Created attachment 126524 [details] Dmesg Configuration: SKL NUC 6i5SYH, brand new 16.10 Ubuntu version. Without update or upgrades. Kernel: Generic 4.4.0-913 Working with 2 displays DP-1 1920X1080 60 HDMI-1 1920x1200 59.95 Description: In extend mode, changing monitor order (left monitor to right an so on), the HDMI screen shows a blue line about 1 inch on the bottom of this display. Steps to reproduce: 1. Install Ubuntu 16.10 using ISO image 2. Go to settings-> display 3. Move or change the order of the displays Normal result: Displays should be showing full desktop without any kind of artifact Actual result: HDMI-Display shows a blue line , about 1 inch at the bottom of the screen Attaching screen-shot, dmesg, xorg, and kern.log Debug flag: drm.debug=0xe
Created attachment 126525 [details] Screen shot
Created attachment 126526 [details] kern log
Created attachment 126527 [details] xorg log
The problem is present with latest kernels as well (4.8)
From 1st log you have : [ 3.672899] ------------[ cut here ]------------ [ 3.672923] WARNING: CPU: 2 PID: 328 at /build/linux-rTsl6N/linux-4.4.0/ubuntu/i915/intel_pm.c:3675 skl_update_other_pipe_wm+0x16c/0x180 [i915_bpo]() [ 3.672924] WARN_ON(!wm_changed) [ 3.672925] Modules linked in: [ 3.672926] snd_seq_device snd_timer cfg80211 snd aes_x86_64 lrw gf128mul input_leds glue_helper ir_lirc_codec ablk_helper ir_mce_kbd_decoder ir_xmp_decoder lirc_dev cryptd ir_sharp_decoder ir_sanyo_decoder ir_sony_decoder ir_jvc_decoder idma64 hci_uart virt_dma ir_rc6_decoder btqca ir_rc5_decoder btusb btrtl btbcm soundcore btintel shpchp ir_nec_decoder bluetooth intel_lpss_pci mei_me mei rc_rc6_mce ite_cir rc_core intel_lpss_acpi intel_lpss mac_hid acpi_pad acpi_als kfifo_buf industrialio parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_generic uas usb_storage usbhid i915_bpo intel_ips i2c_algo_bit drm_kms_helper syscopyarea sysfillrect e1000e sysimgblt fb_sys_fops drm ptp sdhci_pci ahci pps_core sdhci libahci video pinctrl_sunrisepoint i2c_hid pinctrl_intel hid fjes [ 3.672967] CPU: 2 PID: 328 Comm: plymouthd Not tainted 4.4.0-9136-generic #55-Ubuntu [ 3.672969] Hardware name: /NUC6i5SYB, BIOS SYSKLi35.86A.0045.2016.0527.1055 05/27/2016 [ 3.672970] 0000000000000286 000000007eb8cb28 ffff88045a067998 ffffffff813f13e3 [ 3.672973] ffff88045a0679e0 ffffffffc02b29a8 ffff88045a0679d0 ffffffff810810f2 [ 3.672975] ffff8804558bb000 ffff880454efa148 ffff8804558bc000 ffff8804550f6b78 [ 3.672978] Call Trace: [ 3.672983] [<ffffffff813f13e3>] dump_stack+0x63/0x90 [ 3.672987] [<ffffffff810810f2>] warn_slowpath_common+0x82/0xc0 [ 3.672989] [<ffffffff8108118c>] warn_slowpath_fmt+0x5c/0x80 [ 3.673009] [<ffffffffc01d3fec>] skl_update_other_pipe_wm+0x16c/0x180 [i915_bpo] [ 3.673026] [<ffffffffc01d4185>] skl_update_wm+0x185/0x610 [i915_bpo] [ 3.673051] [<ffffffffc02653ef>] ? intel_ddi_enable_transcoder_func+0x17f/0x260 [i915_bpo] [ 3.673069] [<ffffffffc01d7f0e>] intel_update_watermarks+0x1e/0x30 [i915_bpo] [ 3.673092] [<ffffffffc02476c1>] haswell_crtc_enable+0x761/0x8e0 [i915_bpo] [ 3.673115] [<ffffffffc0232cfe>] ? intel_finish_crtc_commit+0xe/0x10 [i915_bpo] [ 3.673123] [<ffffffffc01886a4>] ? drm_atomic_helper_commit_planes_on_crtc+0x154/0x270 [drm_kms_helper] [ 3.673145] [<ffffffffc02435c6>] intel_atomic_commit+0x5d6/0x14a0 [i915_bpo] [ 3.673163] [<ffffffffc00c4b8e>] ? drm_atomic_check_only+0x18e/0x590 [drm] [ 3.673177] [<ffffffffc00c4fc7>] drm_atomic_commit+0x37/0x60 [drm] [ 3.673184] [<ffffffffc0189e1f>] restore_fbdev_mode+0x22f/0x260 [drm_kms_helper] [ 3.673199] [<ffffffffc00c374a>] ? drm_modeset_lock_all_ctx+0x9a/0xb0 [drm] [ 3.673206] [<ffffffffc018bff3>] drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper] [ 3.673229] [<ffffffffc025e322>] intel_fbdev_restore_mode+0x22/0x80 [i915_bpo] [ 3.673252] [<ffffffffc02895ae>] i915_driver_lastclose+0xe/0x20 [i915_bpo] [ 3.673262] [<ffffffffc00a7a6e>] drm_lastclose+0x2e/0x140 [drm] [ 3.673272] [<ffffffffc00a7e96>] drm_release+0x316/0x500 [drm] [ 3.673276] [<ffffffff811c00fa>] ? handle_mm_fault+0xcaa/0x1820 [ 3.673279] [<ffffffff8120ef94>] __fput+0xe4/0x220 [ 3.673282] [<ffffffff8120f10e>] ____fput+0xe/0x10 [ 3.673285] [<ffffffff8109ec21>] task_work_run+0x81/0xa0 [ 3.673288] [<ffffffff81003242>] exit_to_usermode_loop+0xc2/0xd0 [ 3.673291] [<ffffffff81003c6e>] syscall_return_slowpath+0x4e/0x60 [ 3.673293] [<ffffffff8182e150>] int_ret_from_sys_call+0x25/0x8f [ 3.673295] ---[ end trace fc6663fecc5341a1 ]--- From 2nd log you have : Sep 14 14:57:51 gfx-desktop kernel: [ 4.859496] ------------[ cut here ]------------ Sep 14 14:57:51 gfx-desktop kernel: [ 4.859512] WARNING: CPU: 0 PID: 973 at /build/linux-rTsl6N/linux-4.4.0/ubuntu/i915/intel_pm.c:3675 skl_update_other_pipe_wm+0x16c/0x180 [i915_bpo]() Sep 14 14:57:51 gfx-desktop kernel: [ 4.859513] WARN_ON(!wm_changed) Sep 14 14:57:51 gfx-desktop kernel: [ 4.859514] Modules linked in: cmac bnep arc4 snd_hda_codec_hdmi 8250_dw snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core snd_soc_sst_ipc snd_hda_codec_realtek snd_hda_codec_generic snd_soc_sst_dsp nls_iso8859_1 snd_soc_core intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp snd_compress ac97_bus iwlmvm kvm_intel kvm snd_pcm_dmaengine mac80211 dw_dmac_core snd_hda_intel snd_hda_codec snd_hda_core irqbypass snd_hwdep crct10dif_pclmul crc32_pclmul snd_pcm snd_seq_midi iwlwifi snd_seq_midi_event snd_rawmidi aesni_intel snd_seq snd_seq_device snd_timer cfg80211 snd aes_x86_64 lrw gf128mul input_leds glue_helper ir_lirc_codec ablk_helper ir_mce_kbd_decoder ir_xmp_decoder lirc_dev cryptd ir_sharp_decoder ir_sanyo_decoder ir_sony_decoder ir_jvc_decoder idma64 hci_uart virt_dma ir_rc6_decoder btqca ir_rc5_decoder btusb btrtl btbcm soundcore btintel shpchp ir_nec_decoder bluetooth intel_lpss_pci mei_me mei rc_rc6_mce ite_cir rc_core intel_lpss_acpi intel_lpss mac_hid acpi_pad acpi_als kfifo_buf industrialio parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_generic uas usb_storage usbhid i915_bpo intel_ips i2c_algo_bit drm_kms_helper syscopyarea sysfillrect e1000e sysimgblt fb_sys_fops drm ptp sdhci_pci ahci pps_core sdhci libahci video pinctrl_sunrisepoint i2c_hid pinctrl_intel hid fjes Sep 14 14:57:51 gfx-desktop kernel: [ 4.859557] CPU: 0 PID: 973 Comm: Xorg Tainted: G W 4.4.0-9136-generic #55-Ubuntu Sep 14 14:57:51 gfx-desktop kernel: [ 4.859558] Hardware name: /NUC6i5SYB, BIOS SYSKLi35.86A.0045.2016.0527.1055 05/27/2016 Sep 14 14:57:51 gfx-desktop kernel: [ 4.859559] 0000000000000286 000000004668a1fa ffff8804595ff920 ffffffff813f13e3 Sep 14 14:57:51 gfx-desktop kernel: [ 4.859561] ffff8804595ff968 ffffffffc02b29a8 ffff8804595ff958 ffffffff810810f2 Sep 14 14:57:51 gfx-desktop kernel: [ 4.859562] ffff8804558bb000 ffff880454efa148 ffff8804558bc000 ffff8804550f6b78 Sep 14 14:57:51 gfx-desktop kernel: [ 4.859564] Call Trace: Sep 14 14:57:51 gfx-desktop kernel: [ 4.859568] [<ffffffff813f13e3>] dump_stack+0x63/0x90 Sep 14 14:57:51 gfx-desktop kernel: [ 4.859571] [<ffffffff810810f2>] warn_slowpath_common+0x82/0xc0 Sep 14 14:57:51 gfx-desktop kernel: [ 4.859572] [<ffffffff8108118c>] warn_slowpath_fmt+0x5c/0x80 Sep 14 14:57:51 gfx-desktop kernel: [ 4.859583] [<ffffffffc01d3fec>] skl_update_other_pipe_wm+0x16c/0x180 [i915_bpo] Sep 14 14:57:51 gfx-desktop kernel: [ 4.859593] [<ffffffffc01d4185>] skl_update_wm+0x185/0x610 [i915_bpo] Sep 14 14:57:51 gfx-desktop kernel: [ 4.859609] [<ffffffffc02653ef>] ? intel_ddi_enable_transcoder_func+0x17f/0x260 [i915_bpo] Sep 14 14:57:51 gfx-desktop kernel: [ 4.859619] [<ffffffffc01d7f0e>] intel_update_watermarks+0x1e/0x30 [i915_bpo] Sep 14 14:57:51 gfx-desktop kernel: [ 4.859634] [<ffffffffc02476c1>] haswell_crtc_enable+0x761/0x8e0 [i915_bpo] Sep 14 14:57:51 gfx-desktop kernel: [ 4.859648] [<ffffffffc02435c6>] intel_atomic_commit+0x5d6/0x14a0 [i915_bpo] Sep 14 14:57:51 gfx-desktop kernel: [ 4.859660] [<ffffffffc00c4b8e>] ? drm_atomic_check_only+0x18e/0x590 [drm] Sep 14 14:57:51 gfx-desktop kernel: [ 4.859669] [<ffffffffc00c4fc7>] drm_atomic_commit+0x37/0x60 [drm] Sep 14 14:57:51 gfx-desktop kernel: [ 4.859675] [<ffffffffc0188d86>] drm_atomic_helper_set_config+0x76/0xb0 [drm_kms_helper] Sep 14 14:57:51 gfx-desktop kernel: [ 4.859683] [<ffffffffc00b3e32>] drm_mode_set_config_internal+0x62/0x100 [drm] Sep 14 14:57:51 gfx-desktop kernel: [ 4.859692] [<ffffffffc00b848c>] drm_mode_setcrtc+0x3cc/0x4f0 [drm] Sep 14 14:57:51 gfx-desktop kernel: [ 4.859698] [<ffffffffc00a9742>] drm_ioctl+0x152/0x540 [drm] Sep 14 14:57:51 gfx-desktop kernel: [ 4.859705] [<ffffffffc00b80c0>] ? drm_mode_setplane+0x1b0/0x1b0 [drm] Sep 14 14:57:51 gfx-desktop kernel: [ 4.859708] [<ffffffff81220c1f>] do_vfs_ioctl+0x29f/0x490 Sep 14 14:57:51 gfx-desktop kernel: [ 4.859709] [<ffffffff8120f7f1>] ? __sb_end_write+0x21/0x30 Sep 14 14:57:51 gfx-desktop kernel: [ 4.859711] [<ffffffff8120d3fd>] ? vfs_write+0x15d/0x1a0 Sep 14 14:57:51 gfx-desktop kernel: [ 4.859712] [<ffffffff81220e89>] SyS_ioctl+0x79/0x90 Sep 14 14:57:51 gfx-desktop kernel: [ 4.859715] [<ffffffff8182dff2>] entry_SYSCALL_64_fastpath+0x16/0x71 Sep 14 14:57:51 gfx-desktop kernel: [ 4.859716] ---[ end trace fc6663fecc5341a2 ]---
Do you still reproduce this with last drm-tip kernel?
The problem is not present anymore with main line kernel (4.10.2) Tried to reproduce it using different array configuration.
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