Created attachment 136848 [details] [drm:wait_panel_status [i915]] *ERROR* PPS state mismatch Linux mirela3 4.15.0-rc8 #1 SMP Mon Jan 15 03:20:02 EET 2018 x86_64 GNU/Linux root@mirela3:~# dmesg | grep drm [ 3.408446] [drm] Memory usable by graphics device = 2048M [ 3.408450] fb: switching to inteldrmfb from simple [ 3.408647] [drm] Replacing VGA console driver [ 3.416463] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 3.416465] [drm] Driver supports precise vblank timestamp query. [ 3.432735] [drm] Initialized i915 1.6.0 20171023 for 0000:00:02.0 on minor 0 [ 3.471354] fbcon: inteldrmfb (fb0) is primary device [ 3.744312] [drm:wait_panel_status [i915]] *ERROR* PPS state mismatch [ 4.416260] [drm:wait_panel_status [i915]] *ERROR* PPS state mismatch [ 4.576104] [drm:wait_panel_status [i915]] *ERROR* PPS state mismatch [ 4.576138] [drm:wait_panel_status [i915]] *ERROR* PPS state mismatch [ 4.989326] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device Linux mirela3 4.14.14 #1 SMP Wed Jan 17 16:23:03 EET 2018 x86_64 GNU/Linux root@mirela3:~# dmesg | grep drm [ 3.061868] [drm] Memory usable by graphics device = 2048M [ 3.061872] fb: switching to inteldrmfb from simple [ 3.062002] [drm] Replacing VGA console driver [ 3.069542] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 3.069543] [drm] Driver supports precise vblank timestamp query. [ 3.104507] [drm] Initialized i915 1.6.0 20170818 for 0000:00:02.0 on minor 0 [ 3.145285] fbcon: inteldrmfb (fb0) is primary device [ 3.420271] [drm:wait_panel_status [i915]] *ERROR* PPS state mismatch [ 4.092144] [drm:wait_panel_status [i915]] *ERROR* PPS state mismatch [ 4.252062] [drm:wait_panel_status [i915]] *ERROR* PPS state mismatch [ 4.252098] [drm:wait_panel_status [i915]] *ERROR* PPS state mismatch [ 4.668371] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device Linux mirela3 4.9.77 #1 SMP Wed Jan 17 16:53:32 EET 2018 x86_64 GNU/Linux root@mirela3:~# dmesg | grep drm [ 2.979984] [drm] Initialized [ 3.060989] [drm] Memory usable by graphics device = 2048M [ 3.060992] fb: switching to inteldrmfb from simple [ 3.061086] [drm] Replacing VGA console driver [ 3.067266] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 3.067268] [drm] Driver supports precise vblank timestamp query. [ 3.118712] [drm] Initialized i915 1.6.0 20160919 for 0000:00:02.0 on minor 0 [ 3.123224] fbcon: inteldrmfb (fb0) is primary device [ 4.599801] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
Hello Doru, Could you please share a dmesg from boot till issue with debug information, drm.debug=0x1e log_bug_len=2M(or bigger) parameter on grub. Also what is the machine doing at the time this happens? Thank you.
I can see the same error on a Haswell machine, Fedora kernel 4.14.18-300.fc27.x86_64. I'll try to post a debug log after next reboot.
Created attachment 137263 [details] dmesg with drm.debug=0x1e log_buf_len=4M Here's my dmesg.
Thanks for the update Dominik. Reopening.
This should be fixed in drm-tip by commit 7c2e017e32e1bc12e56760458568a166e1f13353 Author: Imre Deak <imre.deak@intel.com> Date: Wed Nov 29 19:51:37 2017 +0200 drm/i915: Avoid PPS HW/SW state mismatch due to rounding I sent now a backport request to stable trees starting from 4.9. I'll close this once the change is merged in stable trees.
(In reply to Imre Deak from comment #5) > This should be fixed in drm-tip by > > commit 7c2e017e32e1bc12e56760458568a166e1f13353 Err, the correct ID is commit 5643205c6340b565a3be0fe0e7305dc4aa551c74 > Author: Imre Deak <imre.deak@intel.com> > Date: Wed Nov 29 19:51:37 2017 +0200 > > drm/i915: Avoid PPS HW/SW state mismatch due to rounding > > I sent now a backport request to stable trees starting from 4.9. I'll close > this once the change is merged in stable trees.
(In reply to Imre Deak from comment #5) > I sent now a backport request to stable trees starting from 4.9. I'll close > this once the change is merged in stable trees. We only track bugs here until we've fixed them in our trees, not until stable backports. Thanks for the report and fix, closing. Please reopen if the problem persists with that commit.
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.