https://bugzilla.kernel.org/show_bug.cgi?id=201505
Bug ID: 201505 Summary: Resume from suspend does not power up the display Product: Drivers Version: 2.5 Kernel Version: 4.19 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: 0xe2.0x9a.0x9b@gmail.com Regression: No
Resuming the machine from suspend-to-ram no longer restores power to the display attached to an AMD GPU in Linux 4.19 (assuming the display has switched to sleep mode by itself because the computer hasn't been in use for a while).
If the display is still powered on when resuming, it ends up blank.
Linux 4.18 did not contain this bug.
Kernel: 4.19 Module: amdgpu GPU: R9 390
https://bugzilla.kernel.org/show_bug.cgi?id=201505
--- Comment #1 from Michel Dänzer (michel@daenzer.net) --- Please attach the output of dmesg.
https://bugzilla.kernel.org/show_bug.cgi?id=201505
--- Comment #2 from Jan Ziak (http://atom-symbol.net) (0xe2.0x9a.0x9b@gmail.com) --- Created attachment 279135 --> https://bugzilla.kernel.org/attachment.cgi?id=279135&action=edit dmesg
dmesg without any resume-from-suspend.
https://bugzilla.kernel.org/show_bug.cgi?id=201505
--- Comment #3 from Jan Ziak (http://atom-symbol.net) (0xe2.0x9a.0x9b@gmail.com) --- Created attachment 279137 --> https://bugzilla.kernel.org/attachment.cgi?id=279137&action=edit dmesg with resume-from-suspend
dmesg with resume-from-suspend. It contains 2 amdgpu failures to send a message.
https://bugzilla.kernel.org/show_bug.cgi?id=201505
Alex Deucher (alexdeucher@gmail.com) changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |alexdeucher@gmail.com
--- Comment #4 from Alex Deucher (alexdeucher@gmail.com) --- Can you bisect?
https://bugzilla.kernel.org/show_bug.cgi?id=201505
--- Comment #5 from Jan Ziak (http://atom-symbol.net) (0xe2.0x9a.0x9b@gmail.com) --- Created attachment 279151 --> https://bugzilla.kernel.org/attachment.cgi?id=279151&action=edit bisect.log
I bisected the issue but encountered some inconsistencies along the way:
- The bisected commit ends up with a white display after resume-from-suspend, while I was expecting a blank display.
- I started bisecting with v4.18 good and v4.19 bad. The bisected commit has date 25 may 2018, while 4.18 has been released on 12 aug 2018.
https://bugzilla.kernel.org/show_bug.cgi?id=201505
Jan Ziak (http://atom-symbol.net) (0xe2.0x9a.0x9b@gmail.com) changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |OBSOLETE
--- Comment #6 from Jan Ziak (http://atom-symbol.net) (0xe2.0x9a.0x9b@gmail.com) --- I am resolving this issue as obsolete because I stopped using R9 390 as a primary GPU some time ago. If somebody can still reproduce this bug please reopen this issue.
dri-devel@lists.freedesktop.org
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