_copy_field+0x47/0x47 [drm] [ 852.913727] [] ? do_vfs_ioctl+0x3fa/0x444 [ 852.913732] [] ? __schedule+0x597/0x6bb [ 852.913738] [] ? vfs_write+0xf8/0x157 [ 852.913744] [] ? SyS_ioctl+0x42/0x6d [ 852.913750] [] ? sysenter_do_call+0x12/0x22 [ 852.913754] ---[ end trace 705caa71d149a4f0 ]--- [ 852.917231] [drm:intel_disable_shared_dpll] disable PCH DPLL A (active 1, on? 1) for crtc 5 [ 852.917240] [drm:intel_disable_shared_dpll] disabling PCH DPLL A [ 852.917661] [drm:intel_update_fbc] no output, disabling [ 852.917727] [drm:intel_get_shared_dpll] CRTC:5 dropping existing PCH DPLL A [ 852.917731] [drm:intel_get_shared_dpll] CRTC:5 using pre-allocated PCH DPLL A [ 852.917734] [drm:intel_get_shared_dpll] using PCH DPLL A for pipe A [ 852.917737] [drm:intel_get_shared_dpll] setting up PCH DPLL A [ 852.917759] [drm:ironlake_update_primary_plane] Writing base 097F9000 00000000 0 0 5120 [ 852.917768] [drm:intel_crtc_mode_set] [ENCODER:23:TMDS-23] set [MODE:0:1280x720] [ 852.917773] [drm:intel_dp_mode_set] Enabling DP audio on pipe A [ 852.917778] [drm:intel_write_eld] ELD on [CONNECTOR:24:DP-1], [ENCODER:23:TMDS-23] [ 852.917782] [drm:ironlake_write_eld] ELD on pipe A [ 852.917786] [drm:ironlake_write_eld] Audio directed to unknown port [ 852.917789] [drm:ironlake_write_eld] ELD: DisplayPort detected [ 852.918672] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x100 [ 852.918676] [drm:ironlake_fdi_link_train] FDI train 1 done. [ 852.918834] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x200 [ 852.918837] [drm:ironlake_fdi_link_train] FDI train 2 done. [ 852.918840] [drm:ironlake_fdi_link_train] FDI train done [ 852.918844] [drm:ironlake_enable_shared_dpll] enable PCH DPLL A (active 0, on? 0)for crtc 5 [ 852.918848] [drm:ironlake_enable_shared_dpll] enabling PCH DPLL A [ 852.920425] [drm:ibx_irq_handler] *ERROR* PCH transcoder A FIFO underrun [ 852.920738] [drm:intel_dp_set_signal_levels] Using signal levels 00000000 [ 852.921205] [drm:intel_dp_start_link_train] clock recovery OK [ 852.921960] [drm:intel_dp_complete_link_train] Channel EQ done. DP Training successful [ 852.939237] [drm:intel_update_fbc] disabled per chip default [ 852.957256] [drm:intel_connector_check_state] [CONNECTOR:24:DP-1] [ 852.957270] [drm:check_encoder_state] [ENCODER:11:DAC-11] [ 852.957276] [drm:check_encoder_state] [ENCODER:12:TMDS-12] [ 852.957281] [drm:check_encoder_state] [ENCODER:21:TMDS-21] [ 852.957286] [drm:check_encoder_state] [ENCODER:23:TMDS-23] [ 852.957291] [drm:check_encoder_state] [ENCODER:25:TMDS-25] [ 852.957296] [drm:check_encoder_state] [ENCODER:27:TMDS-27] [ 852.957301] [drm:check_encoder_state] [ENCODER:29:TMDS-29] [ 852.957306] [drm:check_encoder_state] [ENCODER:31:TMDS-31] [ 852.957311] [drm:check_crtc_state] [CRTC:5] [ 852.957340] [drm:check_crtc_state] [CRTC:8] [ 852.957344] [drm:check_shared_dpll_state] PCH DPLL A [ 852.957351] [drm:check_shared_dpll_state] PCH DPLL B [ 857.960603] [drm:drm_mode_addfb2] [FB:57] [ 858.083000] [drm:drm_mode_setcrtc] [CRTC:5] [ 858.083013] [drm:drm_mode_setcrtc] [CONNECTOR:24:DP-1] [ 858.083018] [drm:intel_crtc_set_config] [CRTC:5] [FB:57] #connectors=1 (x y) (0 0) [ 858.083025] [drm:intel_set_config_compute_mode_changes] modes are different, full mode set [ 858.083032] [drm:drm_mode_debug_printmodeline] Modeline 59:"1280x720" 60 74176 1280 1390 1430 1650 720 725 730 750 0x40 0x5 [ 858.083038] [drm:drm_mode_debug_printmodeline] Modeline 59:"1280x720" 50 74250 1280 1720 1760 1980 720 725 730 750 0x40 0x5 [ 858.083043] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=1, fb_changed=1 [ 858.083048] [drm:intel_modeset_stage_output_state] [CONNECTOR:24:DP-1] to [CRTC:5] [ 858.083054] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 858.083059] [drm:connected_sink_compute_bpp] [CONNECTOR:24:DP-1] checking for sink bpp constrains [ 858.083065] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 0a pixel clock 74250KHz [ 858.083073] [drm:intel_dp_compute_config] DP link bw 0a lane count 1 clock 270000 bpp 24 [ 858.083076] [drm:intel_dp_compute_config] DP link bw required 178200 available 216000 [ 858.083082] [drm:ironlake_check_fdi_lanes] checking fdi config on pipe A, lanes 1 [ 858.083086] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 [ 858.083090] [drm:intel_dump_pipe_config] [CRTC:5][modeset] config for pipe A [ 858.083093] [drm:intel_dump_pipe_config] cpu_transcoder: A [ 858.083096] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 858.083101] [drm:intel_dump_pipe_config] fdi/pch: 1, lanes: 1, gmch_m: 3460300, gmch_n: 4194304, link_m: 144179, link_n: 524288, tu: 64 [ 858.083106] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 3460300, gmch_n: 4194304, link_m: 144179, link_n: 524288, tu: 64 [ 858.083109] [drm:intel_dump_pipe_config] requested mode: [ 858.083115] [drm:drm_mode_debug_printmodeline] Modeline 0:"1280x720" 50 74250 1280 1720 1760 1980 720 725 730 750 0x40 0x5 [ 858.083118] [drm:intel_dump_pipe_config] adjusted mode: [ 858.083124] [drm:drm_mode_debug_printmodeline] Modeline 0:"1280x720" 50 74250 1280 1720 1760 1980 720 725 730 750 0x40 0x5 [ 858.083129] [drm:intel_dump_crtc_timings] crtc timings: 74250 1280 1720 1760 1980 720 725 730 750, type: 0x40 flags: 0x5 [ 858.083132] [drm:intel_dump_pipe_config] port clock: 270000 [ 858.083136] [drm:intel_dump_pipe_config] pipe src size: 1280x720 [ 858.083139] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 858.083143] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 858.083146] [drm:intel_dump_pipe_config] ips: 0 [ 858.083149] [drm:intel_dump_pipe_config] double wide: 0 [ 858.098621] [drm:intel_dp_link_down] [ 858.201477] ------------[ cut here ]------------ [ 858.201518] WARNING: CPU: 2 PID: 4013 at drivers/gpu/drm/i915/intel_display.c:944 intel_wait_for_pipe_off+0x12e/0x135 [i915]() [ 858.201521] pipe_off wait timed out [ 858.201523] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic iTCO_wdt iTCO_vendor_support ppdev dcdbas snd_hda_intel snd_hda_controller pcspkr snd_hda_codec i2c_i801 snd_hwdep snd_pcm lpc_ich mfd_core snd_timer firewire_ohci snd firewire_core crc_itu_t soundcore wmi battery tpm_tis tpm parport_pc parport ac acpi_cpufreq joydev i915 video button drm_kms_helper drm [ 858.201558] CPU: 2 PID: 4013 Comm: testdisplay Tainted: G W 3.15.0-rc3_drm-intel-nightly_2be456_20140514+ #2598 [ 858.201561] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05 08/10/2010 [ 858.201564] 00000000 c16a5021 f4993ccc c102cf1b f8569f80 c2858000 00070008 000881fe [ 858.201570] f6175db4 c102cf96 00000009 f4993ccc f85acdb9 f4993ce4 f8569f80 f85ab5ab [ 858.201577] 000003b0 f85acdb9 c2858000 f6175db8 f5bfc000 f856f6da f4993d00 f804c166 [ 858.201583] Call Trace: [ 858.201591] [] ? dump_stack+0x3e/0x4e [ 858.201599] [] ? warn_slowpath_common+0x61/0x74 [ 858.201625] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 858.201631] [] ? warn_slowpath_fmt+0x29/0x2d [ 858.201657] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 858.201683] [] ? ironlake_crtc_disable+0x85/0x713 [i915] [ 858.201697] [] ? drm_ut_debug_printk+0x2c/0x30 [drm] [ 858.201723] [] ? intel_dump_pipe_config+0x29a/0x29f [i915] [ 858.201748] [] ? __intel_set_mode+0xbe7/0xffd [i915] [ 858.201753] [] ? console_unlock+0x309/0x33d [ 858.201757] [] ? wake_up_klogd+0x25/0x26 [ 858.201783] [] ? intel_set_mode+0x11/0x25 [i915] [ 858.201808] [] ? intel_crtc_set_config+0x646/0x8f1 [i915] [ 858.201813] [] ? printk+0x16/0x1a [ 858.201827] [] ? drm_mode_set_config_internal+0x39/0x8a [drm] [ 858.201841] [] ? drm_mode_setcrtc+0x37e/0x408 [drm] [ 858.201854] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 858.201864] [] ? drm_ioctl+0x22e/0x35f [drm] [ 858.201877] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 858.201888] [] ? drm_copy_field+0x47/0x47 [drm] [ 858.201894] [] ? do_vfs_ioctl+0x3fa/0x444 [ 858.201898] [] ? __schedule+0x597/0x6bb [ 858.201903] [] ? vfs_write+0xf8/0x157 [ 858.201908] [] ? SyS_ioctl+0x42/0x6d [ 858.201912] [] ? sysenter_do_call+0x12/0x22 [ 858.201916] ---[ end trace 705caa71d149a4f1 ]--- [ 858.205491] [drm:intel_disable_shared_dpll] disable PCH DPLL A (active 1, on? 1) for crtc 5 [ 858.205501] [drm:intel_disable_shared_dpll] disabling PCH DPLL A [ 858.205922] [drm:intel_update_fbc] no output, disabling [ 858.205987] [drm:intel_get_shared_dpll] CRTC:5 dropping existing PCH DPLL A [ 858.205991] [drm:intel_get_shared_dpll] CRTC:5 using pre-allocated PCH DPLL A [ 858.205994] [drm:intel_get_shared_dpll] using PCH DPLL A for pipe A [ 858.205997] [drm:intel_get_shared_dpll] setting up PCH DPLL A [ 858.206020] [drm:ironlake_update_primary_plane] Writing base 09B7D000 00000000 0 0 5120 [ 858.206028] [drm:intel_crtc_mode_set] [ENCODER:23:TMDS-23] set [MODE:0:1280x720] [ 858.206033] [drm:intel_dp_mode_set] Enabling DP audio on pipe A [ 858.206039] [drm:intel_write_eld] ELD on [CONNECTOR:24:DP-1], [ENCODER:23:TMDS-23] [ 858.206043] [drm:ironlake_write_eld] ELD on pipe A [ 858.206047] [drm:ironlake_write_eld] Audio directed to unknown port [ 858.206050] [drm:ironlake_write_eld] ELD: DisplayPort detected [ 858.206922] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x100 [ 858.206926] [drm:ironlake_fdi_link_train] FDI train 1 done. [ 858.207084] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x200 [ 858.207087] [drm:ironlake_fdi_link_train] FDI train 2 done. [ 858.207089] [drm:ironlake_fdi_link_train] FDI train done [ 858.207093] [drm:ironlake_enable_shared_dpll] enable PCH DPLL A (active 0, on? 0)for crtc 5 [ 858.207096] [drm:ironlake_enable_shared_dpll] enabling PCH DPLL A [ 858.208707] [drm:ibx_irq_handler] *ERROR* PCH transcoder A FIFO underrun [ 858.208979] [drm:intel_dp_set_signal_levels] Using signal levels 00000000 [ 858.209448] [drm:intel_dp_start_link_train] clock recovery OK [ 858.210211] [drm:intel_dp_complete_link_train] Channel EQ done. DP Training successful [ 858.231503] [drm:intel_update_fbc] disabled per chip default [ 858.251527] [drm:intel_connector_check_state] [CONNECTOR:24:DP-1] [ 858.251542] [drm:check_encoder_state] [ENCODER:11:DAC-11] [ 858.251548] [drm:check_encoder_state] [ENCODER:12:TMDS-12] [ 858.251552] [drm:check_encoder_state] [ENCODER:21:TMDS-21] [ 858.251557] [drm:check_encoder_state] [ENCODER:23:TMDS-23] [ 858.251563] [drm:check_encoder_state] [ENCODER:25:TMDS-25] [ 858.251568] [drm:check_encoder_state] [ENCODER:27:TMDS-27] [ 858.251573] [drm:check_encoder_state] [ENCODER:29:TMDS-29] [ 858.251578] [drm:check_encoder_state] [ENCODER:31:TMDS-31] [ 858.251583] [drm:check_crtc_state] [CRTC:5] [ 858.251613] [drm:check_crtc_state] [CRTC:8] [ 858.251617] [drm:check_shared_dpll_state] PCH DPLL A [ 858.251624] [drm:check_shared_dpll_state] PCH DPLL B [ 863.254870] [drm:drm_mode_addfb2] [FB:58] [ 863.373545] [drm:drm_mode_setcrtc] [CRTC:5] [ 863.373558] [drm:drm_mode_setcrtc] [CONNECTOR:24:DP-1] [ 863.373565] [drm:intel_crtc_set_config] [CRTC:5] [FB:58] #connectors=1 (x y) (0 0) [ 863.373573] [drm:intel_set_config_compute_mode_changes] modes are different, full mode set [ 863.373581] [drm:drm_mode_debug_printmodeline] Modeline 59:"1280x720" 50 74250 1280 1720 1760 1980 720 725 730 750 0x40 0x5 [ 863.373608] [drm:drm_mode_debug_printmodeline] Modeline 59:"1024x768" 75 78800 1024 1040 1136 1312 768 769 772 800 0x40 0x5 [ 863.373614] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=1, fb_changed=1 [ 863.373621] [drm:intel_modeset_stage_output_state] [CONNECTOR:24:DP-1] to [CRTC:5] [ 863.373629] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 863.373636] [drm:connected_sink_compute_bpp] [CONNECTOR:24:DP-1] checking for sink bpp constrains [ 863.373644] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 0a pixel clock 78800KHz [ 863.373656] [drm:intel_dp_compute_config] DP link bw 0a lane count 1 clock 270000 bpp 24 [ 863.373660] [drm:intel_dp_compute_config] DP link bw required 189120 available 216000 [ 863.373671] [drm:ironlake_check_fdi_lanes] checking fdi config on pipe A, lanes 1 [ 863.373686] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 [ 863.373700] [drm:intel_dump_pipe_config] [CRTC:5][modeset] config for pipe A [ 863.373710] [drm:intel_dump_pipe_config] cpu_transcoder: A [ 863.373719] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 863.373726] [drm:intel_dump_pipe_config] fdi/pch: 1, lanes: 1, gmch_m: 3672346, gmch_n: 4194304, link_m: 153014, link_n: 524288, tu: 64 [ 863.373736] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 3672346, gmch_n: 4194304, link_m: 153014, link_n: 524288, tu: 64 [ 863.373740] [drm:intel_dump_pipe_config] requested mode: [ 863.373748] [drm:drm_mode_debug_printmodeline] Modeline 0:"1024x768" 75 78800 1024 1040 1136 1312 768 769 772 800 0x40 0x5 [ 863.373752] [drm:intel_dump_pipe_config] adjusted mode: [ 863.373761] [drm:drm_mode_debug_printmodeline] Modeline 0:"1024x768" 75 78800 1024 1040 1136 1312 768 769 772 800 0x40 0x5 [ 863.373769] [drm:intel_dump_crtc_timings] crtc timings: 78800 1024 1040 1136 1312 768 769 772 800, type: 0x40 flags: 0x5 [ 863.373773] [drm:intel_dump_pipe_config] port clock: 270000 [ 863.373778] [drm:intel_dump_pipe_config] pipe src size: 1024x768 [ 863.373784] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 863.373789] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 863.373794] [drm:intel_dump_pipe_config] ips: 0 [ 863.373798] [drm:intel_dump_pipe_config] double wide: 0 [ 863.393886] [drm:intel_dp_link_down] [ 863.496741] ------------[ cut here ]------------ [ 863.496782] WARNING: CPU: 0 PID: 4013 at drivers/gpu/drm/i915/intel_display.c:944 intel_wait_for_pipe_off+0x12e/0x135 [i915]() [ 863.496785] pipe_off wait timed out [ 863.496787] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic iTCO_wdt iTCO_vendor_support ppdev dcdbas snd_hda_intel snd_hda_controller pcspkr snd_hda_codec i2c_i801 snd_hwdep snd_pcm lpc_ich mfd_core snd_timer firewire_ohci snd firewire_core crc_itu_t soundcore wmi battery tpm_tis tpm parport_pc parport ac acpi_cpufreq joydev i915 video button drm_kms_helper drm [ 863.496823] CPU: 0 PID: 4013 Comm: testdisplay Tainted: G W 3.15.0-rc3_drm-intel-nightly_2be456_20140514+ #2598 [ 863.496825] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05 08/10/2010 [ 863.496828] 00000000 c16a5021 f4993ccc c102cf1b f8569f80 c2858000 00070008 000896aa [ 863.496835] f6175db4 c102cf96 00000009 f4993ccc f85acdb9 f4993ce4 f8569f80 f85ab5ab [ 863.496841] 000003b0 f85acdb9 c2858000 f6175db8 f5bfc000 f856f6da f4993d00 f804c166 [ 863.496848] Call Trace: [ 863.496856] [] ? dump_stack+0x3e/0x4e [ 863.496864] [] ? warn_slowpath_common+0x61/0x74 [ 863.496886] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 863.496889] [] ? warn_slowpath_fmt+0x29/0x2d [ 863.496902] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 863.496915] [] ? ironlake_crtc_disable+0x85/0x713 [i915] [ 863.496923] [] ? drm_ut_debug_printk+0x2c/0x30 [drm] [ 863.496936] [] ? intel_dump_pipe_config+0x29a/0x29f [i915] [ 863.496949] [] ? __intel_set_mode+0xbe7/0xffd [i915] [ 863.496952] [] ? console_unlock+0x309/0x33d [ 863.496954] [] ? wake_up_klogd+0x25/0x26 [ 863.496967] [] ? intel_set_mode+0x11/0x25 [i915] [ 863.496980] [] ? intel_crtc_set_config+0x646/0x8f1 [i915] [ 863.496983] [] ? printk+0x16/0x1a [ 863.496990] [] ? drm_mode_set_config_internal+0x39/0x8a [drm] [ 863.496996] [] ? drm_mode_setcrtc+0x37e/0x408 [drm] [ 863.497003] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 863.497008] [] ? drm_ioctl+0x22e/0x35f [drm] [ 863.497015] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 863.497020] [] ? drm_copy_field+0x47/0x47 [drm] [ 863.497025] [] ? do_vfs_ioctl+0x3fa/0x444 [ 863.497028] [] ? __schedule+0x597/0x6bb [ 863.497031] [] ? vfs_write+0xf8/0x157 [ 863.497033] [] ? SyS_ioctl+0x42/0x6d [ 863.497037] [] ? sysenter_do_call+0x12/0x22 [ 863.497038] ---[ end trace 705caa71d149a4f2 ]--- [ 863.498746] [drm:intel_disable_shared_dpll] disable PCH DPLL A (active 1, on? 1) for crtc 5 [ 863.498756] [drm:intel_disable_shared_dpll] disabling PCH DPLL A [ 863.499173] [drm:intel_update_fbc] no output, disabling [ 863.499204] [drm:intel_get_shared_dpll] CRTC:5 dropping existing PCH DPLL A [ 863.499206] [drm:intel_get_shared_dpll] CRTC:5 using pre-allocated PCH DPLL A [ 863.499207] [drm:intel_get_shared_dpll] using PCH DPLL A for pipe A [ 863.499209] [drm:intel_get_shared_dpll] setting up PCH DPLL A [ 863.499226] [drm:ironlake_update_primary_plane] Writing base 09F01000 00000000 0 0 4096 [ 863.499232] [drm:intel_crtc_mode_set] [ENCODER:23:TMDS-23] set [MODE:0:1024x768] [ 863.499236] [drm:intel_dp_mode_set] Enabling DP audio on pipe A [ 863.499238] [drm:intel_write_eld] ELD on [CONNECTOR:24:DP-1], [ENCODER:23:TMDS-23] [ 863.499240] [drm:ironlake_write_eld] ELD on pipe A [ 863.499243] [drm:ironlake_write_eld] Audio directed to unknown port [ 863.499244] [drm:ironlake_write_eld] ELD: DisplayPort detected [ 863.500103] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x100 [ 863.500105] [drm:ironlake_fdi_link_train] FDI train 1 done. [ 863.500261] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x200 [ 863.500263] [drm:ironlake_fdi_link_train] FDI train 2 done. [ 863.500264] [drm:ironlake_fdi_link_train] FDI train done [ 863.500266] [drm:ironlake_enable_shared_dpll] enable PCH DPLL A (active 0, on? 0)for crtc 5 [ 863.500267] [drm:ironlake_enable_shared_dpll] enabling PCH DPLL A [ 863.501810] [drm:ibx_irq_handler] *ERROR* PCH transcoder A FIFO underrun [ 863.502209] [drm:intel_dp_set_signal_levels] Using signal levels 00000000 [ 863.502676] [drm:intel_dp_start_link_train] clock recovery OK [ 863.503442] [drm:intel_dp_complete_link_train] Channel EQ done. DP Training successful [ 863.518720] [drm:intel_update_fbc] disabled per chip default [ 863.530772] [drm:intel_connector_check_state] [CONNECTOR:24:DP-1] [ 863.530785] [drm:check_encoder_state] [ENCODER:11:DAC-11] [ 863.530792] [drm:check_encoder_state] [ENCODER:12:TMDS-12] [ 863.530796] [drm:check_encoder_state] [ENCODER:21:TMDS-21] [ 863.530801] [drm:check_encoder_state] [ENCODER:23:TMDS-23] [ 863.530807] [drm:check_encoder_state] [ENCODER:25:TMDS-25] [ 863.530812] [drm:check_encoder_state] [ENCODER:27:TMDS-27] [ 863.530817] [drm:check_encoder_state] [ENCODER:29:TMDS-29] [ 863.530822] [drm:check_encoder_state] [ENCODER:31:TMDS-31] [ 863.530827] [drm:check_crtc_state] [CRTC:5] [ 863.530856] [drm:check_crtc_state] [CRTC:8] [ 863.530860] [drm:check_shared_dpll_state] PCH DPLL A [ 863.530866] [drm:check_shared_dpll_state] PCH DPLL B [ 868.534111] [drm:drm_mode_addfb2] [FB:57] [ 868.652949] [drm:drm_mode_setcrtc] [CRTC:5] [ 868.652961] [drm:drm_mode_setcrtc] [CONNECTOR:24:DP-1] [ 868.652967] [drm:intel_crtc_set_config] [CRTC:5] [FB:57] #connectors=1 (x y) (0 0) [ 868.652974] [drm:intel_set_config_compute_mode_changes] modes are different, full mode set [ 868.652982] [drm:drm_mode_debug_printmodeline] Modeline 59:"1024x768" 75 78800 1024 1040 1136 1312 768 769 772 800 0x40 0x5 [ 868.652988] [drm:drm_mode_debug_printmodeline] Modeline 59:"1024x768" 60 65000 1024 1048 1184 1344 768 771 777 806 0x40 0xa [ 868.652992] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=1, fb_changed=1 [ 868.652997] [drm:intel_modeset_stage_output_state] [CONNECTOR:24:DP-1] to [CRTC:5] [ 868.653004] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 868.653009] [drm:connected_sink_compute_bpp] [CONNECTOR:24:DP-1] checking for sink bpp constrains [ 868.653016] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 0a pixel clock 65000KHz [ 868.653026] [drm:intel_dp_compute_config] DP link bw 0a lane count 1 clock 270000 bpp 24 [ 868.653029] [drm:intel_dp_compute_config] DP link bw required 156000 available 216000 [ 868.653036] [drm:ironlake_check_fdi_lanes] checking fdi config on pipe A, lanes 1 [ 868.653040] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 [ 868.653045] [drm:intel_dump_pipe_config] [CRTC:5][modeset] config for pipe A [ 868.653047] [drm:intel_dump_pipe_config] cpu_transcoder: A [ 868.653051] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 868.653056] [drm:intel_dump_pipe_config] fdi/pch: 1, lanes: 1, gmch_m: 3029219, gmch_n: 4194304, link_m: 126217, link_n: 524288, tu: 64 [ 868.653061] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 3029219, gmch_n: 4194304, link_m: 126217, link_n: 524288, tu: 64 [ 868.653064] [drm:intel_dump_pipe_config] requested mode: [ 868.653070] [drm:drm_mode_debug_printmodeline] Modeline 0:"1024x768" 60 65000 1024 1048 1184 1344 768 771 777 806 0x40 0xa [ 868.653073] [drm:intel_dump_pipe_config] adjusted mode: [ 868.653079] [drm:drm_mode_debug_printmodeline] Modeline 0:"1024x768" 60 65000 1024 1048 1184 1344 768 771 777 806 0x40 0xa [ 868.653085] [drm:intel_dump_crtc_timings] crtc timings: 65000 1024 1048 1184 1344 768 771 777 806, type: 0x40 flags: 0xa [ 868.653088] [drm:intel_dump_pipe_config] port clock: 270000 [ 868.653091] [drm:intel_dump_pipe_config] pipe src size: 1024x768 [ 868.653095] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 868.653099] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 868.653102] [drm:intel_dump_pipe_config] ips: 0 [ 868.653105] [drm:intel_dump_pipe_config] double wide: 0 [ 868.663143] [drm:intel_dp_link_down] [ 868.765989] ------------[ cut here ]------------ [ 868.766030] WARNING: CPU: 2 PID: 4013 at drivers/gpu/drm/i915/intel_display.c:944 intel_wait_for_pipe_off+0x12e/0x135 [i915]() [ 868.766033] pipe_off wait timed out [ 868.766035] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic iTCO_wdt iTCO_vendor_support ppdev dcdbas snd_hda_intel snd_hda_controller pcspkr snd_hda_codec i2c_i801 snd_hwdep snd_pcm lpc_ich mfd_core snd_timer firewire_ohci snd firewire_core crc_itu_t soundcore wmi battery tpm_tis tpm parport_pc parport ac acpi_cpufreq joydev i915 video button drm_kms_helper drm [ 868.766070] CPU: 2 PID: 4013 Comm: testdisplay Tainted: G W 3.15.0-rc3_drm-intel-nightly_2be456_20140514+ #2598 [ 868.766073] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05 08/10/2010 [ 868.766076] 00000000 c16a5021 f4993ccc c102cf1b f8569f80 c2858000 00070008 0008ab3c [ 868.766082] f6175db4 c102cf96 00000009 f4993ccc f85acdb9 f4993ce4 f8569f80 f85ab5ab [ 868.766089] 000003b0 f85acdb9 c2858000 f6175db8 f5bfc000 f856f6da f4993d00 f804c166 [ 868.766096] Call Trace: [ 868.766103] [] ? dump_stack+0x3e/0x4e [ 868.766111] [] ? warn_slowpath_common+0x61/0x74 [ 868.766137] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 868.766143] [] ? warn_slowpath_fmt+0x29/0x2d [ 868.766169] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 868.766195] [] ? ironlake_crtc_disable+0x85/0x713 [i915] [ 868.766209] [] ? drm_ut_debug_printk+0x2c/0x30 [drm] [ 868.766235] [] ? intel_dump_pipe_config+0x29a/0x29f [i915] [ 868.766260] [] ? __intel_set_mode+0xbe7/0xffd [i915] [ 868.766265] [] ? console_unlock+0x309/0x33d [ 868.766269] [] ? wake_up_klogd+0x25/0x26 [ 868.766295] [] ? intel_set_mode+0x11/0x25 [i915] [ 868.766320] [] ? intel_crtc_set_config+0x646/0x8f1 [i915] [ 868.766325] [] ? printk+0x16/0x1a [ 868.766339] [] ? drm_mode_set_config_internal+0x39/0x8a [drm] [ 868.766352] [] ? drm_mode_setcrtc+0x37e/0x408 [drm] [ 868.766365] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 868.766376] [] ? drm_ioctl+0x22e/0x35f [drm] [ 868.766389] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 868.766400] [] ? drm_copy_field+0x47/0x47 [drm] [ 868.766407] [] ? do_vfs_ioctl+0x3fa/0x444 [ 868.766412] [] ? __schedule+0x597/0x6bb [ 868.766417] [] ? vfs_write+0xf8/0x157 [ 868.766421] [] ? SyS_ioctl+0x42/0x6d [ 868.766427] [] ? sysenter_do_call+0x12/0x22 [ 868.766430] ---[ end trace 705caa71d149a4f3 ]--- [ 868.770024] [drm:intel_disable_shared_dpll] disable PCH DPLL A (active 1, on? 1) for crtc 5 [ 868.770034] [drm:intel_disable_shared_dpll] disabling PCH DPLL A [ 868.770454] [drm:intel_update_fbc] no output, disabling [ 868.770519] [drm:intel_get_shared_dpll] CRTC:5 dropping existing PCH DPLL A [ 868.770523] [drm:intel_get_shared_dpll] CRTC:5 using pre-allocated PCH DPLL A [ 868.770527] [drm:intel_get_shared_dpll] using PCH DPLL A for pipe A [ 868.770529] [drm:intel_get_shared_dpll] setting up PCH DPLL A [ 868.770551] [drm:ironlake_update_primary_plane] Writing base 0A201000 00000000 0 0 4096 [ 868.770560] [drm:intel_crtc_mode_set] [ENCODER:23:TMDS-23] set [MODE:0:1024x768] [ 868.770565] [drm:intel_dp_mode_set] Enabling DP audio on pipe A [ 868.770571] [drm:intel_write_eld] ELD on [CONNECTOR:24:DP-1], [ENCODER:23:TMDS-23] [ 868.770574] [drm:ironlake_write_eld] ELD on pipe A [ 868.770578] [drm:ironlake_write_eld] Audio directed to unknown port [ 868.770580] [drm:ironlake_write_eld] ELD: DisplayPort detected [ 868.771458] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x100 [ 868.771462] [drm:ironlake_fdi_link_train] FDI train 1 done. [ 868.771620] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x200 [ 868.771625] [drm:ironlake_fdi_link_train] FDI train 2 done. [ 868.771628] [drm:ironlake_fdi_link_train] FDI train done [ 868.771632] [drm:ironlake_enable_shared_dpll] enable PCH DPLL A (active 0, on? 0)for crtc 5 [ 868.771636] [drm:ironlake_enable_shared_dpll] enabling PCH DPLL A [ 868.773217] [drm:ibx_irq_handler] *ERROR* PCH transcoder A FIFO underrun [ 868.773516] [drm:intel_dp_set_signal_levels] Using signal levels 00000000 [ 868.773984] [drm:intel_dp_start_link_train] clock recovery OK [ 868.774747] [drm:intel_dp_complete_link_train] Channel EQ done. DP Training successful [ 868.791970] [drm:intel_update_fbc] disabled per chip default [ 868.809991] [drm:intel_connector_check_state] [CONNECTOR:24:DP-1] [ 868.810005] [drm:check_encoder_state] [ENCODER:11:DAC-11] [ 868.810010] [drm:check_encoder_state] [ENCODER:12:TMDS-12] [ 868.810014] [drm:check_encoder_state] [ENCODER:21:TMDS-21] [ 868.810020] [drm:check_encoder_state] [ENCODER:23:TMDS-23] [ 868.810024] [drm:check_encoder_state] [ENCODER:25:TMDS-25] [ 868.810030] [drm:check_encoder_state] [ENCODER:27:TMDS-27] [ 868.810035] [drm:check_encoder_state] [ENCODER:29:TMDS-29] [ 868.810040] [drm:check_encoder_state] [ENCODER:31:TMDS-31] [ 868.810044] [drm:check_crtc_state] [CRTC:5] [ 868.810072] [drm:check_crtc_state] [CRTC:8] [ 868.810076] [drm:check_shared_dpll_state] PCH DPLL A [ 868.810085] [drm:check_shared_dpll_state] PCH DPLL B [ 873.813332] [drm:drm_mode_addfb2] [FB:58] [ 873.923131] [drm:drm_mode_setcrtc] [CRTC:5] [ 873.923142] [drm:drm_mode_setcrtc] [CONNECTOR:24:DP-1] [ 873.923148] [drm:intel_crtc_set_config] [CRTC:5] [FB:58] #connectors=1 (x y) (0 0) [ 873.923154] [drm:intel_set_config_compute_mode_changes] modes are different, full mode set [ 873.923161] [drm:drm_mode_debug_printmodeline] Modeline 59:"1024x768" 60 65000 1024 1048 1184 1344 768 771 777 806 0x40 0xa [ 873.923168] [drm:drm_mode_debug_printmodeline] Modeline 59:"800x600" 75 49500 800 816 896 1056 600 601 604 625 0x40 0x5 [ 873.923172] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=1, fb_changed=1 [ 873.923177] [drm:intel_modeset_stage_output_state] [CONNECTOR:24:DP-1] to [CRTC:5] [ 873.923183] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 873.923188] [drm:connected_sink_compute_bpp] [CONNECTOR:24:DP-1] checking for sink bpp constrains [ 873.923194] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 0a pixel clock 49500KHz [ 873.923204] [drm:intel_dp_compute_config] DP link bw 06 lane count 1 clock 162000 bpp 24 [ 873.923207] [drm:intel_dp_compute_config] DP link bw required 118800 available 129600 [ 873.923213] [drm:ironlake_check_fdi_lanes] checking fdi config on pipe A, lanes 1 [ 873.923217] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 [ 873.923221] [drm:intel_dump_pipe_config] [CRTC:5][modeset] config for pipe A [ 873.923224] [drm:intel_dump_pipe_config] cpu_transcoder: A [ 873.923227] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 873.923233] [drm:intel_dump_pipe_config] fdi/pch: 1, lanes: 1, gmch_m: 2306867, gmch_n: 4194304, link_m: 96119, link_n: 524288, tu: 64 [ 873.923238] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 1922389, gmch_n: 2097152, link_m: 80099, link_n: 262144, tu: 64 [ 873.923241] [drm:intel_dump_pipe_config] requested mode: [ 873.923247] [drm:drm_mode_debug_printmodeline] Modeline 0:"800x600" 75 49500 800 816 896 1056 600 601 604 625 0x40 0x5 [ 873.923249] [drm:intel_dump_pipe_config] adjusted mode: [ 873.923255] [drm:drm_mode_debug_printmodeline] Modeline 0:"800x600" 75 49500 800 816 896 1056 600 601 604 625 0x40 0x5 [ 873.923260] [drm:intel_dump_crtc_timings] crtc timings: 49500 800 816 896 1056 600 601 604 625, type: 0x40 flags: 0x5 [ 873.923264] [drm:intel_dump_pipe_config] port clock: 162000 [ 873.923267] [drm:intel_dump_pipe_config] pipe src size: 800x600 [ 873.923271] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 873.923274] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 873.923277] [drm:intel_dump_pipe_config] ips: 0 [ 873.923280] [drm:intel_dump_pipe_config] double wide: 0 [ 873.929380] [drm:intel_dp_link_down] [ 874.032233] ------------[ cut here ]------------ [ 874.032272] WARNING: CPU: 0 PID: 4013 at drivers/gpu/drm/i915/intel_display.c:944 intel_wait_for_pipe_off+0x12e/0x135 [i915]() [ 874.032276] pipe_off wait timed out [ 874.032277] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic iTCO_wdt iTCO_vendor_support ppdev dcdbas snd_hda_intel snd_hda_controller pcspkr snd_hda_codec i2c_i801 snd_hwdep snd_pcm lpc_ich mfd_core snd_timer firewire_ohci snd firewire_core crc_itu_t soundcore wmi battery tpm_tis tpm parport_pc parport ac acpi_cpufreq joydev i915 video button drm_kms_helper drm [ 874.032312] CPU: 0 PID: 4013 Comm: testdisplay Tainted: G W 3.15.0-rc3_drm-intel-nightly_2be456_20140514+ #2598 [ 874.032315] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05 08/10/2010 [ 874.032318] 00000000 c16a5021 f4993ccc c102cf1b f8569f80 c2858000 00070008 0008bfcb [ 874.032324] f6175db4 c102cf96 00000009 f4993ccc f85acdb9 f4993ce4 f8569f80 f85ab5ab [ 874.032331] 000003b0 f85acdb9 c2858000 f6175db8 f5bfc000 f856f6da f4993d00 f804c166 [ 874.032337] Call Trace: [ 874.032345] [] ? dump_stack+0x3e/0x4e [ 874.032352] [] ? warn_slowpath_common+0x61/0x74 [ 874.032377] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 874.032379] [] ? warn_slowpath_fmt+0x29/0x2d [ 874.032393] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 874.032406] [] ? ironlake_crtc_disable+0x85/0x713 [i915] [ 874.032414] [] ? drm_ut_debug_printk+0x2c/0x30 [drm] [ 874.032427] [] ? intel_dump_pipe_config+0x29a/0x29f [i915] [ 874.032440] [] ? __intel_set_mode+0xbe7/0xffd [i915] [ 874.032442] [] ? console_unlock+0x309/0x33d [ 874.032444] [] ? wake_up_klogd+0x25/0x26 [ 874.032457] [] ? intel_set_mode+0x11/0x25 [i915] [ 874.032470] [] ? intel_crtc_set_config+0x646/0x8f1 [i915] [ 874.032474] [] ? printk+0x16/0x1a [ 874.032482] [] ? drm_mode_set_config_internal+0x39/0x8a [drm] [ 874.032488] [] ? drm_mode_setcrtc+0x37e/0x408 [drm] [ 874.032495] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 874.032500] [] ? drm_ioctl+0x22e/0x35f [drm] [ 874.032507] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 874.032512] [] ? drm_copy_field+0x47/0x47 [drm] [ 874.032517] [] ? do_vfs_ioctl+0x3fa/0x444 [ 874.032520] [] ? __schedule+0x597/0x6bb [ 874.032523] [] ? vfs_write+0xf8/0x157 [ 874.032525] [] ? SyS_ioctl+0x42/0x6d [ 874.032528] [] ? sysenter_do_call+0x12/0x22 [ 874.032529] ---[ end trace 705caa71d149a4f4 ]--- [ 874.034168] [drm:intel_disable_shared_dpll] disable PCH DPLL A (active 1, on? 1) for crtc 5 [ 874.034174] [drm:intel_disable_shared_dpll] disabling PCH DPLL A [ 874.034590] [drm:intel_update_fbc] no output, disabling [ 874.034607] [drm:intel_get_shared_dpll] CRTC:5 dropping existing PCH DPLL A [ 874.034608] [drm:intel_get_shared_dpll] CRTC:5 using pre-allocated PCH DPLL A [ 874.034610] [drm:intel_get_shared_dpll] using PCH DPLL A for pipe A [ 874.034611] [drm:intel_get_shared_dpll] setting up PCH DPLL A [ 874.034628] [drm:ironlake_update_primary_plane] Writing base 0A501000 00000000 0 0 3200 [ 874.034634] [drm:intel_crtc_mode_set] [ENCODER:23:TMDS-23] set [MODE:0:800x600] [ 874.034637] [drm:intel_dp_mode_set] Enabling DP audio on pipe A [ 874.034639] [drm:intel_write_eld] ELD on [CONNECTOR:24:DP-1], [ENCODER:23:TMDS-23] [ 874.034641] [drm:ironlake_write_eld] ELD on pipe A [ 874.034644] [drm:ironlake_write_eld] Audio directed to unknown port [ 874.034645] [drm:ironlake_write_eld] ELD: DisplayPort detected [ 874.035504] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x100 [ 874.035506] [drm:ironlake_fdi_link_train] FDI train 1 done. [ 874.035663] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x200 [ 874.035664] [drm:ironlake_fdi_link_train] FDI train 2 done. [ 874.035665] [drm:ironlake_fdi_link_train] FDI train done [ 874.035667] [drm:ironlake_enable_shared_dpll] enable PCH DPLL A (active 0, on? 0)for crtc 5 [ 874.035668] [drm:ironlake_enable_shared_dpll] enabling PCH DPLL A [ 874.037219] [drm:ibx_irq_handler] *ERROR* PCH transcoder A FIFO underrun [ 874.037624] [drm:intel_dp_set_signal_levels] Using signal levels 00000000 [ 874.038081] [drm:intel_dp_start_link_train] clock recovery OK [ 874.038853] [drm:intel_dp_complete_link_train] Channel EQ done. DP Training successful [ 874.054214] [drm:intel_update_fbc] disabled per chip default [ 874.066282] [drm:intel_connector_check_state] [CONNECTOR:24:DP-1] [ 874.066298] [drm:check_encoder_state] [ENCODER:11:DAC-11] [ 874.066304] [drm:check_encoder_state] [ENCODER:12:TMDS-12] [ 874.066308] [drm:check_encoder_state] [ENCODER:21:TMDS-21] [ 874.066313] [drm:check_encoder_state] [ENCODER:23:TMDS-23] [ 874.066319] [drm:check_encoder_state] [ENCODER:25:TMDS-25] [ 874.066324] [drm:check_encoder_state] [ENCODER:27:TMDS-27] [ 874.066329] [drm:check_encoder_state] [ENCODER:29:TMDS-29] [ 874.066334] [drm:check_encoder_state] [ENCODER:31:TMDS-31] [ 874.066339] [drm:check_crtc_state] [CRTC:5] [ 874.066369] [drm:check_crtc_state] [CRTC:8] [ 874.066373] [drm:check_shared_dpll_state] PCH DPLL A [ 874.066380] [drm:check_shared_dpll_state] PCH DPLL B [ 879.069628] [drm:drm_mode_addfb2] [FB:57] [ 879.179962] [drm:drm_mode_setcrtc] [CRTC:5] [ 879.179973] [drm:drm_mode_setcrtc] [CONNECTOR:24:DP-1] [ 879.179979] [drm:intel_crtc_set_config] [CRTC:5] [FB:57] #connectors=1 (x y) (0 0) [ 879.179986] [drm:intel_set_config_compute_mode_changes] modes are different, full mode set [ 879.179993] [drm:drm_mode_debug_printmodeline] Modeline 59:"800x600" 75 49500 800 816 896 1056 600 601 604 625 0x40 0x5 [ 879.179999] [drm:drm_mode_debug_printmodeline] Modeline 59:"800x600" 60 40000 800 840 968 1056 600 601 605 628 0x40 0x5 [ 879.180003] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=1, fb_changed=1 [ 879.180008] [drm:intel_modeset_stage_output_state] [CONNECTOR:24:DP-1] to [CRTC:5] [ 879.180014] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 879.180020] [drm:connected_sink_compute_bpp] [CONNECTOR:24:DP-1] checking for sink bpp constrains [ 879.180026] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 0a pixel clock 40000KHz [ 879.180036] [drm:intel_dp_compute_config] DP link bw 06 lane count 1 clock 162000 bpp 24 [ 879.180039] [drm:intel_dp_compute_config] DP link bw required 96000 available 129600 [ 879.180045] [drm:ironlake_check_fdi_lanes] checking fdi config on pipe A, lanes 1 [ 879.180049] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 [ 879.180053] [drm:intel_dump_pipe_config] [CRTC:5][modeset] config for pipe A [ 879.180056] [drm:intel_dump_pipe_config] cpu_transcoder: A [ 879.180059] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 879.180065] [drm:intel_dump_pipe_config] fdi/pch: 1, lanes: 1, gmch_m: 1864135, gmch_n: 4194304, link_m: 77672, link_n: 524288, tu: 64 [ 879.180069] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 1553445, gmch_n: 2097152, link_m: 64726, link_n: 262144, tu: 64 [ 879.180072] [drm:intel_dump_pipe_config] requested mode: [ 879.180078] [drm:drm_mode_debug_printmodeline] Modeline 0:"800x600" 60 40000 800 840 968 1056 600 601 605 628 0x40 0x5 [ 879.180081] [drm:intel_dump_pipe_config] adjusted mode: [ 879.180087] [drm:drm_mode_debug_printmodeline] Modeline 0:"800x600" 60 40000 800 840 968 1056 600 601 605 628 0x40 0x5 [ 879.180092] [drm:intel_dump_crtc_timings] crtc timings: 40000 800 840 968 1056 600 601 605 628, type: 0x40 flags: 0x5 [ 879.180095] [drm:intel_dump_pipe_config] port clock: 162000 [ 879.180098] [drm:intel_dump_pipe_config] pipe src size: 800x600 [ 879.180102] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 879.180106] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 879.180109] [drm:intel_dump_pipe_config] ips: 0 [ 879.180112] [drm:intel_dump_pipe_config] double wide: 0 [ 879.189620] [drm:intel_dp_link_down] [ 879.292480] ------------[ cut here ]------------ [ 879.292527] WARNING: CPU: 2 PID: 4013 at drivers/gpu/drm/i915/intel_display.c:944 intel_wait_for_pipe_off+0x12e/0x135 [i915]() [ 879.292530] pipe_off wait timed out [ 879.292533] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic iTCO_wdt iTCO_vendor_support ppdev dcdbas snd_hda_intel snd_hda_controller pcspkr snd_hda_codec i2c_i801 snd_hwdep snd_pcm lpc_ich mfd_core snd_timer firewire_ohci snd firewire_core crc_itu_t soundcore wmi battery tpm_tis tpm parport_pc parport ac acpi_cpufreq joydev i915 video button drm_kms_helper drm [ 879.292575] CPU: 2 PID: 4013 Comm: testdisplay Tainted: G W 3.15.0-rc3_drm-intel-nightly_2be456_20140514+ #2598 [ 879.292578] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05 08/10/2010 [ 879.292581] 00000000 c16a5021 f4993ccc c102cf1b f8569f80 c2858000 00070008 0008d454 [ 879.292589] f6175db4 c102cf96 00000009 f4993ccc f85acdb9 f4993ce4 f8569f80 f85ab5ab [ 879.292597] 000003b0 f85acdb9 c2858000 f6175db8 f5bfc000 f856f6da f4993d00 f804c166 [ 879.292605] Call Trace: [ 879.292613] [] ? dump_stack+0x3e/0x4e [ 879.292622] [] ? warn_slowpath_common+0x61/0x74 [ 879.292653] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 879.292659] [] ? warn_slowpath_fmt+0x29/0x2d [ 879.292691] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 879.292723] [] ? ironlake_crtc_disable+0x85/0x713 [i915] [ 879.292739] [] ? drm_ut_debug_printk+0x2c/0x30 [drm] [ 879.292771] [] ? intel_dump_pipe_config+0x29a/0x29f [i915] [ 879.292802] [] ? __intel_set_mode+0xbe7/0xffd [i915] [ 879.292808] [] ? console_unlock+0x309/0x33d [ 879.292813] [] ? wake_up_klogd+0x25/0x26 [ 879.292844] [] ? intel_set_mode+0x11/0x25 [i915] [ 879.292875] [] ? intel_crtc_set_config+0x646/0x8f1 [i915] [ 879.292882] [] ? printk+0x16/0x1a [ 879.292899] [] ? drm_mode_set_config_internal+0x39/0x8a [drm] [ 879.292915] [] ? drm_mode_setcrtc+0x37e/0x408 [drm] [ 879.292931] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 879.292944] [] ? drm_ioctl+0x22e/0x35f [drm] [ 879.292960] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 879.292974] [] ? drm_copy_field+0x47/0x47 [drm] [ 879.292982] [] ? do_vfs_ioctl+0x3fa/0x444 [ 879.292987] [] ? __schedule+0x597/0x6bb [ 879.292993] [] ? vfs_write+0xf8/0x157 [ 879.292998] [] ? SyS_ioctl+0x42/0x6d [ 879.293004] [] ? sysenter_do_call+0x12/0x22 [ 879.293008] ---[ end trace 705caa71d149a4f5 ]--- [ 879.296492] [drm:intel_disable_shared_dpll] disable PCH DPLL A (active 1, on? 1) for crtc 5 [ 879.296502] [drm:intel_disable_shared_dpll] disabling PCH DPLL A [ 879.296922] [drm:intel_update_fbc] no output, disabling [ 879.296958] [drm:intel_get_shared_dpll] CRTC:5 dropping existing PCH DPLL A [ 879.296962] [drm:intel_get_shared_dpll] CRTC:5 using pre-allocated PCH DPLL A [ 879.296965] [drm:intel_get_shared_dpll] using PCH DPLL A for pipe A [ 879.296968] [drm:intel_get_shared_dpll] setting up PCH DPLL A [ 879.296990] [drm:ironlake_update_primary_plane] Writing base 0A6D6000 00000000 0 0 3200 [ 879.296999] [drm:intel_crtc_mode_set] [ENCODER:23:TMDS-23] set [MODE:0:800x600] [ 879.297004] [drm:intel_dp_mode_set] Enabling DP audio on pipe A [ 879.297009] [drm:intel_write_eld] ELD on [CONNECTOR:24:DP-1], [ENCODER:23:TMDS-23] [ 879.297013] [drm:ironlake_write_eld] ELD on pipe A [ 879.297017] [drm:ironlake_write_eld] Audio directed to unknown port [ 879.297020] [drm:ironlake_write_eld] ELD: DisplayPort detected [ 879.297901] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x100 [ 879.297904] [drm:ironlake_fdi_link_train] FDI train 1 done. [ 879.298063] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x200 [ 879.298066] [drm:ironlake_fdi_link_train] FDI train 2 done. [ 879.298069] [drm:ironlake_fdi_link_train] FDI train done [ 879.298073] [drm:ironlake_enable_shared_dpll] enable PCH DPLL A (active 0, on? 0)for crtc 5 [ 879.298076] [drm:ironlake_enable_shared_dpll] enabling PCH DPLL A [ 879.299652] [drm:ibx_irq_handler] *ERROR* PCH transcoder A FIFO underrun [ 879.299955] [drm:intel_dp_set_signal_levels] Using signal levels 00000000 [ 879.300425] [drm:intel_dp_start_link_train] clock recovery OK [ 879.301188] [drm:intel_dp_complete_link_train] Channel EQ done. DP Training successful [ 879.318451] [drm:intel_update_fbc] disabled per chip default [ 879.334445] [drm:intel_connector_check_state] [CONNECTOR:24:DP-1] [ 879.334459] [drm:check_encoder_state] [ENCODER:11:DAC-11] [ 879.334464] [drm:check_encoder_state] [ENCODER:12:TMDS-12] [ 879.334469] [drm:check_encoder_state] [ENCODER:21:TMDS-21] [ 879.334474] [drm:check_encoder_state] [ENCODER:23:TMDS-23] [ 879.334480] [drm:check_encoder_state] [ENCODER:25:TMDS-25] [ 879.334485] [drm:check_encoder_state] [ENCODER:27:TMDS-27] [ 879.334490] [drm:check_encoder_state] [ENCODER:29:TMDS-29] [ 879.334495] [drm:check_encoder_state] [ENCODER:31:TMDS-31] [ 879.334500] [drm:check_crtc_state] [CRTC:5] [ 879.334528] [drm:check_crtc_state] [CRTC:8] [ 879.334532] [drm:check_shared_dpll_state] PCH DPLL A [ 879.334539] [drm:check_shared_dpll_state] PCH DPLL B [ 884.337790] [drm:drm_mode_addfb2] [FB:58] [ 884.444264] [drm:drm_mode_setcrtc] [CRTC:5] [ 884.444275] [drm:drm_mode_setcrtc] [CONNECTOR:24:DP-1] [ 884.444280] [drm:intel_crtc_set_config] [CRTC:5] [FB:58] #connectors=1 (x y) (0 0) [ 884.444287] [drm:intel_set_config_compute_mode_changes] modes are different, full mode set [ 884.444294] [drm:drm_mode_debug_printmodeline] Modeline 59:"800x600" 60 40000 800 840 968 1056 600 601 605 628 0x40 0x5 [ 884.444300] [drm:drm_mode_debug_printmodeline] Modeline 59:"720x576" 50 27000 720 732 796 864 576 581 586 625 0x40 0xa [ 884.444304] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=1, fb_changed=1 [ 884.444309] [drm:intel_modeset_stage_output_state] [CONNECTOR:24:DP-1] to [CRTC:5] [ 884.444316] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 884.444321] [drm:connected_sink_compute_bpp] [CONNECTOR:24:DP-1] checking for sink bpp constrains [ 884.444327] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 0a pixel clock 27000KHz [ 884.444335] [drm:intel_dp_compute_config] DP link bw 06 lane count 1 clock 162000 bpp 24 [ 884.444338] [drm:intel_dp_compute_config] DP link bw required 64800 available 129600 [ 884.444344] [drm:ironlake_check_fdi_lanes] checking fdi config on pipe A, lanes 1 [ 884.444348] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 [ 884.444352] [drm:intel_dump_pipe_config] [CRTC:5][modeset] config for pipe A [ 884.444355] [drm:intel_dump_pipe_config] cpu_transcoder: A [ 884.444358] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 884.444364] [drm:intel_dump_pipe_config] fdi/pch: 1, lanes: 1, gmch_m: 1258291, gmch_n: 4194304, link_m: 52428, link_n: 524288, tu: 64 [ 884.444369] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 1048576, gmch_n: 2097152, link_m: 43690, link_n: 262144, tu: 64 [ 884.444371] [drm:intel_dump_pipe_config] requested mode: [ 884.444377] [drm:drm_mode_debug_printmodeline] Modeline 0:"720x576" 50 27000 720 732 796 864 576 581 586 625 0x40 0xa [ 884.444380] [drm:intel_dump_pipe_config] adjusted mode: [ 884.444386] [drm:drm_mode_debug_printmodeline] Modeline 0:"720x576" 50 27000 720 732 796 864 576 581 586 625 0x40 0xa [ 884.444391] [drm:intel_dump_crtc_timings] crtc timings: 27000 720 732 796 864 576 581 586 625, type: 0x40 flags: 0xa [ 884.444394] [drm:intel_dump_pipe_config] port clock: 162000 [ 884.444397] [drm:intel_dump_pipe_config] pipe src size: 720x576 [ 884.444401] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 884.444405] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 884.444408] [drm:intel_dump_pipe_config] ips: 0 [ 884.444411] [drm:intel_dump_pipe_config] double wide: 0 [ 884.461856] [drm:intel_dp_link_down] [ 884.564731] ------------[ cut here ]------------ [ 884.564776] WARNING: CPU: 2 PID: 4013 at drivers/gpu/drm/i915/intel_display.c:944 intel_wait_for_pipe_off+0x12e/0x135 [i915]() [ 884.564780] pipe_off wait timed out [ 884.564782] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic iTCO_wdt iTCO_vendor_support ppdev dcdbas snd_hda_intel snd_hda_controller pcspkr snd_hda_codec i2c_i801 snd_hwdep snd_pcm lpc_ich mfd_core snd_timer firewire_ohci snd firewire_core crc_itu_t soundcore wmi battery tpm_tis tpm parport_pc parport ac acpi_cpufreq joydev i915 video button drm_kms_helper drm [ 884.564824] CPU: 2 PID: 4013 Comm: testdisplay Tainted: G W 3.15.0-rc3_drm-intel-nightly_2be456_20140514+ #2598 [ 884.564827] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05 08/10/2010 [ 884.564830] 00000000 c16a5021 f4993ccc c102cf1b f8569f80 c2858000 00070008 0008e8e9 [ 884.564838] f6175db4 c102cf96 00000009 f4993ccc f85acdb9 f4993ce4 f8569f80 f85ab5ab [ 884.564846] 000003b0 f85acdb9 c2858000 f6175db8 f5bfc000 f856f6da f4993d00 f804c166 [ 884.564854] Call Trace: [ 884.564863] [] ? dump_stack+0x3e/0x4e [ 884.564871] [] ? warn_slowpath_common+0x61/0x74 [ 884.564903] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 884.564909] [] ? warn_slowpath_fmt+0x29/0x2d [ 884.564941] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 884.564973] [] ? ironlake_crtc_disable+0x85/0x713 [i915] [ 884.564989] [] ? drm_ut_debug_printk+0x2c/0x30 [drm] [ 884.565021] [] ? intel_dump_pipe_config+0x29a/0x29f [i915] [ 884.565051] [] ? __intel_set_mode+0xbe7/0xffd [i915] [ 884.565057] [] ? console_unlock+0x309/0x33d [ 884.565062] [] ? wake_up_klogd+0x25/0x26 [ 884.565093] [] ? intel_set_mode+0x11/0x25 [i915] [ 884.565124] [] ? intel_crtc_set_config+0x646/0x8f1 [i915] [ 884.565131] [] ? printk+0x16/0x1a [ 884.565148] [] ? drm_mode_set_config_internal+0x39/0x8a [drm] [ 884.565164] [] ? drm_mode_setcrtc+0x37e/0x408 [drm] [ 884.565180] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 884.565192] [] ? drm_ioctl+0x22e/0x35f [drm] [ 884.565208] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 884.565222] [] ? drm_copy_field+0x47/0x47 [drm] [ 884.565229] [] ? do_vfs_ioctl+0x3fa/0x444 [ 884.565234] [] ? __schedule+0x597/0x6bb [ 884.565240] [] ? vfs_write+0xf8/0x157 [ 884.565245] [] ? SyS_ioctl+0x42/0x6d [ 884.565251] [] ? sysenter_do_call+0x12/0x22 [ 884.565255] ---[ end trace 705caa71d149a4f6 ]--- [ 884.568727] [drm:intel_disable_shared_dpll] disable PCH DPLL A (active 1, on? 1) for crtc 5 [ 884.568736] [drm:intel_disable_shared_dpll] disabling PCH DPLL A [ 884.569156] [drm:intel_update_fbc] no output, disabling [ 884.569192] [drm:intel_get_shared_dpll] CRTC:5 dropping existing PCH DPLL A [ 884.569195] [drm:intel_get_shared_dpll] CRTC:5 using pre-allocated PCH DPLL A [ 884.569199] [drm:intel_get_shared_dpll] using PCH DPLL A for pipe A [ 884.569202] [drm:intel_get_shared_dpll] setting up PCH DPLL A [ 884.569223] [drm:ironlake_update_primary_plane] Writing base 0A8AB000 00000000 0 0 2880 [ 884.569232] [drm:intel_crtc_mode_set] [ENCODER:23:TMDS-23] set [MODE:0:720x576] [ 884.569236] [drm:intel_dp_mode_set] Enabling DP audio on pipe A [ 884.569242] [drm:intel_write_eld] ELD on [CONNECTOR:24:DP-1], [ENCODER:23:TMDS-23] [ 884.569245] [drm:ironlake_write_eld] ELD on pipe A [ 884.569249] [drm:ironlake_write_eld] Audio directed to unknown port [ 884.569252] [drm:ironlake_write_eld] ELD: DisplayPort detected [ 884.570135] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x100 [ 884.570139] [drm:ironlake_fdi_link_train] FDI train 1 done. [ 884.570297] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x200 [ 884.570300] [drm:ironlake_fdi_link_train] FDI train 2 done. [ 884.570303] [drm:ironlake_fdi_link_train] FDI train done [ 884.570307] [drm:ironlake_enable_shared_dpll] enable PCH DPLL A (active 0, on? 0)for crtc 5 [ 884.570310] [drm:ironlake_enable_shared_dpll] enabling PCH DPLL A [ 884.571964] [drm:ibx_irq_handler] *ERROR* PCH transcoder A FIFO underrun [ 884.572184] [drm:intel_dp_set_signal_levels] Using signal levels 00000000 [ 884.572650] [drm:intel_dp_start_link_train] clock recovery OK [ 884.573425] [drm:intel_dp_complete_link_train] Channel EQ done. DP Training successful [ 884.594763] [drm:intel_update_fbc] disabled per chip default [ 884.614767] [drm:intel_connector_check_state] [CONNECTOR:24:DP-1] [ 884.614780] [drm:check_encoder_state] [ENCODER:11:DAC-11] [ 884.614785] [drm:check_encoder_state] [ENCODER:12:TMDS-12] [ 884.614789] [drm:check_encoder_state] [ENCODER:21:TMDS-21] [ 884.614793] [drm:check_encoder_state] [ENCODER:23:TMDS-23] [ 884.614798] [drm:check_encoder_state] [ENCODER:25:TMDS-25] [ 884.614803] [drm:check_encoder_state] [ENCODER:27:TMDS-27] [ 884.614807] [drm:check_encoder_state] [ENCODER:29:TMDS-29] [ 884.614812] [drm:check_encoder_state] [ENCODER:31:TMDS-31] [ 884.614816] [drm:check_crtc_state] [CRTC:5] [ 884.614843] [drm:check_crtc_state] [CRTC:8] [ 884.614846] [drm:check_shared_dpll_state] PCH DPLL A [ 884.614852] [drm:check_shared_dpll_state] PCH DPLL B [ 889.618093] [drm:drm_mode_addfb2] [FB:57] [ 889.712556] [drm:drm_mode_setcrtc] [CRTC:5] [ 889.712566] [drm:drm_mode_setcrtc] [CONNECTOR:24:DP-1] [ 889.712571] [drm:intel_crtc_set_config] [CRTC:5] [FB:57] #connectors=1 (x y) (0 0) [ 889.712578] [drm:intel_set_config_compute_mode_changes] modes are different, full mode set [ 889.712585] [drm:drm_mode_debug_printmodeline] Modeline 59:"720x576" 50 27000 720 732 796 864 576 581 586 625 0x40 0xa [ 889.712591] [drm:drm_mode_debug_printmodeline] Modeline 59:"720x480" 60 27027 720 736 798 858 480 489 495 525 0x40 0xa [ 889.712595] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=1, fb_changed=1 [ 889.712600] [drm:intel_modeset_stage_output_state] [CONNECTOR:24:DP-1] to [CRTC:5] [ 889.712606] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 889.712611] [drm:connected_sink_compute_bpp] [CONNECTOR:24:DP-1] checking for sink bpp constrains [ 889.712616] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 0a pixel clock 27027KHz [ 889.712622] [drm:intel_dp_compute_config] DP link bw 06 lane count 1 clock 162000 bpp 24 [ 889.712626] [drm:intel_dp_compute_config] DP link bw required 64865 available 129600 [ 889.712631] [drm:ironlake_check_fdi_lanes] checking fdi config on pipe A, lanes 1 [ 889.712635] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 [ 889.712640] [drm:intel_dump_pipe_config] [CRTC:5][modeset] config for pipe A [ 889.712642] [drm:intel_dump_pipe_config] cpu_transcoder: A [ 889.712645] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 889.712651] [drm:intel_dump_pipe_config] fdi/pch: 1, lanes: 1, gmch_m: 1259549, gmch_n: 4194304, link_m: 52481, link_n: 524288, tu: 64 [ 889.712656] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 1049624, gmch_n: 2097152, link_m: 43734, link_n: 262144, tu: 64 [ 889.712659] [drm:intel_dump_pipe_config] requested mode: [ 889.712665] [drm:drm_mode_debug_printmodeline] Modeline 0:"720x480" 60 27027 720 736 798 858 480 489 495 525 0x40 0xa [ 889.712667] [drm:intel_dump_pipe_config] adjusted mode: [ 889.712673] [drm:drm_mode_debug_printmodeline] Modeline 0:"720x480" 60 27027 720 736 798 858 480 489 495 525 0x40 0xa [ 889.712678] [drm:intel_dump_crtc_timings] crtc timings: 27027 720 736 798 858 480 489 495 525, type: 0x40 flags: 0xa [ 889.712681] [drm:intel_dump_pipe_config] port clock: 162000 [ 889.712685] [drm:intel_dump_pipe_config] pipe src size: 720x480 [ 889.712688] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 889.712692] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 889.712695] [drm:intel_dump_pipe_config] ips: 0 [ 889.712698] [drm:intel_dump_pipe_config] double wide: 0 [ 889.718062] [drm:intel_dp_link_down] [ 889.820965] ------------[ cut here ]------------ [ 889.821002] WARNING: CPU: 0 PID: 4013 at drivers/gpu/drm/i915/intel_display.c:944 intel_wait_for_pipe_off+0x12e/0x135 [i915]() [ 889.821005] pipe_off wait timed out [ 889.821007] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic iTCO_wdt iTCO_vendor_support ppdev dcdbas snd_hda_intel snd_hda_controller pcspkr snd_hda_codec i2c_i801 snd_hwdep snd_pcm lpc_ich mfd_core snd_timer firewire_ohci snd firewire_core crc_itu_t soundcore wmi battery tpm_tis tpm parport_pc parport ac acpi_cpufreq joydev i915 video button drm_kms_helper drm [ 889.821042] CPU: 0 PID: 4013 Comm: testdisplay Tainted: G W 3.15.0-rc3_drm-intel-nightly_2be456_20140514+ #2598 [ 889.821044] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05 08/10/2010 [ 889.821047] 00000000 c16a5021 f4993ccc c102cf1b f8569f80 c2858000 00070008 0008fd6e [ 889.821054] f6175db4 c102cf96 00000009 f4993ccc f85acdb9 f4993ce4 f8569f80 f85ab5ab [ 889.821060] 000003b0 f85acdb9 c2858000 f6175db8 f5bfc000 f856f6da f4993d00 f804c166 [ 889.821066] Call Trace: [ 889.821073] [] ? dump_stack+0x3e/0x4e [ 889.821080] [] ? warn_slowpath_common+0x61/0x74 [ 889.821107] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 889.821110] [] ? warn_slowpath_fmt+0x29/0x2d [ 889.821123] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 889.821136] [] ? ironlake_crtc_disable+0x85/0x713 [i915] [ 889.821143] [] ? drm_ut_debug_printk+0x2c/0x30 [drm] [ 889.821156] [] ? intel_dump_pipe_config+0x29a/0x29f [i915] [ 889.821169] [] ? __intel_set_mode+0xbe7/0xffd [i915] [ 889.821171] [] ? console_unlock+0x309/0x33d [ 889.821173] [] ? wake_up_klogd+0x25/0x26 [ 889.821186] [] ? intel_set_mode+0x11/0x25 [i915] [ 889.821199] [] ? intel_crtc_set_config+0x646/0x8f1 [i915] [ 889.821202] [] ? printk+0x16/0x1a [ 889.821209] [] ? drm_mode_set_config_internal+0x39/0x8a [drm] [ 889.821215] [] ? drm_mode_setcrtc+0x37e/0x408 [drm] [ 889.821222] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 889.821227] [] ? drm_ioctl+0x22e/0x35f [drm] [ 889.821233] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 889.821239] [] ? drm_copy_field+0x47/0x47 [drm] [ 889.821242] [] ? do_vfs_ioctl+0x3fa/0x444 [ 889.821245] [] ? __schedule+0x597/0x6bb [ 889.821248] [] ? vfs_write+0xf8/0x157 [ 889.821250] [] ? SyS_ioctl+0x42/0x6d [ 889.821253] [] ? sysenter_do_call+0x12/0x22 [ 889.821255] ---[ end trace 705caa71d149a4f7 ]--- [ 889.824978] [drm:intel_disable_shared_dpll] disable PCH DPLL A (active 1, on? 1) for crtc 5 [ 889.824987] [drm:intel_disable_shared_dpll] disabling PCH DPLL A [ 889.825404] [drm:intel_update_fbc] no output, disabling [ 889.825420] [drm:intel_get_shared_dpll] CRTC:5 dropping existing PCH DPLL A [ 889.825421] [drm:intel_get_shared_dpll] CRTC:5 using pre-allocated PCH DPLL A [ 889.825423] [drm:intel_get_shared_dpll] using PCH DPLL A for pipe A [ 889.825424] [drm:intel_get_shared_dpll] setting up PCH DPLL A [ 889.825441] [drm:ironlake_update_primary_plane] Writing base 0AA40000 00000000 0 0 2880 [ 889.825445] [drm:intel_crtc_mode_set] [ENCODER:23:TMDS-23] set [MODE:0:720x480] [ 889.825448] [drm:intel_dp_mode_set] Enabling DP audio on pipe A [ 889.825451] [drm:intel_write_eld] ELD on [CONNECTOR:24:DP-1], [ENCODER:23:TMDS-23] [ 889.825452] [drm:ironlake_write_eld] ELD on pipe A [ 889.825455] [drm:ironlake_write_eld] Audio directed to unknown port [ 889.825456] [drm:ironlake_write_eld] ELD: DisplayPort detected [ 889.826320] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x100 [ 889.826321] [drm:ironlake_fdi_link_train] FDI train 1 done. [ 889.826478] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x200 [ 889.826480] [drm:ironlake_fdi_link_train] FDI train 2 done. [ 889.826481] [drm:ironlake_fdi_link_train] FDI train done [ 889.826483] [drm:ironlake_enable_shared_dpll] enable PCH DPLL A (active 0, on? 0)for crtc 5 [ 889.826484] [drm:ironlake_enable_shared_dpll] enabling PCH DPLL A [ 889.828109] [drm:ibx_irq_handler] *ERROR* PCH transcoder A FIFO underrun [ 889.828461] [drm:intel_dp_set_signal_levels] Using signal levels 00000000 [ 889.828938] [drm:intel_dp_start_link_train] clock recovery OK [ 889.829704] [drm:intel_dp_complete_link_train] Channel EQ done. DP Training successful [ 889.846914] [drm:intel_update_fbc] disabled per chip default [ 889.864932] [drm:intel_connector_check_state] [CONNECTOR:24:DP-1] [ 889.864945] [drm:check_encoder_state] [ENCODER:11:DAC-11] [ 889.864950] [drm:check_encoder_state] [ENCODER:12:TMDS-12] [ 889.864954] [drm:check_encoder_state] [ENCODER:21:TMDS-21] [ 889.864959] [drm:check_encoder_state] [ENCODER:23:TMDS-23] [ 889.864965] [drm:check_encoder_state] [ENCODER:25:TMDS-25] [ 889.864970] [drm:check_encoder_state] [ENCODER:27:TMDS-27] [ 889.864975] [drm:check_encoder_state] [ENCODER:29:TMDS-29] [ 889.864980] [drm:check_encoder_state] [ENCODER:31:TMDS-31] [ 889.864984] [drm:check_crtc_state] [CRTC:5] [ 889.865011] [drm:check_crtc_state] [CRTC:8] [ 889.865015] [drm:check_shared_dpll_state] PCH DPLL A [ 889.865022] [drm:check_shared_dpll_state] PCH DPLL B [ 894.868255] [drm:drm_mode_addfb2] [FB:58] [ 894.962657] [drm:drm_mode_setcrtc] [CRTC:5] [ 894.962667] [drm:drm_mode_setcrtc] [CONNECTOR:24:DP-1] [ 894.962673] [drm:intel_crtc_set_config] [CRTC:5] [FB:58] #connectors=1 (x y) (0 0) [ 894.962679] [drm:intel_set_config_compute_mode_changes] modes are different, full mode set [ 894.962686] [drm:drm_mode_debug_printmodeline] Modeline 59:"720x480" 60 27027 720 736 798 858 480 489 495 525 0x40 0xa [ 894.962692] [drm:drm_mode_debug_printmodeline] Modeline 59:"720x480" 60 27000 720 736 798 858 480 489 495 525 0x40 0xa [ 894.962697] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=1, fb_changed=1 [ 894.962702] [drm:intel_modeset_stage_output_state] [CONNECTOR:24:DP-1] to [CRTC:5] [ 894.962707] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 894.962713] [drm:connected_sink_compute_bpp] [CONNECTOR:24:DP-1] checking for sink bpp constrains [ 894.962718] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 0a pixel clock 27000KHz [ 894.962724] [drm:intel_dp_compute_config] DP link bw 06 lane count 1 clock 162000 bpp 24 [ 894.962728] [drm:intel_dp_compute_config] DP link bw required 64800 available 129600 [ 894.962734] [drm:ironlake_check_fdi_lanes] checking fdi config on pipe A, lanes 1 [ 894.962738] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 [ 894.962742] [drm:intel_dump_pipe_config] [CRTC:5][modeset] config for pipe A [ 894.962745] [drm:intel_dump_pipe_config] cpu_transcoder: A [ 894.962748] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 894.962753] [drm:intel_dump_pipe_config] fdi/pch: 1, lanes: 1, gmch_m: 1258291, gmch_n: 4194304, link_m: 52428, link_n: 524288, tu: 64 [ 894.962758] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 1048576, gmch_n: 2097152, link_m: 43690, link_n: 262144, tu: 64 [ 894.962761] [drm:intel_dump_pipe_config] requested mode: [ 894.962767] [drm:drm_mode_debug_printmodeline] Modeline 0:"720x480" 60 27000 720 736 798 858 480 489 495 525 0x40 0xa [ 894.962769] [drm:intel_dump_pipe_config] adjusted mode: [ 894.962775] [drm:drm_mode_debug_printmodeline] Modeline 0:"720x480" 60 27000 720 736 798 858 480 489 495 525 0x40 0xa [ 894.962780] [drm:intel_dump_crtc_timings] crtc timings: 27000 720 736 798 858 480 489 495 525, type: 0x40 flags: 0xa [ 894.962784] [drm:intel_dump_pipe_config] port clock: 162000 [ 894.962787] [drm:intel_dump_pipe_config] pipe src size: 720x480 [ 894.962791] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 894.962794] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 894.962798] [drm:intel_dump_pipe_config] ips: 0 [ 894.962801] [drm:intel_dump_pipe_config] double wide: 0 [ 894.968385] [drm:intel_dp_link_down] [ 895.071201] ------------[ cut here ]------------ [ 895.071241] WARNING: CPU: 1 PID: 4013 at drivers/gpu/drm/i915/intel_display.c:944 intel_wait_for_pipe_off+0x12e/0x135 [i915]() [ 895.071244] pipe_off wait timed out [ 895.071246] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic iTCO_wdt iTCO_vendor_support ppdev dcdbas snd_hda_intel snd_hda_controller pcspkr snd_hda_codec i2c_i801 snd_hwdep snd_pcm lpc_ich mfd_core snd_timer firewire_ohci snd firewire_core crc_itu_t soundcore wmi battery tpm_tis tpm parport_pc parport ac acpi_cpufreq joydev i915 video button drm_kms_helper drm [ 895.071281] CPU: 1 PID: 4013 Comm: testdisplay Tainted: G W 3.15.0-rc3_drm-intel-nightly_2be456_20140514+ #2598 [ 895.071283] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05 08/10/2010 [ 895.071286] 00000000 c16a5021 f4993ccc c102cf1b f8569f80 c2858000 00070008 000911ed [ 895.071293] f6175db4 c102cf96 00000009 f4993ccc f85acdb9 f4993ce4 f8569f80 f85ab5ab [ 895.071299] 000003b0 f85acdb9 c2858000 f6175db8 f5bfc000 f856f6da f4993d00 f804c166 [ 895.071306] Call Trace: [ 895.071313] [] ? dump_stack+0x3e/0x4e [ 895.071321] [] ? warn_slowpath_common+0x61/0x74 [ 895.071347] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 895.071352] [] ? warn_slowpath_fmt+0x29/0x2d [ 895.071378] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 895.071404] [] ? ironlake_crtc_disable+0x85/0x713 [i915] [ 895.071418] [] ? drm_ut_debug_printk+0x2c/0x30 [drm] [ 895.071444] [] ? intel_dump_pipe_config+0x29a/0x29f [i915] [ 895.071469] [] ? __intel_set_mode+0xbe7/0xffd [i915] [ 895.071474] [] ? console_unlock+0x309/0x33d [ 895.071478] [] ? wake_up_klogd+0x25/0x26 [ 895.071504] [] ? intel_set_mode+0x11/0x25 [i915] [ 895.071529] [] ? intel_crtc_set_config+0x646/0x8f1 [i915] [ 895.071536] [] ? printk+0x16/0x1a [ 895.071550] [] ? drm_mode_set_config_internal+0x39/0x8a [drm] [ 895.071563] [] ? drm_mode_setcrtc+0x37e/0x408 [drm] [ 895.071576] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 895.071586] [] ? drm_ioctl+0x22e/0x35f [drm] [ 895.071599] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 895.071611] [] ? drm_copy_field+0x47/0x47 [drm] [ 895.071618] [] ? do_vfs_ioctl+0x3fa/0x444 [ 895.071623] [] ? __schedule+0x597/0x6bb [ 895.071628] [] ? vfs_write+0xf8/0x157 [ 895.071632] [] ? SyS_ioctl+0x42/0x6d [ 895.071637] [] ? sysenter_do_call+0x12/0x22 [ 895.071640] ---[ end trace 705caa71d149a4f8 ]--- [ 895.075241] [drm:intel_disable_shared_dpll] disable PCH DPLL A (active 1, on? 1) for crtc 5 [ 895.075250] [drm:intel_disable_shared_dpll] disabling PCH DPLL A [ 895.075672] [drm:intel_update_fbc] no output, disabling [ 895.075702] [drm:intel_get_shared_dpll] CRTC:5 dropping existing PCH DPLL A [ 895.075705] [drm:intel_get_shared_dpll] CRTC:5 using pre-allocated PCH DPLL A [ 895.075708] [drm:intel_get_shared_dpll] using PCH DPLL A for pipe A [ 895.075710] [drm:intel_get_shared_dpll] setting up PCH DPLL A [ 895.075730] [drm:ironlake_update_primary_plane] Writing base 0AB92000 00000000 0 0 2880 [ 895.075737] [drm:intel_crtc_mode_set] [ENCODER:23:TMDS-23] set [MODE:0:720x480] [ 895.075742] [drm:intel_dp_mode_set] Enabling DP audio on pipe A [ 895.075746] [drm:intel_write_eld] ELD on [CONNECTOR:24:DP-1], [ENCODER:23:TMDS-23] [ 895.075749] [drm:ironlake_write_eld] ELD on pipe A [ 895.075752] [drm:ironlake_write_eld] Audio directed to unknown port [ 895.075755] [drm:ironlake_write_eld] ELD: DisplayPort detected [ 895.076624] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x100 [ 895.076627] [drm:ironlake_fdi_link_train] FDI train 1 done. [ 895.076785] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x200 [ 895.076787] [drm:ironlake_fdi_link_train] FDI train 2 done. [ 895.076789] [drm:ironlake_fdi_link_train] FDI train done [ 895.076793] [drm:ironlake_enable_shared_dpll] enable PCH DPLL A (active 0, on? 0)for crtc 5 [ 895.076795] [drm:ironlake_enable_shared_dpll] enabling PCH DPLL A [ 895.078424] [drm:ibx_irq_handler] *ERROR* PCH transcoder A FIFO underrun [ 895.078727] [drm:intel_dp_set_signal_levels] Using signal levels 00000000 [ 895.079189] [drm:intel_dp_start_link_train] clock recovery OK [ 895.079950] [drm:intel_dp_complete_link_train] Channel EQ done. DP Training successful [ 895.097182] [drm:intel_update_fbc] disabled per chip default [ 895.115241] [drm:intel_connector_check_state] [CONNECTOR:24:DP-1] [ 895.115256] [drm:check_encoder_state] [ENCODER:11:DAC-11] [ 895.115262] [drm:check_encoder_state] [ENCODER:12:TMDS-12] [ 895.115266] [drm:check_encoder_state] [ENCODER:21:TMDS-21] [ 895.115272] [drm:check_encoder_state] [ENCODER:23:TMDS-23] [ 895.115277] [drm:check_encoder_state] [ENCODER:25:TMDS-25] [ 895.115282] [drm:check_encoder_state] [ENCODER:27:TMDS-27] [ 895.115287] [drm:check_encoder_state] [ENCODER:29:TMDS-29] [ 895.115291] [drm:check_encoder_state] [ENCODER:31:TMDS-31] [ 895.115296] [drm:check_crtc_state] [CRTC:5] [ 895.115326] [drm:check_crtc_state] [CRTC:8] [ 895.115330] [drm:check_shared_dpll_state] PCH DPLL A [ 895.115337] [drm:check_shared_dpll_state] PCH DPLL B [ 900.118569] [drm:drm_mode_addfb2] [FB:57] [ 900.209371] [drm:drm_mode_setcrtc] [CRTC:5] [ 900.209381] [drm:drm_mode_setcrtc] [CONNECTOR:24:DP-1] [ 900.209386] [drm:intel_crtc_set_config] [CRTC:5] [FB:57] #connectors=1 (x y) (0 0) [ 900.209393] [drm:intel_set_config_compute_mode_changes] modes are different, full mode set [ 900.209399] [drm:drm_mode_debug_printmodeline] Modeline 59:"720x480" 60 27000 720 736 798 858 480 489 495 525 0x40 0xa [ 900.209406] [drm:drm_mode_debug_printmodeline] Modeline 59:"640x480" 75 31500 640 656 720 840 480 481 484 500 0x40 0xa [ 900.209410] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=1, fb_changed=1 [ 900.209415] [drm:intel_modeset_stage_output_state] [CONNECTOR:24:DP-1] to [CRTC:5] [ 900.209420] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 900.209425] [drm:connected_sink_compute_bpp] [CONNECTOR:24:DP-1] checking for sink bpp constrains [ 900.209431] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 0a pixel clock 31500KHz [ 900.209441] [drm:intel_dp_compute_config] DP link bw 06 lane count 1 clock 162000 bpp 24 [ 900.209445] [drm:intel_dp_compute_config] DP link bw required 75600 available 129600 [ 900.209451] [drm:ironlake_check_fdi_lanes] checking fdi config on pipe A, lanes 1 [ 900.209455] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 [ 900.209458] [drm:intel_dump_pipe_config] [CRTC:5][modeset] config for pipe A [ 900.209461] [drm:intel_dump_pipe_config] cpu_transcoder: A [ 900.209465] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 900.209470] [drm:intel_dump_pipe_config] fdi/pch: 1, lanes: 1, gmch_m: 1468006, gmch_n: 4194304, link_m: 61166, link_n: 524288, tu: 64 [ 900.209475] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 1223338, gmch_n: 2097152, link_m: 50972, link_n: 262144, tu: 64 [ 900.209478] [drm:intel_dump_pipe_config] requested mode: [ 900.209484] [drm:drm_mode_debug_printmodeline] Modeline 0:"640x480" 75 31500 640 656 720 840 480 481 484 500 0x40 0xa [ 900.209486] [drm:intel_dump_pipe_config] adjusted mode: [ 900.209492] [drm:drm_mode_debug_printmodeline] Modeline 0:"640x480" 75 31500 640 656 720 840 480 481 484 500 0x40 0xa [ 900.209497] [drm:intel_dump_crtc_timings] crtc timings: 31500 640 656 720 840 480 481 484 500, type: 0x40 flags: 0xa [ 900.209501] [drm:intel_dump_pipe_config] port clock: 162000 [ 900.209504] [drm:intel_dump_pipe_config] pipe src size: 640x480 [ 900.209510] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 900.209511] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 900.209513] [drm:intel_dump_pipe_config] ips: 0 [ 900.209514] [drm:intel_dump_pipe_config] double wide: 0 [ 900.223585] [drm:intel_dp_link_down] [ 900.326440] ------------[ cut here ]------------ [ 900.326479] WARNING: CPU: 1 PID: 4013 at drivers/gpu/drm/i915/intel_display.c:944 intel_wait_for_pipe_off+0x12e/0x135 [i915]() [ 900.326482] pipe_off wait timed out [ 900.326483] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic iTCO_wdt iTCO_vendor_support ppdev dcdbas snd_hda_intel snd_hda_controller pcspkr snd_hda_codec i2c_i801 snd_hwdep snd_pcm lpc_ich mfd_core snd_timer firewire_ohci snd firewire_core crc_itu_t soundcore wmi battery tpm_tis tpm parport_pc parport ac acpi_cpufreq joydev i915 video button drm_kms_helper drm [ 900.326518] CPU: 1 PID: 4013 Comm: testdisplay Tainted: G W 3.15.0-rc3_drm-intel-nightly_2be456_20140514+ #2598 [ 900.326521] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05 08/10/2010 [ 900.326523] 00000000 c16a5021 f4993ccc c102cf1b f8569f80 c2858000 00070008 00092671 [ 900.326530] f6175db4 c102cf96 00000009 f4993ccc f85acdb9 f4993ce4 f8569f80 f85ab5ab [ 900.326536] 000003b0 f85acdb9 c2858000 f6175db8 f5bfc000 f856f6da f4993d00 f804c166 [ 900.326543] Call Trace: [ 900.326550] [] ? dump_stack+0x3e/0x4e [ 900.326557] [] ? warn_slowpath_common+0x61/0x74 [ 900.326582] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 900.326588] [] ? warn_slowpath_fmt+0x29/0x2d [ 900.326614] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 900.326641] [] ? ironlake_crtc_disable+0x85/0x713 [i915] [ 900.326654] [] ? drm_ut_debug_printk+0x2c/0x30 [drm] [ 900.326680] [] ? intel_dump_pipe_config+0x29a/0x29f [i915] [ 900.326705] [] ? __intel_set_mode+0xbe7/0xffd [i915] [ 900.326710] [] ? console_unlock+0x309/0x33d [ 900.326714] [] ? wake_up_klogd+0x25/0x26 [ 900.326740] [] ? intel_set_mode+0x11/0x25 [i915] [ 900.326765] [] ? intel_crtc_set_config+0x646/0x8f1 [i915] [ 900.326771] [] ? printk+0x16/0x1a [ 900.326785] [] ? drm_mode_set_config_internal+0x39/0x8a [drm] [ 900.326798] [] ? drm_mode_setcrtc+0x37e/0x408 [drm] [ 900.326811] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 900.326821] [] ? drm_ioctl+0x22e/0x35f [drm] [ 900.326834] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 900.326846] [] ? drm_copy_field+0x47/0x47 [drm] [ 900.326851] [] ? do_vfs_ioctl+0x3fa/0x444 [ 900.326856] [] ? __schedule+0x597/0x6bb [ 900.326860] [] ? vfs_write+0xf8/0x157 [ 900.326865] [] ? SyS_ioctl+0x42/0x6d [ 900.326869] [] ? sysenter_do_call+0x12/0x22 [ 900.326872] ---[ end trace 705caa71d149a4f9 ]--- [ 900.330480] [drm:intel_disable_shared_dpll] disable PCH DPLL A (active 1, on? 1) for crtc 5 [ 900.330489] [drm:intel_disable_shared_dpll] disabling PCH DPLL A [ 900.330908] [drm:intel_update_fbc] no output, disabling [ 900.330938] [drm:intel_get_shared_dpll] CRTC:5 dropping existing PCH DPLL A [ 900.330941] [drm:intel_get_shared_dpll] CRTC:5 using pre-allocated PCH DPLL A [ 900.330944] [drm:intel_get_shared_dpll] using PCH DPLL A for pipe A [ 900.330946] [drm:intel_get_shared_dpll] setting up PCH DPLL A [ 900.330966] [drm:ironlake_update_primary_plane] Writing base 0ACE4000 00000000 0 0 2560 [ 900.330973] [drm:intel_crtc_mode_set] [ENCODER:23:TMDS-23] set [MODE:0:640x480] [ 900.330978] [drm:intel_dp_mode_set] Enabling DP audio on pipe A [ 900.330982] [drm:intel_write_eld] ELD on [CONNECTOR:24:DP-1], [ENCODER:23:TMDS-23] [ 900.330985] [drm:ironlake_write_eld] ELD on pipe A [ 900.330988] [drm:ironlake_write_eld] Audio directed to unknown port [ 900.330990] [drm:ironlake_write_eld] ELD: DisplayPort detected [ 900.331860] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x100 [ 900.331863] [drm:ironlake_fdi_link_train] FDI train 1 done. [ 900.332021] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x200 [ 900.332024] [drm:ironlake_fdi_link_train] FDI train 2 done. [ 900.332026] [drm:ironlake_fdi_link_train] FDI train done [ 900.332030] [drm:ironlake_enable_shared_dpll] enable PCH DPLL A (active 0, on? 0)for crtc 5 [ 900.332032] [drm:ironlake_enable_shared_dpll] enabling PCH DPLL A [ 900.333530] [drm:ibx_irq_handler] *ERROR* PCH transcoder A FIFO underrun [ 900.333968] [drm:intel_dp_set_signal_levels] Using signal levels 00000000 [ 900.334426] [drm:intel_dp_start_link_train] clock recovery OK [ 900.335194] [drm:intel_dp_complete_link_train] Channel EQ done. DP Training successful [ 900.350388] [drm:intel_update_fbc] disabled per chip default [ 900.362403] [drm:intel_connector_check_state] [CONNECTOR:24:DP-1] [ 900.362416] [drm:check_encoder_state] [ENCODER:11:DAC-11] [ 900.362422] [drm:check_encoder_state] [ENCODER:12:TMDS-12] [ 900.362426] [drm:check_encoder_state] [ENCODER:21:TMDS-21] [ 900.362431] [drm:check_encoder_state] [ENCODER:23:TMDS-23] [ 900.362436] [drm:check_encoder_state] [ENCODER:25:TMDS-25] [ 900.362441] [drm:check_encoder_state] [ENCODER:27:TMDS-27] [ 900.362446] [drm:check_encoder_state] [ENCODER:29:TMDS-29] [ 900.362451] [drm:check_encoder_state] [ENCODER:31:TMDS-31] [ 900.362456] [drm:check_crtc_state] [CRTC:5] [ 900.362487] [drm:check_crtc_state] [CRTC:8] [ 900.362489] [drm:check_shared_dpll_state] PCH DPLL A [ 900.362495] [drm:check_shared_dpll_state] PCH DPLL B [ 905.365763] [drm:drm_mode_addfb2] [FB:58] [ 905.458361] [drm:drm_mode_setcrtc] [CRTC:5] [ 905.458371] [drm:drm_mode_setcrtc] [CONNECTOR:24:DP-1] [ 905.458376] [drm:intel_crtc_set_config] [CRTC:5] [FB:58] #connectors=1 (x y) (0 0) [ 905.458383] [drm:intel_set_config_compute_mode_changes] modes are different, full mode set [ 905.458390] [drm:drm_mode_debug_printmodeline] Modeline 59:"640x480" 75 31500 640 656 720 840 480 481 484 500 0x40 0xa [ 905.458396] [drm:drm_mode_debug_printmodeline] Modeline 59:"640x480" 60 25200 640 656 752 800 480 490 492 525 0x40 0xa [ 905.458400] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=1, fb_changed=1 [ 905.458405] [drm:intel_modeset_stage_output_state] [CONNECTOR:24:DP-1] to [CRTC:5] [ 905.458411] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 905.458416] [drm:connected_sink_compute_bpp] [CONNECTOR:24:DP-1] checking for sink bpp constrains [ 905.458422] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 0a pixel clock 25200KHz [ 905.458428] [drm:intel_dp_compute_config] DP link bw 06 lane count 1 clock 162000 bpp 24 [ 905.458433] [drm:intel_dp_compute_config] DP link bw required 60480 available 129600 [ 905.458439] [drm:ironlake_check_fdi_lanes] checking fdi config on pipe A, lanes 1 [ 905.458443] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 [ 905.458447] [drm:intel_dump_pipe_config] [CRTC:5][modeset] config for pipe A [ 905.458449] [drm:intel_dump_pipe_config] cpu_transcoder: A [ 905.458453] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 905.458458] [drm:intel_dump_pipe_config] fdi/pch: 1, lanes: 1, gmch_m: 1174405, gmch_n: 4194304, link_m: 48933, link_n: 524288, tu: 64 [ 905.458463] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 978670, gmch_n: 2097152, link_m: 40777, link_n: 262144, tu: 64 [ 905.458465] [drm:intel_dump_pipe_config] requested mode: [ 905.458471] [drm:drm_mode_debug_printmodeline] Modeline 0:"640x480" 60 25200 640 656 752 800 480 490 492 525 0x40 0xa [ 905.458474] [drm:intel_dump_pipe_config] adjusted mode: [ 905.458480] [drm:drm_mode_debug_printmodeline] Modeline 0:"640x480" 60 25200 640 656 752 800 480 490 492 525 0x40 0xa [ 905.458485] [drm:intel_dump_crtc_timings] crtc timings: 25200 640 656 752 800 480 490 492 525, type: 0x40 flags: 0xa [ 905.458488] [drm:intel_dump_pipe_config] port clock: 162000 [ 905.458491] [drm:intel_dump_pipe_config] pipe src size: 640x480 [ 905.458495] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 905.458499] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 905.458502] [drm:intel_dump_pipe_config] ips: 0 [ 905.458505] [drm:intel_dump_pipe_config] double wide: 0 [ 905.473822] [drm:intel_dp_link_down] [ 905.576673] ------------[ cut here ]------------ [ 905.576713] WARNING: CPU: 1 PID: 4013 at drivers/gpu/drm/i915/intel_display.c:944 intel_wait_for_pipe_off+0x12e/0x135 [i915]() [ 905.576716] pipe_off wait timed out [ 905.576718] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic iTCO_wdt iTCO_vendor_support ppdev dcdbas snd_hda_intel snd_hda_controller pcspkr snd_hda_codec i2c_i801 snd_hwdep snd_pcm lpc_ich mfd_core snd_timer firewire_ohci snd firewire_core crc_itu_t soundcore wmi battery tpm_tis tpm parport_pc parport ac acpi_cpufreq joydev i915 video button drm_kms_helper drm [ 905.576754] CPU: 1 PID: 4013 Comm: testdisplay Tainted: G W 3.15.0-rc3_drm-intel-nightly_2be456_20140514+ #2598 [ 905.576756] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05 08/10/2010 [ 905.576759] 00000000 c16a5021 f4993ccc c102cf1b f8569f80 c2858000 00070008 00093af0 [ 905.576766] f6175db4 c102cf96 00000009 f4993ccc f85acdb9 f4993ce4 f8569f80 f85ab5ab [ 905.576772] 000003b0 f85acdb9 c2858000 f6175db8 f5bfc000 f856f6da f4993d00 f804c166 [ 905.576779] Call Trace: [ 905.576787] [] ? dump_stack+0x3e/0x4e [ 905.576795] [] ? warn_slowpath_common+0x61/0x74 [ 905.576821] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 905.576826] [] ? warn_slowpath_fmt+0x29/0x2d [ 905.576852] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 905.576917] [] ? ironlake_crtc_disable+0x85/0x713 [i915] [ 905.576931] [] ? drm_ut_debug_printk+0x2c/0x30 [drm] [ 905.576957] [] ? intel_dump_pipe_config+0x29a/0x29f [i915] [ 905.576982] [] ? __intel_set_mode+0xbe7/0xffd [i915] [ 905.576987] [] ? console_unlock+0x309/0x33d [ 905.576991] [] ? wake_up_klogd+0x25/0x26 [ 905.577017] [] ? intel_set_mode+0x11/0x25 [i915] [ 905.577042] [] ? intel_crtc_set_config+0x646/0x8f1 [i915] [ 905.577048] [] ? printk+0x16/0x1a [ 905.577063] [] ? drm_mode_set_config_internal+0x39/0x8a [drm] [ 905.577076] [] ? drm_mode_setcrtc+0x37e/0x408 [drm] [ 905.577089] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 905.577099] [] ? drm_ioctl+0x22e/0x35f [drm] [ 905.577112] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 905.577124] [] ? drm_copy_field+0x47/0x47 [drm] [ 905.577131] [] ? do_vfs_ioctl+0x3fa/0x444 [ 905.577135] [] ? __schedule+0x597/0x6bb [ 905.577140] [] ? vfs_write+0xf8/0x157 [ 905.577145] [] ? SyS_ioctl+0x42/0x6d [ 905.577150] [] ? sysenter_do_call+0x12/0x22 [ 905.577153] ---[ end trace 705caa71d149a4fa ]--- [ 905.578675] [drm:intel_disable_shared_dpll] disable PCH DPLL A (active 1, on? 1) for crtc 5 [ 905.578681] [drm:intel_disable_shared_dpll] disabling PCH DPLL A [ 905.579099] [drm:intel_update_fbc] no output, disabling [ 905.579117] [drm:intel_get_shared_dpll] CRTC:5 dropping existing PCH DPLL A [ 905.579118] [drm:intel_get_shared_dpll] CRTC:5 using pre-allocated PCH DPLL A [ 905.579120] [drm:intel_get_shared_dpll] using PCH DPLL A for pipe A [ 905.579121] [drm:intel_get_shared_dpll] setting up PCH DPLL A [ 905.579138] [drm:ironlake_update_primary_plane] Writing base 0AE10000 00000000 0 0 2560 [ 905.579143] [drm:intel_crtc_mode_set] [ENCODER:23:TMDS-23] set [MODE:0:640x480] [ 905.579146] [drm:intel_dp_mode_set] Enabling DP audio on pipe A [ 905.579150] [drm:intel_write_eld] ELD on [CONNECTOR:24:DP-1], [ENCODER:23:TMDS-23] [ 905.579151] [drm:ironlake_write_eld] ELD on pipe A [ 905.579154] [drm:ironlake_write_eld] Audio directed to unknown port [ 905.579155] [drm:ironlake_write_eld] ELD: DisplayPort detected [ 905.580023] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x100 [ 905.580027] [drm:ironlake_fdi_link_train] FDI train 1 done. [ 905.580185] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x200 [ 905.580188] [drm:ironlake_fdi_link_train] FDI train 2 done. [ 905.580191] [drm:ironlake_fdi_link_train] FDI train done [ 905.580195] [drm:ironlake_enable_shared_dpll] enable PCH DPLL A (active 0, on? 0)for crtc 5 [ 905.580199] [drm:ironlake_enable_shared_dpll] enabling PCH DPLL A [ 905.581814] [drm:ibx_irq_handler] *ERROR* PCH transcoder A FIFO underrun [ 905.582161] [drm:intel_dp_set_signal_levels] Using signal levels 00000000 [ 905.582623] [drm:intel_dp_start_link_train] clock recovery OK [ 905.583390] [drm:intel_dp_complete_link_train] Channel EQ done. DP Training successful [ 905.600695] [drm:intel_update_fbc] disabled per chip default [ 905.618651] [drm:intel_connector_check_state] [CONNECTOR:24:DP-1] [ 905.618665] [drm:check_encoder_state] [ENCODER:11:DAC-11] [ 905.618671] [drm:check_encoder_state] [ENCODER:12:TMDS-12] [ 905.618675] [drm:check_encoder_state] [ENCODER:21:TMDS-21] [ 905.618680] [drm:check_encoder_state] [ENCODER:23:TMDS-23] [ 905.618689] [drm:check_encoder_state] [ENCODER:25:TMDS-25] [ 905.618693] [drm:check_encoder_state] [ENCODER:27:TMDS-27] [ 905.618697] [drm:check_encoder_state] [ENCODER:29:TMDS-29] [ 905.618701] [drm:check_encoder_state] [ENCODER:31:TMDS-31] [ 905.618704] [drm:check_crtc_state] [CRTC:5] [ 905.618734] [drm:check_crtc_state] [CRTC:8] [ 905.618737] [drm:check_shared_dpll_state] PCH DPLL A [ 905.618743] [drm:check_shared_dpll_state] PCH DPLL B [ 910.621985] [drm:drm_mode_addfb2] [FB:57] [ 910.713551] [drm:drm_mode_setcrtc] [CRTC:5] [ 910.713563] [drm:drm_mode_setcrtc] [CONNECTOR:24:DP-1] [ 910.713570] [drm:intel_crtc_set_config] [CRTC:5] [FB:57] #connectors=1 (x y) (0 0) [ 910.713577] [drm:intel_set_config_compute_mode_changes] modes are different, full mode set [ 910.713585] [drm:drm_mode_debug_printmodeline] Modeline 59:"640x480" 60 25200 640 656 752 800 480 490 492 525 0x40 0xa [ 910.713594] [drm:drm_mode_debug_printmodeline] Modeline 59:"640x480" 60 25175 640 656 752 800 480 490 492 525 0x40 0xa [ 910.713600] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=1, fb_changed=1 [ 910.713607] [drm:intel_modeset_stage_output_state] [CONNECTOR:24:DP-1] to [CRTC:5] [ 910.713615] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 910.713622] [drm:connected_sink_compute_bpp] [CONNECTOR:24:DP-1] checking for sink bpp constrains [ 910.713630] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 0a pixel clock 25175KHz [ 910.713637] [drm:intel_dp_compute_config] DP link bw 06 lane count 1 clock 162000 bpp 24 [ 910.713642] [drm:intel_dp_compute_config] DP link bw required 60420 available 129600 [ 910.713649] [drm:ironlake_check_fdi_lanes] checking fdi config on pipe A, lanes 1 [ 910.713654] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 [ 910.713659] [drm:intel_dump_pipe_config] [CRTC:5][modeset] config for pipe A [ 910.713663] [drm:intel_dump_pipe_config] cpu_transcoder: A [ 910.713668] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 910.713675] [drm:intel_dump_pipe_config] fdi/pch: 1, lanes: 1, gmch_m: 1173240, gmch_n: 4194304, link_m: 48885, link_n: 524288, tu: 64 [ 910.713682] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 977700, gmch_n: 2097152, link_m: 40737, link_n: 262144, tu: 64 [ 910.713686] [drm:intel_dump_pipe_config] requested mode: [ 910.713694] [drm:drm_mode_debug_printmodeline] Modeline 0:"640x480" 60 25175 640 656 752 800 480 490 492 525 0x40 0xa [ 910.713697] [drm:intel_dump_pipe_config] adjusted mode: [ 910.713703] [drm:drm_mode_debug_printmodeline] Modeline 0:"640x480" 60 25175 640 656 752 800 480 490 492 525 0x40 0xa [ 910.713708] [drm:intel_dump_crtc_timings] crtc timings: 25175 640 656 752 800 480 490 492 525, type: 0x40 flags: 0xa [ 910.713711] [drm:intel_dump_pipe_config] port clock: 162000 [ 910.713714] [drm:intel_dump_pipe_config] pipe src size: 640x480 [ 910.713718] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 910.713722] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 910.713725] [drm:intel_dump_pipe_config] ips: 0 [ 910.713728] [drm:intel_dump_pipe_config] double wide: 0 [ 910.721050] [drm:intel_dp_link_down] [ 910.823913] ------------[ cut here ]------------ [ 910.823958] WARNING: CPU: 1 PID: 4013 at drivers/gpu/drm/i915/intel_display.c:944 intel_wait_for_pipe_off+0x12e/0x135 [i915]() [ 910.823962] pipe_off wait timed out [ 910.823964] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic iTCO_wdt iTCO_vendor_support ppdev dcdbas snd_hda_intel snd_hda_controller pcspkr snd_hda_codec i2c_i801 snd_hwdep snd_pcm lpc_ich mfd_core snd_timer firewire_ohci snd firewire_core crc_itu_t soundcore wmi battery tpm_tis tpm parport_pc parport ac acpi_cpufreq joydev i915 video button drm_kms_helper drm [ 910.824006] CPU: 1 PID: 4013 Comm: testdisplay Tainted: G W 3.15.0-rc3_drm-intel-nightly_2be456_20140514+ #2598 [ 910.824009] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05 08/10/2010 [ 910.824012] 00000000 c16a5021 f4993ccc c102cf1b f8569f80 c2858000 00070008 00094f6c [ 910.824021] f6175db4 c102cf96 00000009 f4993ccc f85acdb9 f4993ce4 f8569f80 f85ab5ab [ 910.824029] 000003b0 f85acdb9 c2858000 f6175db8 f5bfc000 f856f6da f4993d00 f804c166 [ 910.824037] Call Trace: [ 910.824045] [] ? dump_stack+0x3e/0x4e [ 910.824053] [] ? warn_slowpath_common+0x61/0x74 [ 910.824084] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 910.824091] [] ? warn_slowpath_fmt+0x29/0x2d [ 910.824122] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 910.824154] [] ? ironlake_crtc_disable+0x85/0x713 [i915] [ 910.824170] [] ? drm_ut_debug_printk+0x2c/0x30 [drm] [ 910.824202] [] ? intel_dump_pipe_config+0x29a/0x29f [i915] [ 910.824233] [] ? __intel_set_mode+0xbe7/0xffd [i915] [ 910.824239] [] ? console_unlock+0x309/0x33d [ 910.824244] [] ? wake_up_klogd+0x25/0x26 [ 910.824275] [] ? intel_set_mode+0x11/0x25 [i915] [ 910.824306] [] ? intel_crtc_set_config+0x646/0x8f1 [i915] [ 910.824312] [] ? printk+0x16/0x1a [ 910.824329] [] ? drm_mode_set_config_internal+0x39/0x8a [drm] [ 910.824345] [] ? drm_mode_setcrtc+0x37e/0x408 [drm] [ 910.824361] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 910.824373] [] ? drm_ioctl+0x22e/0x35f [drm] [ 910.824389] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 910.824403] [] ? drm_copy_field+0x47/0x47 [drm] [ 910.824410] [] ? do_vfs_ioctl+0x3fa/0x444 [ 910.824415] [] ? __schedule+0x597/0x6bb [ 910.824421] [] ? vfs_write+0xf8/0x157 [ 910.824427] [] ? SyS_ioctl+0x42/0x6d [ 910.824433] [] ? sysenter_do_call+0x12/0x22 [ 910.824436] ---[ end trace 705caa71d149a4fb ]--- [ 910.825858] [drm:intel_disable_shared_dpll] disable PCH DPLL A (active 1, on? 1) for crtc 5 [ 910.825865] [drm:intel_disable_shared_dpll] disabling PCH DPLL A [ 910.826280] [drm:intel_update_fbc] no output, disabling [ 910.826297] [drm:intel_get_shared_dpll] CRTC:5 dropping existing PCH DPLL A [ 910.826298] [drm:intel_get_shared_dpll] CRTC:5 using pre-allocated PCH DPLL A [ 910.826300] [drm:intel_get_shared_dpll] using PCH DPLL A for pipe A [ 910.826301] [drm:intel_get_shared_dpll] setting up PCH DPLL A [ 910.826318] [drm:ironlake_update_primary_plane] Writing base 0AF3C000 00000000 0 0 2560 [ 910.826323] [drm:intel_crtc_mode_set] [ENCODER:23:TMDS-23] set [MODE:0:640x480] [ 910.826326] [drm:intel_dp_mode_set] Enabling DP audio on pipe A [ 910.826328] [drm:intel_write_eld] ELD on [CONNECTOR:24:DP-1], [ENCODER:23:TMDS-23] [ 910.826330] [drm:ironlake_write_eld] ELD on pipe A [ 910.826333] [drm:ironlake_write_eld] Audio directed to unknown port [ 910.826334] [drm:ironlake_write_eld] ELD: DisplayPort detected [ 910.827196] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x100 [ 910.827200] [drm:ironlake_fdi_link_train] FDI train 1 done. [ 910.827358] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x200 [ 910.827361] [drm:ironlake_fdi_link_train] FDI train 2 done. [ 910.827364] [drm:ironlake_fdi_link_train] FDI train done [ 910.827368] [drm:ironlake_enable_shared_dpll] enable PCH DPLL A (active 0, on? 0)for crtc 5 [ 910.827371] [drm:ironlake_enable_shared_dpll] enabling PCH DPLL A [ 910.828985] [drm:ibx_irq_handler] *ERROR* PCH transcoder A FIFO underrun [ 910.829338] [drm:intel_dp_set_signal_levels] Using signal levels 00000000 [ 910.829793] [drm:intel_dp_start_link_train] clock recovery OK [ 910.830568] [drm:intel_dp_complete_link_train] Channel EQ done. DP Training successful [ 910.847932] [drm:intel_update_fbc] disabled per chip default [ 910.865956] [drm:intel_connector_check_state] [CONNECTOR:24:DP-1] [ 910.865970] [drm:check_encoder_state] [ENCODER:11:DAC-11] [ 910.865976] [drm:check_encoder_state] [ENCODER:12:TMDS-12] [ 910.865980] [drm:check_encoder_state] [ENCODER:21:TMDS-21] [ 910.865986] [drm:check_encoder_state] [ENCODER:23:TMDS-23] [ 910.865991] [drm:check_encoder_state] [ENCODER:25:TMDS-25] [ 910.865996] [drm:check_encoder_state] [ENCODER:27:TMDS-27] [ 910.866002] [drm:check_encoder_state] [ENCODER:29:TMDS-29] [ 910.866007] [drm:check_encoder_state] [ENCODER:31:TMDS-31] [ 910.866011] [drm:check_crtc_state] [CRTC:5] [ 910.866041] [drm:check_crtc_state] [CRTC:8] [ 910.866045] [drm:check_shared_dpll_state] PCH DPLL A [ 910.866052] [drm:check_shared_dpll_state] PCH DPLL B [ 915.869297] [drm:drm_mode_addfb2] [FB:58] [ 915.940791] [drm:drm_mode_setcrtc] [CRTC:5] [ 915.940801] [drm:drm_mode_setcrtc] [CONNECTOR:24:DP-1] [ 915.940806] [drm:intel_crtc_set_config] [CRTC:5] [FB:58] #connectors=1 (x y) (0 0) [ 915.940812] [drm:intel_set_config_compute_mode_changes] modes are different, full mode set [ 915.940819] [drm:drm_mode_debug_printmodeline] Modeline 59:"640x480" 60 25175 640 656 752 800 480 490 492 525 0x40 0xa [ 915.940825] [drm:drm_mode_debug_printmodeline] Modeline 59:"720x400" 70 28320 720 738 846 900 400 412 414 449 0x40 0x6 [ 915.940829] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=1, fb_changed=1 [ 915.940834] [drm:intel_modeset_stage_output_state] [CONNECTOR:24:DP-1] to [CRTC:5] [ 915.940839] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 915.940845] [drm:connected_sink_compute_bpp] [CONNECTOR:24:DP-1] checking for sink bpp constrains [ 915.940851] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 0a pixel clock 28320KHz [ 915.940860] [drm:intel_dp_compute_config] DP link bw 06 lane count 1 clock 162000 bpp 24 [ 915.940864] [drm:intel_dp_compute_config] DP link bw required 67968 available 129600 [ 915.940870] [drm:ironlake_check_fdi_lanes] checking fdi config on pipe A, lanes 1 [ 915.940874] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 [ 915.940878] [drm:intel_dump_pipe_config] [CRTC:5][modeset] config for pipe A [ 915.940881] [drm:intel_dump_pipe_config] cpu_transcoder: A [ 915.940884] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 915.940889] [drm:intel_dump_pipe_config] fdi/pch: 1, lanes: 1, gmch_m: 1319807, gmch_n: 4194304, link_m: 54991, link_n: 524288, tu: 64 [ 915.940894] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 1099839, gmch_n: 2097152, link_m: 45826, link_n: 262144, tu: 64 [ 915.940897] [drm:intel_dump_pipe_config] requested mode: [ 915.940903] [drm:drm_mode_debug_printmodeline] Modeline 0:"720x400" 70 28320 720 738 846 900 400 412 414 449 0x40 0x6 [ 915.940906] [drm:intel_dump_pipe_config] adjusted mode: [ 915.940911] [drm:drm_mode_debug_printmodeline] Modeline 0:"720x400" 70 28320 720 738 846 900 400 412 414 449 0x40 0x6 [ 915.940917] [drm:intel_dump_crtc_timings] crtc timings: 28320 720 738 846 900 400 412 414 449, type: 0x40 flags: 0x6 [ 915.940920] [drm:intel_dump_pipe_config] port clock: 162000 [ 915.940923] [drm:intel_dump_pipe_config] pipe src size: 720x400 [ 915.940927] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 915.940931] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 915.940934] [drm:intel_dump_pipe_config] ips: 0 [ 915.940937] [drm:intel_dump_pipe_config] double wide: 0 [ 915.956281] [drm:intel_dp_link_down] [ 916.059136] ------------[ cut here ]------------ [ 916.059173] WARNING: CPU: 1 PID: 4013 at drivers/gpu/drm/i915/intel_display.c:944 intel_wait_for_pipe_off+0x12e/0x135 [i915]() [ 916.059176] pipe_off wait timed out [ 916.059178] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic iTCO_wdt iTCO_vendor_support ppdev dcdbas snd_hda_intel snd_hda_controller pcspkr snd_hda_codec i2c_i801 snd_hwdep snd_pcm lpc_ich mfd_core snd_timer firewire_ohci snd firewire_core crc_itu_t soundcore wmi battery tpm_tis tpm parport_pc parport ac acpi_cpufreq joydev i915 video button drm_kms_helper drm [ 916.059213] CPU: 1 PID: 4013 Comm: testdisplay Tainted: G W 3.15.0-rc3_drm-intel-nightly_2be456_20140514+ #2598 [ 916.059216] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05 08/10/2010 [ 916.059218] 00000000 c16a5021 f4993ccc c102cf1b f8569f80 c2858000 00070008 000963dc [ 916.059225] f6175db4 c102cf96 00000009 f4993ccc f85acdb9 f4993ce4 f8569f80 f85ab5ab [ 916.059231] 000003b0 f85acdb9 c2858000 f6175db8 f5bfc000 f856f6da f4993d00 f804c166 [ 916.059238] Call Trace: [ 916.059245] [] ? dump_stack+0x3e/0x4e [ 916.059253] [] ? warn_slowpath_common+0x61/0x74 [ 916.059279] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 916.059284] [] ? warn_slowpath_fmt+0x29/0x2d [ 916.059310] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 916.059337] [] ? ironlake_crtc_disable+0x85/0x713 [i915] [ 916.059350] [] ? drm_ut_debug_printk+0x2c/0x30 [drm] [ 916.059376] [] ? intel_dump_pipe_config+0x29a/0x29f [i915] [ 916.059401] [] ? __intel_set_mode+0xbe7/0xffd [i915] [ 916.059405] [] ? console_unlock+0x309/0x33d [ 916.059409] [] ? wake_up_klogd+0x25/0x26 [ 916.059435] [] ? intel_set_mode+0x11/0x25 [i915] [ 916.059460] [] ? intel_crtc_set_config+0x646/0x8f1 [i915] [ 916.059465] [] ? printk+0x16/0x1a [ 916.059479] [] ? drm_mode_set_config_internal+0x39/0x8a [drm] [ 916.059492] [] ? drm_mode_setcrtc+0x37e/0x408 [drm] [ 916.059505] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 916.059515] [] ? drm_ioctl+0x22e/0x35f [drm] [ 916.059528] [] ? drm_mode_setplane+0x2fd/0x2fd [drm] [ 916.059539] [] ? drm_copy_field+0x47/0x47 [drm] [ 916.059546] [] ? do_vfs_ioctl+0x3fa/0x444 [ 916.059550] [] ? __schedule+0x597/0x6bb [ 916.059555] [] ? vfs_write+0xf8/0x157 [ 916.059559] [] ? SyS_ioctl+0x42/0x6d [ 916.059564] [] ? sysenter_do_call+0x12/0x22 [ 916.059567] ---[ end trace 705caa71d149a4fc ]--- [ 916.061089] [drm:intel_disable_shared_dpll] disable PCH DPLL A (active 1, on? 1) for crtc 5 [ 916.061095] [drm:intel_disable_shared_dpll] disabling PCH DPLL A [ 916.061510] [drm:intel_update_fbc] no output, disabling [ 916.061527] [drm:intel_get_shared_dpll] CRTC:5 dropping existing PCH DPLL A [ 916.061529] [drm:intel_get_shared_dpll] CRTC:5 using pre-allocated PCH DPLL A [ 916.061530] [drm:intel_get_shared_dpll] using PCH DPLL A for pipe A [ 916.061532] [drm:intel_get_shared_dpll] setting up PCH DPLL A [ 916.061548] [drm:ironlake_update_primary_plane] Writing base 0B068000 00000000 0 0 2880 [ 916.061554] [drm:intel_crtc_mode_set] [ENCODER:23:TMDS-23] set [MODE:0:720x400] [ 916.061556] [drm:intel_dp_mode_set] Enabling DP audio on pipe A [ 916.061559] [drm:intel_write_eld] ELD on [CONNECTOR:24:DP-1], [ENCODER:23:TMDS-23] [ 916.061560] [drm:ironlake_write_eld] ELD on pipe A [ 916.061563] [drm:ironlake_write_eld] Audio directed to unknown port [ 916.061564] [drm:ironlake_write_eld] ELD: DisplayPort detected [ 916.062427] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x100 [ 916.062430] [drm:ironlake_fdi_link_train] FDI train 1 done. [ 916.062589] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x200 [ 916.062592] [drm:ironlake_fdi_link_train] FDI train 2 done. [ 916.062594] [drm:ironlake_fdi_link_train] FDI train done [ 916.062598] [drm:ironlake_enable_shared_dpll] enable PCH DPLL A (active 0, on? 0)for crtc 5 [ 916.062601] [drm:ironlake_enable_shared_dpll] enabling PCH DPLL A [ 916.064264] [drm:ibx_irq_handler] *ERROR* PCH transcoder A FIFO underrun [ 916.064531] [drm:intel_dp_set_signal_levels] Using signal levels 00000000 [ 916.064990] [drm:intel_dp_start_link_train] clock recovery OK [ 916.065757] [drm:intel_dp_complete_link_train] Channel EQ done. DP Training successful [ 916.081150] [drm:intel_update_fbc] disabled per chip default [ 916.095176] [drm:intel_connector_check_state] [CONNECTOR:24:DP-1] [ 916.095190] [drm:check_encoder_state] [ENCODER:11:DAC-11] [ 916.095196] [drm:check_encoder_state] [ENCODER:12:TMDS-12] [ 916.095200] [drm:check_encoder_state] [ENCODER:21:TMDS-21] [ 916.095205] [drm:check_encoder_state] [ENCODER:23:TMDS-23] [ 916.095210] [drm:check_encoder_state] [ENCODER:25:TMDS-25] [ 916.095215] [drm:check_encoder_state] [ENCODER:27:TMDS-27] [ 916.095220] [drm:check_encoder_state] [ENCODER:29:TMDS-29] [ 916.095225] [drm:check_encoder_state] [ENCODER:31:TMDS-31] [ 916.095230] [drm:check_crtc_state] [CRTC:5] [ 916.095259] [drm:check_crtc_state] [CRTC:8] [ 916.095262] [drm:check_shared_dpll_state] PCH DPLL A [ 916.095268] [drm:check_shared_dpll_state] PCH DPLL B [ 921.098502] [drm:intel_crtc_set_config] [CRTC:5] [NOFB] [ 921.098509] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=1, fb_changed=0 [ 921.098513] [drm:intel_modeset_stage_output_state] [CONNECTOR:24:DP-1] to [NOCRTC] [ 921.098515] [drm:intel_modeset_stage_output_state] encoder changed, full mode switch [ 921.098518] [drm:intel_modeset_stage_output_state] crtc changed, full mode switch [ 921.098521] [drm:intel_modeset_stage_output_state] crtc disabled, full mode switch [ 921.098525] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 0, prepare: 0, disable: 1 [ 921.106473] [drm:intel_dp_link_down] [ 921.209309] ------------[ cut here ]------------ [ 921.209342] WARNING: CPU: 3 PID: 4013 at drivers/gpu/drm/i915/intel_display.c:944 intel_wait_for_pipe_off+0x12e/0x135 [i915]() [ 921.209344] pipe_off wait timed out [ 921.209346] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic iTCO_wdt iTCO_vendor_support ppdev dcdbas snd_hda_intel snd_hda_controller pcspkr snd_hda_codec i2c_i801 snd_hwdep snd_pcm lpc_ich mfd_core snd_timer firewire_ohci snd firewire_core crc_itu_t soundcore wmi battery tpm_tis tpm parport_pc parport ac acpi_cpufreq joydev i915 video button drm_kms_helper drm [ 921.209380] CPU: 3 PID: 4013 Comm: testdisplay Tainted: G W 3.15.0-rc3_drm-intel-nightly_2be456_20140514+ #2598 [ 921.209383] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05 08/10/2010 [ 921.209385] 00000000 c16a5021 f4993cc0 c102cf1b f8569f80 c2858000 00070008 000977f7 [ 921.209392] f6175db4 c102cf96 00000009 f4993cc0 f85acdb9 f4993cd8 f8569f80 f85ab5ab [ 921.209398] 000003b0 f85acdb9 c2858000 f6175db8 f5bfc000 f856f6da f4993cf4 f804c166 [ 921.209405] Call Trace: [ 921.209410] [] ? dump_stack+0x3e/0x4e [ 921.209416] [] ? warn_slowpath_common+0x61/0x74 [ 921.209443] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 921.209448] [] ? warn_slowpath_fmt+0x29/0x2d [ 921.209474] [] ? intel_wait_for_pipe_off+0x12e/0x135 [i915] [ 921.209501] [] ? ironlake_crtc_disable+0x85/0x713 [i915] [ 921.209514] [] ? drm_ut_debug_printk+0x2c/0x30 [drm] [ 921.209540] [] ? __intel_set_mode+0x1a3/0xffd [i915] [ 921.209565] [] ? __intel_set_mode+0xaee/0xffd [i915] [ 921.209570] [] ? up+0x9/0x2a [ 921.209574] [] ? console_unlock+0x309/0x33d [ 921.209600] [] ? intel_set_mode+0x11/0x25 [i915] [ 921.209625] [] ? intel_crtc_set_config+0x646/0x8f1 [i915] [ 921.209630] [] ? load_balance+0x106/0x61f [ 921.209644] [] ? drm_mode_set_config_internal+0x39/0x8a [drm] [ 921.209657] [] ? drm_framebuffer_remove+0x70/0xd6 [drm] [ 921.209670] [] ? drm_mode_rmfb+0xa7/0xcd [drm] [ 921.209683] [] ? drm_mode_addfb2+0x5c2/0x5c2 [drm] [ 921.209693] [] ? drm_ioctl+0x22e/0x35f [drm] [ 921.209706] [] ? drm_mode_addfb2+0x5c2/0x5c2 [drm] [ 921.209710] [] ? __schedule+0x597/0x6bb [ 921.209715] [] ? enqueue_hrtimer+0x10/0x2e [ 921.209719] [] ? __hrtimer_start_range_ns+0x15b/0x259 [ 921.209722] [] ? __hrtimer_start_range_ns+0x242/0x259 [ 921.209727] [] ? lock_hrtimer_base.isra.26+0x14/0x2d [ 921.209730] [] ? hrtimer_try_to_cancel+0x54/0x5a [ 921.209741] [] ? drm_copy_field+0x47/0x47 [drm] [ 921.209745] [] ? do_vfs_ioctl+0x3fa/0x444 [ 921.209750] [] ? hrtimer_nanosleep+0x73/0xf3 [ 921.209753] [] ? update_rmtp+0x5e/0x5e [ 921.209757] [] ? SyS_ioctl+0x42/0x6d [ 921.209762] [] ? sysenter_do_call+0x12/0x22 [ 921.209765] ---[ end trace 705caa71d149a4fd ]--- [ 921.213352] [drm:intel_disable_shared_dpll] disable PCH DPLL A (active 1, on? 1) for crtc 5 [ 921.213360] [drm:intel_disable_shared_dpll] disabling PCH DPLL A [ 921.213778] [drm:intel_update_fbc] no output, disabling [ 921.213798] [drm:check_encoder_state] [ENCODER:11:DAC-11] [ 921.213803] [drm:check_encoder_state] [ENCODER:12:TMDS-12] [ 921.213806] [drm:check_encoder_state] [ENCODER:21:TMDS-21] [ 921.213811] [drm:check_encoder_state] [ENCODER:23:TMDS-23] [ 921.213815] [drm:check_encoder_state] [ENCODER:25:TMDS-25] [ 921.213820] [drm:check_encoder_state] [ENCODER:27:TMDS-27] [ 921.213823] [drm:check_encoder_state] [ENCODER:29:TMDS-29] [ 921.213828] [drm:check_encoder_state] [ENCODER:31:TMDS-31] [ 921.213832] [drm:check_crtc_state] [CRTC:5] [ 921.213835] [drm:check_crtc_state] [CRTC:8] [ 921.213838] [drm:check_shared_dpll_state] PCH DPLL A [ 921.213844] [drm:check_shared_dpll_state] PCH DPLL B [ 921.213863] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[8] ENCODERS[8] [ 921.213869] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[8] ENCODERS[8] [ 921.213875] [drm:drm_mode_getconnector] [CONNECTOR:26:?] [ 921.213880] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:26:HDMI-A-2] [ 921.213883] [drm:intel_hdmi_detect] [CONNECTOR:26:HDMI-A-2] [ 921.214045] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1) [ 921.214048] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc [ 921.214053] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:26:HDMI-A-2] disconnected [ 921.214058] [drm:drm_mode_getconnector] [CONNECTOR:26:?] [ 921.214062] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:26:HDMI-A-2] [ 921.214065] [drm:intel_hdmi_detect] [CONNECTOR:26:HDMI-A-2] [ 921.214264] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1) [ 921.214275] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc [ 921.214289] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:26:HDMI-A-2] disconnected [ 921.214306] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[8] ENCODERS[8] [ 921.214317] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[8] ENCODERS[8] [ 921.214328] [drm:drm_mode_getconnector] [CONNECTOR:28:?] [ 921.214339] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:28:HDMI-A-3] [ 921.214350] [drm:intel_hdmi_detect] [CONNECTOR:28:HDMI-A-3] [ 921.214513] [drm:gmbus_xfer] GMBUS [i915 gmbus dpd] NAK for addr: 0050 r(1) [ 921.214516] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpd [ 921.214519] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:28:HDMI-A-3] disconnected [ 921.214523] [drm:drm_mode_getconnector] [CONNECTOR:28:?] [ 921.214526] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:28:HDMI-A-3] [ 921.214528] [drm:intel_hdmi_detect] [CONNECTOR:28:HDMI-A-3] [ 921.214695] [drm:gmbus_xfer] GMBUS [i915 gmbus dpd] NAK for addr: 0050 r(1) [ 921.214698] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpd [ 921.214702] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:28:HDMI-A-3] disconnected [ 921.214711] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[8] ENCODERS[8] [ 921.214714] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[8] ENCODERS[8] [ 921.214718] [drm:drm_mode_getconnector] [CONNECTOR:30:?] [ 921.214721] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:30:DP-2] [ 921.214724] [drm:intel_dp_detect] [CONNECTOR:30:DP-2] [ 921.214729] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:30:DP-2] disconnected [ 921.214732] [drm:drm_mode_getconnector] [CONNECTOR:30:?] [ 921.214735] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:30:DP-2] [ 921.214737] [drm:intel_dp_detect] [CONNECTOR:30:DP-2] [ 921.214742] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:30:DP-2] disconnected [ 921.214747] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[8] ENCODERS[8] [ 921.214751] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[8] ENCODERS[8] [ 921.214754] [drm:drm_mode_getconnector] [CONNECTOR:32:?] [ 921.214757] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:32:DP-3] [ 921.214760] [drm:intel_dp_detect] [CONNECTOR:32:DP-3] [ 921.214763] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:32:DP-3] disconnected [ 921.214766] [drm:drm_mode_getconnector] [CONNECTOR:32:?] [ 921.214769] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:32:DP-3] [ 921.214771] [drm:intel_dp_detect] [CONNECTOR:32:DP-3] [ 921.214775] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:32:DP-3] disconnected [ 921.214852] [drm:intel_crtc_cursor_set] cursor off [ 921.214855] [drm:intel_crtc_set_config] [CRTC:5] [FB:56] #connectors=1 (x y) (0 0) [ 921.214857] [drm:intel_set_config_compute_mode_changes] inactive crtc, full mode set [ 921.214858] [drm:intel_set_config_compute_mode_changes] modes are different, full mode set [ 921.214862] [drm:drm_mode_debug_printmodeline] Modeline 59:"720x400" 70 28320 720 738 846 900 400 412 414 449 0x40 0x6 [ 921.214865] [drm:drm_mode_debug_printmodeline] Modeline 54:"1366x768" 60 69000 1366 1398 1422 1426 768 771 775 806 0x48 0x9 [ 921.214867] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=1, fb_changed=0 [ 921.214868] [drm:intel_modeset_stage_output_state] encoder changed, full mode switch [ 921.214870] [drm:intel_modeset_stage_output_state] [CONNECTOR:13:eDP-1] to [CRTC:5] [ 921.214871] [drm:intel_modeset_stage_output_state] crtc changed, full mode switch [ 921.214872] [drm:intel_modeset_stage_output_state] crtc enabled, full mode switch [ 921.214874] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 921.214877] [drm:connected_sink_compute_bpp] [CONNECTOR:13:eDP-1] checking for sink bpp constrains [ 921.214878] [drm:connected_sink_compute_bpp] clamping display bpp (was 24) to EDID reported max of 18 [ 921.214881] [drm:intel_dp_compute_config] DP link computation with max lane count 1 max bw 0a pixel clock 69000KHz [ 921.214882] [drm:intel_dp_compute_config] using min 1 lanes per VBT [ 921.214883] [drm:intel_dp_compute_config] using min 0a link bw per VBT [ 921.214885] [drm:intel_dp_compute_config] DP link bw 0a lane count 1 clock 270000 bpp 18 [ 921.214887] [drm:intel_dp_compute_config] DP link bw required 124200 available 216000 [ 921.214889] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 18, dithering: 1 [ 921.214891] [drm:intel_dump_pipe_config] [CRTC:5][modeset] config for pipe A [ 921.214892] [drm:intel_dump_pipe_config] cpu_transcoder: A [ 921.214893] [drm:intel_dump_pipe_config] pipe bpp: 18, dithering: 1 [ 921.214895] [drm:intel_dump_pipe_config] fdi/pch: 0, lanes: 0, gmch_m: 0, gmch_n: 0, link_m: 0, link_n: 0, tu: 0 [ 921.214897] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 2411724, gmch_n: 4194304, link_m: 133984, link_n: 524288, tu: 64 [ 921.214898] [drm:intel_dump_pipe_config] requested mode: [ 921.214901] [drm:drm_mode_debug_printmodeline] Modeline 0:"1366x768" 60 69000 1366 1398 1422 1426 768 771 775 806 0x48 0x9 [ 921.214902] [drm:intel_dump_pipe_config] adjusted mode: [ 921.214905] [drm:drm_mode_debug_printmodeline] Modeline 0:"1366x768" 60 69000 1366 1398 1422 1426 768 771 775 806 0x48 0x9 [ 921.214907] [drm:intel_dump_crtc_timings] crtc timings: 69000 1366 1398 1422 1426 768 771 775 806, type: 0x48 flags: 0x9 [ 921.214908] [drm:intel_dump_pipe_config] port clock: 270000 [ 921.214909] [drm:intel_dump_pipe_config] pipe src size: 1366x768 [ 921.214911] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 921.214913] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 921.214914] [drm:intel_dump_pipe_config] ips: 0 [ 921.214915] [drm:intel_dump_pipe_config] double wide: 0 [ 921.214972] [drm:ironlake_update_primary_plane] Writing base 00180000 00000000 0 0 10240 [ 921.214977] [drm:intel_crtc_mode_set] [ENCODER:12:TMDS-12] set [MODE:0:1366x768] [ 921.214979] [drm:ironlake_set_pll_cpu_edp] eDP PLL enable for clock 270000 [ 921.215483] [drm:ironlake_edp_pll_on] [ 921.215812] [drm:_edp_panel_vdd_on] Turning eDP VDD on [ 921.215814] [drm:wait_panel_power_cycle] Wait for panel power cycle [ 921.215819] [drm:wait_panel_status] mask b800000f value 00000000 status 00000000 control abcd0000 [ 921.215821] [drm:wait_panel_status] Wait complete [ 921.215828] [drm:_edp_panel_vdd_on] PP_STATUS: 0x00000000 PP_CONTROL: 0xabcd0008 [ 921.215830] [drm:_edp_panel_vdd_on] eDP was not running [ 921.517015] [drm:intel_dp_set_signal_levels] Using signal levels 00000000 [ 921.517461] [drm:intel_dp_set_signal_levels] Using signal levels 00000000 [ 921.517899] [drm:intel_dp_start_link_train] clock recovery OK [ 921.517900] [drm:intel_edp_panel_on] Turn eDP power on [ 921.517902] [drm:wait_panel_power_cycle] Wait for panel power cycle [ 921.517906] [drm:wait_panel_status] mask b800000f value 00000000 status 00000000 control abcd0008 [ 921.517909] [drm:wait_panel_status] Wait complete [ 921.517913] [drm:wait_panel_on] Wait for panel power on [ 921.517917] [drm:wait_panel_status] mask b000000f value 80000008 status 0000000a control abcd0009 [ 921.825618] [drm:wait_panel_status] Wait complete [ 921.825622] [drm:edp_panel_vdd_off_sync] Turning eDP VDD off [ 921.825628] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0003 [ 921.825631] [drm:_edp_panel_vdd_on] Turning eDP VDD on [ 921.825639] [drm:_edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000b [ 921.826383] [drm:intel_dp_complete_link_train] Channel EQ done. DP Training successful [ 921.826532] [drm:intel_edp_backlight_on] [ 921.866654] [drm:intel_panel_enable_backlight] pipe A [ 921.866659] [drm:intel_panel_actually_set_backlight] set backlight PWM = 93 [ 921.876663] [drm:intel_update_fbc] disabled per chip default [ 921.894737] [drm:intel_connector_check_state] [CONNECTOR:13:eDP-1] [ 921.894750] [drm:check_encoder_state] [ENCODER:11:DAC-11] [ 921.894753] [drm:check_encoder_state] [ENCODER:12:TMDS-12] [ 921.894755] [drm:check_encoder_state] [ENCODER:21:TMDS-21] [ 921.894758] [drm:check_encoder_state] [ENCODER:23:TMDS-23] [ 921.894761] [drm:check_encoder_state] [ENCODER:25:TMDS-25] [ 921.894764] [drm:check_encoder_state] [ENCODER:27:TMDS-27] [ 921.894768] [drm:check_encoder_state] [ENCODER:29:TMDS-29] [ 921.894771] [drm:check_encoder_state] [ENCODER:31:TMDS-31] [ 921.894774] [drm:check_crtc_state] [CRTC:5] [ 921.894786] [drm:check_crtc_state] [CRTC:8] [ 921.894788] [drm:check_shared_dpll_state] PCH DPLL A [ 921.894793] [drm:check_shared_dpll_state] PCH DPLL B [ 921.894800] [drm:intel_crtc_cursor_set] cursor off [ 921.894802] [drm:intel_crtc_set_config] [CRTC:8] [FB:56] #connectors=1 (x y) (0 0) [ 921.894805] [drm:intel_set_config_compute_mode_changes] inactive crtc, full mode set [ 921.894807] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:8], mode_changed=1, fb_changed=0 [ 921.894809] [drm:intel_modeset_stage_output_state] encoder changed, full mode switch [ 921.894811] [drm:intel_modeset_stage_output_state] [CONNECTOR:13:eDP-1] to [CRTC:5] [ 921.894813] [drm:intel_modeset_stage_output_state] [CONNECTOR:24:DP-1] to [CRTC:8] [ 921.894814] [drm:intel_modeset_stage_output_state] crtc changed, full mode switch [ 921.894816] [drm:intel_modeset_stage_output_state] crtc enabled, full mode switch [ 921.894818] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 2, prepare: 2, disable: 0 [ 921.894821] [drm:connected_sink_compute_bpp] [CONNECTOR:24:DP-1] checking for sink bpp constrains [ 921.894825] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 0a pixel clock 268500KHz [ 921.894831] [drm:intel_dp_compute_config] DP link bw 0a lane count 4 clock 270000 bpp 24 [ 921.894833] [drm:intel_dp_compute_config] DP link bw required 644400 available 864000 [ 921.894836] [drm:ironlake_check_fdi_lanes] checking fdi config on pipe B, lanes 4 [ 921.894838] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 [ 921.894840] [drm:intel_dump_pipe_config] [CRTC:8][modeset] config for pipe B [ 921.894841] [drm:intel_dump_pipe_config] cpu_transcoder: B [ 921.894842] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 921.894845] [drm:intel_dump_pipe_config] fdi/pch: 1, lanes: 4, gmch_m: 6256503, gmch_n: 8388608, link_m: 521375, link_n: 524288, tu: 64 [ 921.894847] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 6256503, gmch_n: 8388608, link_m: 521375, link_n: 524288, tu: 64 [ 921.894848] [drm:intel_dump_pipe_config] requested mode: [ 921.894852] [drm:drm_mode_debug_printmodeline] Modeline 0:"2560x1600" 60 268500 2560 2608 2640 2720 1600 1603 1609 1646 0x48 0x9 [ 921.894853] [drm:intel_dump_pipe_config] adjusted mode: [ 921.894856] [drm:drm_mode_debug_printmodeline] Modeline 0:"2560x1600" 60 268500 2560 2608 2640 2720 1600 1603 1609 1646 0x48 0x9 [ 921.894859] [drm:intel_dump_crtc_timings] crtc timings: 268500 2560 2608 2640 2720 1600 1603 1609 1646, type: 0x48 flags: 0x9 [ 921.894860] [drm:intel_dump_pipe_config] port clock: 270000 [ 921.894862] [drm:intel_dump_pipe_config] pipe src size: 2560x1600 [ 921.894864] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 921.894865] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 921.894866] [drm:intel_dump_pipe_config] ips: 0 [ 921.894867] [drm:intel_dump_pipe_config] double wide: 0 [ 921.894896] [drm:intel_get_shared_dpll] CRTC:8 using pre-allocated PCH DPLL B [ 921.894897] [drm:intel_get_shared_dpll] using PCH DPLL B for pipe B [ 921.894897] [drm:intel_get_shared_dpll] setting up PCH DPLL B [ 921.894913] [drm:ironlake_update_primary_plane] Writing base 00180000 00000000 0 0 10240 [ 921.894917] [drm:intel_crtc_mode_set] [ENCODER:23:TMDS-23] set [MODE:0:2560x1600] [ 921.894919] [drm:intel_dp_mode_set] Enabling DP audio on pipe B [ 921.894921] [drm:intel_write_eld] ELD on [CONNECTOR:24:DP-1], [ENCODER:23:TMDS-23] [ 921.894921] [drm:ironlake_write_eld] ELD on pipe B [ 921.894923] [drm:ironlake_write_eld] Audio directed to unknown port [ 921.894924] [drm:ironlake_write_eld] ELD: DisplayPort detected [ 921.895772] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x100 [ 921.895773] [drm:ironlake_fdi_link_train] FDI train 1 done. [ 921.895928] [drm:ironlake_fdi_link_train] FDI_RX_IIR 0x200 [ 921.895929] [drm:ironlake_fdi_link_train] FDI train 2 done. [ 921.895929] [drm:ironlake_fdi_link_train] FDI train done [ 921.895930] [drm:ironlake_enable_shared_dpll] enable PCH DPLL B (active 0, on? 0)for crtc 8 [ 921.895931] [drm:ironlake_enable_shared_dpll] enabling PCH DPLL B [ 921.897836] [drm:intel_dp_set_signal_levels] Using signal levels 00000000 [ 921.897848] [drm:ibx_irq_handler] *ERROR* PCH transcoder B FIFO underrun [ 921.898342] [drm:intel_dp_start_link_train] clock recovery OK [ 921.899126] [drm:intel_dp_complete_link_train] Channel EQ done. DP Training successful [ 921.916682] [drm:intel_update_fbc] more than one pipe active, disabling compression [ 921.932694] [drm:intel_connector_check_state] [CONNECTOR:13:eDP-1] [ 921.932703] [drm:intel_connector_check_state] [CONNECTOR:24:DP-1] [ 921.932712] [drm:check_encoder_state] [ENCODER:11:DAC-11] [ 921.932717] [drm:check_encoder_state] [ENCODER:12:TMDS-12] [ 921.932720] [drm:check_encoder_state] [ENCODER:21:TMDS-21] [ 921.932724] [drm:check_encoder_state] [ENCODER:23:TMDS-23] [ 921.932729] [drm:check_encoder_state] [ENCODER:25:TMDS-25] [ 921.932733] [drm:check_encoder_state] [ENCODER:27:TMDS-27] [ 921.932736] [drm:check_encoder_state] [ENCODER:29:TMDS-29] [ 921.932740] [drm:check_encoder_state] [ENCODER:31:TMDS-31] [ 921.932744] [drm:check_crtc_state] [CRTC:5] [ 921.932759] [drm:check_crtc_state] [CRTC:8] [ 921.932786] [drm:check_shared_dpll_state] PCH DPLL A [ 921.932792] [drm:check_shared_dpll_state] PCH DPLL B [ 922.104032] [drm:intel_crtc_cursor_set] cursor off [ 922.104041] [drm:intel_crtc_set_config] [CRTC:5] [FB:56] #connectors=1 (x y) (0 0) [ 922.104050] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:5], mode_changed=0, fb_changed=0 [ 922.104057] [drm:intel_modeset_stage_output_state] [CONNECTOR:13:eDP-1] to [CRTC:5] [ 922.104061] [drm:intel_modeset_stage_output_state] [CONNECTOR:24:DP-1] to [CRTC:8] [ 922.104065] [drm:intel_crtc_cursor_set] cursor off [ 922.104070] [drm:intel_crtc_set_config] [CRTC:8] [FB:56] #connectors=1 (x y) (0 0) [ 922.104075] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:8], mode_changed=0, fb_changed=0 [ 922.104079] [drm:intel_modeset_stage_output_state] [CONNECTOR:13:eDP-1] to [CRTC:5] [ 922.104083] [drm:intel_modeset_stage_output_state] [CONNECTOR:24:DP-1] to [CRTC:8] [ 924.835552] [drm:edp_panel_vdd_off_sync] Turning eDP VDD off [ 924.835562] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0007