https://bugs.freedesktop.org/show_bug.cgi?id=107465
Bug ID: 107465 Summary: Weird resolution Product: DRI Version: XOrg git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: germano.massullo@gmail.com
Videocard: RX480 OS: Fedora 28 KDE Kernel 4.17.9-200.fc28.x86_64
Sometimes when I poweroff the screen, then after some time I turn on it again, the system cannot recognize native screen resolution, and sets it to a weird one. In Plasma system settings, the monitor name is unknown and the native resolution is missing (1600x1050), other resolutions are available instead.. After playing with some resolutions, suddendly the screen name (ViewSonic etc.) returns back.
MrCooper user in #radeon Freenode chat, suggested me to start the system with amdgpu.dc=0 flag. 24 hours of testing seems to confirm that such flag fixes the problem.
I attach dmesg and xorg.0.log of system experiencing the problem
https://bugs.freedesktop.org/show_bug.cgi?id=107465
--- Comment #1 from Germano Massullo germano.massullo@gmail.com --- Created attachment 140947 --> https://bugs.freedesktop.org/attachment.cgi?id=140947&action=edit Xorg.0.log
https://bugs.freedesktop.org/show_bug.cgi?id=107465
--- Comment #2 from Germano Massullo germano.massullo@gmail.com --- Created attachment 140948 --> https://bugs.freedesktop.org/attachment.cgi?id=140948&action=edit dmesg
https://bugs.freedesktop.org/show_bug.cgi?id=107465
Germano Massullo germano.massullo@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Summary|Weird resolution |System does not recognize | |native screen resolution
https://bugs.freedesktop.org/show_bug.cgi?id=107465
Michel Dänzer michel@daenzer.net changed:
What |Removed |Added ---------------------------------------------------------------------------- Attachment #140947|text/x-log |text/plain mime type| |
https://bugs.freedesktop.org/show_bug.cgi?id=107465
Germano Massullo germano.massullo@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Summary|System does not recognize |amdgpu.dc=1 triggers |native screen resolution |graphic card not | |recognizing native screen | |resolution
https://bugs.freedesktop.org/show_bug.cgi?id=107465
--- Comment #3 from Germano Massullo germano.massullo@gmail.com --- Just a clarification: title "amdgpu.dc=1" is not meant as having amdgpu.dc=1 as setted boot parameter, the situation is: no boot parameter = problem triggered amdgpu.dc=0 = no problem
https://bugs.freedesktop.org/show_bug.cgi?id=107465
Martin Peres martin.peres@free.fr changed:
What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |MOVED Status|NEW |RESOLVED
--- Comment #4 from Martin Peres martin.peres@free.fr --- -- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.
You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/471.
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