| Summary: | [snb dp] WARNING: at drivers/gpu/drm/i915/intel_dp.c:2081 -- disabling a disabled output | ||
|---|---|---|---|
| Product: | DRI | Reporter: | Chris Wilson <chris> |
| Component: | DRM/Intel | Assignee: | Daniel Vetter <daniel> |
| Status: | CLOSED WORKSFORME | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> |
| Severity: | normal | ||
| Priority: | medium | CC: | ben, chris, daniel, jani.nikula, jbarnes |
| Version: | unspecified | ||
| Hardware: | Other | ||
| OS: | All | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
Hmm, not easy to reproduce. But I did get a [ 114.710837] [drm:intel_disable_transcoder] *ERROR* failed to disable transcoder 1 instead. Daniel just changed the order of PCH vs CPU disable, maybe that fixes this? I was playing around with the suspect device yesterday, and whilst I haven't seen this warning again, the DP output on that machine does occassionally go haywire (bad signal to monitor and it loses sync). Still present? |
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intel_dp.c:2081 -- intel_dp_link_down(): if (WARN_ON((I915_READ(intel_dp->output_reg) & DP_PORT_EN) == 0)) return; [ 114.080576] WARNING: at drivers/gpu/drm/i915/intel_dp.c:2081 intel_dp_link_down+0x19d/0x1b0() [ 114.080581] Hardware name: HP ProBook 6360b [ 114.080584] Modules linked in: fuse bnep bluetooth arc4 iwldvm snd_hda_codec_hdmi mac80211 snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep iwlwifi snd_seq snd_seq_device snd_pcm iTCO_wdt coretemp cfg80211 snd_page_alloc crc32c_intel iTCO_vendor_support lpc_ich hp_accel e1000e mei snd_timer snd hp_wmi sparse_keymap rfkill wmi mfd_core lis3lv02d microcode serio_raw input_polldev soundcore uinput sdhci_pci sdhci mmc_core [ 114.080671] Pid: 540, comm: Xorg Not tainted 3.7.0-rc2+ #5 [ 114.080675] Call Trace: [ 114.080691] [<c1037a82>] warn_slowpath_common+0x72/0xa0 [ 114.080701] [<c1364aed>] ? intel_dp_link_down+0x19d/0x1b0 [ 114.080710] [<c1364aed>] ? intel_dp_link_down+0x19d/0x1b0 [ 114.080720] [<c1037ad2>] warn_slowpath_null+0x22/0x30 [ 114.080729] [<c1364aed>] intel_dp_link_down+0x19d/0x1b0 [ 114.080738] [<c1366cd7>] ? intel_dp_sink_dpms+0x47/0xa0 [ 114.080748] [<c1366d70>] intel_disable_dp+0x40/0x170 [ 114.080760] [<c10ebddd>] ? generic_file_buffered_write+0x17d/0x220 [ 114.080773] [<c13569d0>] ironlake_crtc_disable+0x650/0x860 [ 114.080785] [<c135a8de>] intel_crtc_update_dpms+0x5e/0x90 [ 114.080795] [<c135a9a8>] intel_encoder_dpms+0x18/0x30 [ 114.080804] [<c135be95>] intel_connector_dpms+0x35/0x60 [ 114.080815] [<c132a0cd>] drm_mode_obj_set_property_ioctl+0x36d/0x390 [ 114.080830] [<c1561cd8>] ? mutex_lock+0x18/0x40 [ 114.080841] [<c132a127>] drm_mode_connector_property_set_ioctl+0x37/0x50 [ 114.080851] [<c132a0f0>] ? drm_mode_obj_set_property_ioctl+0x390/0x390 [ 114.080861] [<c131a93a>] drm_ioctl+0x3ea/0x460 [ 114.080871] [<c132a0f0>] ? drm_mode_obj_set_property_ioctl+0x390/0x390 [ 114.080884] [<c116f360>] ? fsnotify_put_event+0x50/0x90 [ 114.080892] [<c116f360>] ? fsnotify_put_event+0x50/0x90 [ 114.080901] [<c116f360>] ? fsnotify_put_event+0x50/0x90 [ 114.080910] [<c131a550>] ? drm_copy_field+0x80/0x80 [ 114.080923] [<c114713a>] do_vfs_ioctl+0x7a/0x590 [ 114.080936] [<c120ec6a>] ? inode_has_perm.isra.30.constprop.61+0x3a/0x50 [ 114.080947] [<c1210030>] ? file_has_perm+0xa0/0xb0 [ 114.080958] [<c1138238>] ? vfs_write+0xe8/0x160 [ 114.080967] [<c1210448>] ? selinux_file_ioctl+0x48/0xe0 [ 114.080977] [<c11476bb>] sys_ioctl+0x6b/0x80 [ 114.080987] [<c156ab7a>] sysenter_do_call+0x12/0x22 [ 114.080999] [<c1560000>] ? i915_gem_object_pin_pages.isra.7.part.8+0x2/0x5