| Summary: | [PNV] testdisplay -f causes *ERROR* mismatch in gmch_pfit.lvds_border_bits (expected 32768, found 0) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Product: | DRI | Reporter: | Jeff Zheng <jeff.zheng> | ||||||
| Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||||
| Status: | CLOSED FIXED | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||||
| Severity: | normal | ||||||||
| Priority: | medium | CC: | christophe.prigent, intel-gfx-bugs, sitsofe | ||||||
| Version: | unspecified | ||||||||
| Hardware: | Other | ||||||||
| OS: | All | ||||||||
| Whiteboard: | |||||||||
| i915 platform: | PNV | i915 features: | display/Other | ||||||
| Attachments: |
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*** Bug 89209 has been marked as a duplicate of this bug. *** Please try kernel v4.4. Created attachment 123336 [details]
dmesg
Still here with 4.4:
[ 293.438700] [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in gmch_pfit.lvds_border_bits (expected 0x00008000, found 0x00000000)
[ 293.438709] ------------[ cut here ]------------
[ 293.438799] WARNING: CPU: 0 PID: 811 at /build/linux-TGcUZh/linux-4.4.0/drivers/gpu/drm/i915/intel_display.c:12810 intel_modeset_check_state+0x6bf/0x910 [i915]()
[ 293.438804] pipe state doesn't match!
[ 293.438807] Modules linked in: drbg ansi_cprng ctr ccm uvcvideo snd_hda_codec_realtek snd_hda_codec_generic videobuf2_vmalloc snd_hda_intel videobuf2_memops joydev videobuf2_v4l2 snd_hda_codec videobuf2_core snd_hda_core v4l2_common snd_hwdep videodev snd_pcm media snd_seq_midi snd_seq_midi_event psmouse snd_rawmidi input_leds snd_seq serio_raw lpc_ich pata_acpi snd_seq_device snd_timer snd eeepc_laptop soundcore shpchp sparse_keymap fjes mac_hid parport_pc ppdev lp parport uas usb_storage autofs4 zram lz4_compress i915 ath5k mac80211 i2c_algo_bit drm_kms_helper syscopyarea ath sysfillrect cfg80211 sysimgblt fb_sys_fops drm ahci libahci video
[ 293.438907] CPU: 0 PID: 811 Comm: Xorg Tainted: G W 4.4.0-21-generic #37-Ubuntu
Dmesg attached.
Setting back to NEW. Problem still occurs with 4.6.0-994-generic from http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-next/2016-04-26-wily/ . Apologies the link in the last comment was wrong - the kernel was from http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/2016-04-29-wily/ . Please try this patch and report back: http://patchwork.freedesktop.org/patch/msgid/1461922595-11161-1-git-send-email-jani.nikula@intel.com (In reply to Jani Nikula from comment #7) > Please try this patch and report back: > http://patchwork.freedesktop.org/patch/msgid/1461922595-11161-1-git-send- > email-jani.nikula@intel.com Scratch that. Please try these two instead: http://patchwork.freedesktop.org/patch/msgid/1461933243-2140-1-git-send-email-jani.nikula@intel.com http://patchwork.freedesktop.org/patch/msgid/1461933243-2140-2-git-send-email-jani.nikula@intel.com Those patches seem to resolve the problem. Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com> (In reply to Sitsofe Wheeler from comment #9) > Those patches seem to resolve the problem. > > Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com> Thanks for testing. Pushed the first one to drm-intel-next-queued as commit a0cbe6a3f1c0e86342965430b4a775b5d35b416b Author: Jani Nikula <jani.nikula@intel.com> Date: Fri Apr 29 15:34:02 2016 +0300 drm/i915/lvds: separate border enable readout from panel fitter The second patch should not be needed. |
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Created attachment 111213 [details] dmesg ==System Environment== -------------------------- Regression: No.I fail to find a good commit. Tried drm-intel-testing 2014-08-09 commit 0c6aad835dd1b817e87e312da0350e07952ff25e Non-working platforms: Pineview(test machine: x-pnv1) ==kernel== -------------------------- 3.18.0 commit b2776bf7149bddd1f4161f14f79520f17fc1d71d ==Bug detailed description== ----------------------------- Running "./testdisplay -f 38.25,800,832,912,1024,600,603,607,624" and exit with "CTRL-C", dmesg shows WARNING: [ 242.655524] WARNING: CPU: 0 PID: 3685 at drivers/gpu/drm/i915/intel_display.c:10968 check_crtc_state+0x9a9/0x9ff [i915]() ==Reproduce steps== ---------------------------- 1. ./testdisplay -f 38.25,800,832,912,1024,600,603,607,624 2. CTRL-C to exit 3. dmesg |grep WARNING