https://bugzilla.kernel.org/show_bug.cgi?id=206053
Bug ID: 206053
Summary: Lock screen Black after idle with amdgpu.dc=1
Product: Drivers
Version: 2.5
Kernel Version: 4.19+
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - non Intel)
Assignee: drivers_video-...@kernel-bugs.osdl.org
Reporter: eutychio...@gmail.com
Regression: No
Created attachment 286565
--> https://bugzilla.kernel.org/attachment.cgi?id=286565&action=edit
mydmesg
I am having a system with rx 550 polaris using amdgpu kernel driver and Mesa
19.3+.
when the screen gets idle locked with
lightlocker,xscreensaver,xfce4-screensaver the screen cannot get signal back
and i get a black screen. The screen lockers work because if i enter my passwd
and press enter i can login in the desktop.
Additional info: If i lock/blank the screen manually and move them mouse the
screen gets the signal back like it should.Issue happens across Debian and Arch
distributions.Monitor is connected with an hdmi 2.0 cable.
Workaround: Adding amdgpu.dc=0 in grub resolves the issue for all screen
lockers in my system, but disables amd display code.
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