* Display resolution and refresh rate can be forced using a property.
Other modes reported as supported by the display are ignored when forcing
a specific mode.
* Force resolution and refresh rate for headless mode as well.
This is based on following 4 commits with further updates.
Author: Chih-Wei Huang <cwhuang@linux.org.tw>
Date: Wed Sep 19 22:57:32 2018 +0800
drm_hwcomposer: allow to force mode by a property
The desired resolution could be set by property debug.drm.mode.force.
The other modes are ignored.
Author: Konsta <konsta09@gmail.com>
Date: Sun Dec 5 15:40:40 2021 +0200
drm_hwcomposer: use first refresh rate reported by the display
* Android can switch between different refresh rates which
can lead to display changing modes in some cases.
* Use the first refresh rate reported by the display when
forcing the resolution unless specified otherwise.
Author: Konsta <konsta09@gmail.com>
Date: Tue Jan 25 17:46:33 2022 +0200
drm_hwcomposer: Default to 1920x1080 resolution for headless mode
Author: Konsta <konsta09@gmail.com>
Date: Tue Feb 1 17:40:43 2022 +0200
drm_hwcomposer: Allow setting resolution for headless mode
e2e9c8cff7