https://bugs.kde.org/show_bug.cgi?id=511130
Bug ID: 511130
Summary: KDE doesn't work with custom EDID virtual displays
Classification: Plasma
Product: KScreen
Version First 6.5.0
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 186161
--> https://bugs.kde.org/attachment.cgi?id=186161&action=edit
No display shows with this EDID.
SUMMARY
Attempted to use an iPad 9th gen as a second monitor with the following
software:
Arch Linux
KDE Plasma 6.5.0 (Wayland)
Sunshine (Server)
Moonlight (Client)
Virtual Display
- Tried with krfb-virtualmonitor and custom EDID w/ Kernel parameters and
modified initramfs
I was successful in getting this to work, but wasn't able to set the virtual
monitor to any non-standard resolution or any resolution above 1080p (iPad 9th
gen is 2160x1620@60 and 4:3). I tried with multiple EDIDs, including custom
generated ones through Linux tools (cvt, edid-generator, edid-decode, etc) and
online tools like edidcraft.com as well as modified ones exported from Custom
Resolution Utility (CRU) on Windows. I have a laptop with a 4:3 2880x1800@60
display and tried this resolution as well as modifying it to 2160x1620@60. No
resolutions above 1080p showed in kscreeen-doctor or KDE settings.
STEPS TO REPRODUCE
1. Followed this guide:
https://www.azdanov.dev/articles/2025/how-to-create-a-virtual-display-for-sunshine-on-arch-linux
2.
3.
OBSERVED RESULT
EXPECTED RESULT
SOFTWARE/OS VERSIONS
Windows:
macOS:
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma:
KDE Plasma Version:
KDE Frameworks Version:
Qt Version:
ADDITIONAL INFORMATION
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