| Summary: | Xorg fails to thaw from hibernate with intel errors | ||||||
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| Product: | DRI | Reporter: | JM9 <jhnmlkvch9> | ||||
| Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Status: | CLOSED INVALID | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Severity: | critical | ||||||
| Priority: | medium | CC: | intel-gfx-bugs | ||||
| Version: | unspecified | ||||||
| Hardware: | x86-64 (AMD64) | ||||||
| OS: | Linux (All) | ||||||
| Whiteboard: | |||||||
| i915 platform: | HSW | i915 features: | power/suspend-resume | ||||
| Attachments: |
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Description
JM9
2016-03-19 19:15:50 UTC
(In reply to JM9 from comment #0) > After a successful hibernation from X, attempting to thaw does not work. You don't specify the kernel version... please try v4.5 or v4.6-rc5 or later. Please add drm.debug=14 module parameter, and attach dmesg all the way from boot to the problem. My kernel version is: 4.5.1-1-ARCH #1 SMP PREEMPT Thu Apr 14 19:19:32 CEST 2016 x86_64 GNU/Linux I tried 4.6-rc5 as suggested. Still no dice. Still need that dmesg with drm.debug=0xe... Created attachment 124131 [details]
dmesg with drm.debug=0xe
I've attached the full dmesg with elevated debug level.
Is this information enough? It is a real pain when you lose state if notebook accidentally runs out of battery and hibernates. Any chance of this bug getting fixed? Let me know if you need more logs/debug info. thanks! (In reply to JM9 from comment #4) > Created attachment 124131 [details] > dmesg with drm.debug=0xe > > I've attached the full dmesg with elevated debug level. Not seeing anything really wrong there. It seems to resume just find, and the display should be up and running. I did notice that the backlight a perhaps a bit dim after resume: [ 8.231922] [drm:intel_panel_actually_set_backlight] set backlight PWM = 244 whereas before suspend it was at max (4882). You may want to try to force it to the max to see if that "fixes" things for you: # cat /sys/class/backlight/intel_backlight/max_brightness > /sys/class/backlight/intel_backlight/brightness The unclaimed register errors look harmless (I think they might be coming from the code that resets the frame start delays, as that code doesn't do the necessary power domain checks). Unfortunately, that is not it. I get a black screen (looks like no backlight) when I thaw. I can't get the screen to turn on even entering commands blindly. I was hoping this way of simulating a hibernation (per kernel documentation) would turn up something. If the unclaimed registers has nothing to do with hibernation then I'm afraid I don't know how to get any useful info when the thaw turns up a blank screen. Any help in trying to retrieve useful info will be appreciated. journalctl --boot=-1 did not turn up anything suspicious. We seem to have neglected the bug quite a bit, apologies. jhnmlkvch9@gmail.com, since there has been quite a lot improvements pushed in kernel that will benefit to your system, please re-test with latest kernel and mark as REOPENED if you can reproduce (and attach kernel log) and RESOLVED/* if you cannot reproduce. This same comment can be found in bug 93574. based on the lack of activity the bug will be closed as invalid. also a comment from Ville looks like is not a issue. If you encounter the problem again please make sure you open a new bug |
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