https://bugs.freedesktop.org/show_bug.cgi?id=107701
Bug ID: 107701 Summary: Asus X570ZD amdgpu display flicker at brightness level 1 Product: DRI Version: unspecified Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: dan@reactivated.net
On the Asus X570VD laptop with AMD Ryzen 7 with Radeon Vega Mobile Gfx, if you use the brightness keys to reduce the screen brightness to the minimum level under GNOME, the display flickers disturbingly.
This is reproducible under Ubuntu 18.04 with all updates applied (Linux 4.15). It's also reproducible with AMDGPU-PRO All-Open drivers installed on top. It's also reproducible under Linux 4.18.5.
It's hard to capture on camera, but you can get some appreciation of the issue in this video: https://youtu.be/tCoA45TJlAk
When the screen is in this state, the /sys/class/backlight/brightness file has value 1. If I manually adjust to value 2, the flicker goes away.
https://bugs.freedesktop.org/show_bug.cgi?id=107701
--- Comment #1 from Daniel Drake dan@reactivated.net --- Created attachment 141305 --> https://bugs.freedesktop.org/attachment.cgi?id=141305&action=edit Asus X570ZD dmesg with debug params
Typo above - product name is Asus X570ZD. Here is the dmesg log
https://bugs.freedesktop.org/show_bug.cgi?id=107701
Martin Peres martin.peres@free.fr changed:
What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |MOVED Status|NEW |RESOLVED
--- Comment #2 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/497.
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