https://bugzilla.xfce.org/show_bug.cgi?id=16400
Bug ID: 16400
Summary: Monitor unable to suspend
Classification: Xfce Core
Product: Xfce4-settings
Version: 4.12.1
Hardware: Other
OS: Linux
Status: NEW
Severity: major
Priority: Medium
Component: Display Settings
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: Xfce 4.14
Hi,
Due to a combination of Monitor hardware and graphics driver, my monitor is
unable sleep (DPMS). Whenever it tries to suspend, xfsettingsd detects that
something has changed and tries to reconfigure it. This results in the monitor
waking up again after a second.
"Configure new displays when connected" is OFF in display settings.
Hardware and software details below.
Hardware:
BENQ GW2283 monitor connected via HDMI to Rock Pi 4 SBC.
Software:
Linux 5.3.11 (also tested with 5.4.8)
X.Org 1.20.4 (also tested with 1.20.6)
Xfce 4.12
Mesa 18.3.6 (also tested with 19.3.1 and 20.0-git)
Other people also face this issue, for example with amdgpu drivers:
https://gitlab.freedesktop.org/drm/amd/issues/662
To fix it, people have modifying xfsettingsd to ignore the RRScreenChangeNotify
event (mentioned in gitlab issue above). I think xfsettingsd can be updated to
ignore this event when "Configure new displays when connected" is off.
Alternatively, an option can be added in xfconf to not check for these events
like here:
https://bugzilla.xfce.org/show_bug.cgi?id=10459
Thanks.
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