[Bug 109246] HDMI connected monitors fail to sleep and instead turn back on when amdgpu.dc=1
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Mon Aug 5 19:00:34 UTC 2019
https://bugs.freedesktop.org/show_bug.cgi?id=109246
--- Comment #23 from Tom reed <tom at reed.vg> ---
Confirmed problem. Dual monitors prevent DPMS power off.
Problem happens when triggered by screen off or manually with xset dpms force
off.
GPU is Gigabyte RX580.
Ubuntu 18.04 LTS. Kernel 5.0.
Monitors are 2 Dell S2719dc.
Problem occurs on xorg and on Wayland.
Problem occurs connected to HDMI and display port, and also with dual display
port.
A workaround is to disable auto input switching on the monitors. This solves
the problem.
Appears that when one monitor is switching inputs after turning off it wakes up
the other monitor. A race condition between the two.
--
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/dri-devel/attachments/20190805/03c299ee/attachment.html>
More information about the dri-devel
mailing list