https://bugs.kde.org/show_bug.cgi?id=498572
Bug ID: 498572
Summary: Unable to get refresh rate higher than 120Hz on Xiaomi
Monitor
Classification: Plasma
Product: KScreen
Version: 6.2.5
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: kscreen-bugs-n...@kde.org
Reporter: luigid...@outlook.com
Target Milestone: ---
SUMMARY
Trying to set my Xiaomi P27FBB-RGGL monitor to any frequency higher than 120HZ
doesn't work. Plasma enters a weird state where the screens are constantly
flapping between On and Off, the "device connected/disconnected" jingles also
start playing.
The only solution at this point is plug the HDMI cable (auto-revert doesn't
work somehow?)
STEPS TO REPRODUCE
1. Plug a Xiaomi P27FBB-RGGL monitor via HDMI
2. Change it's frequency to 144 or 165 using System Settings
OBSERVED RESULT
As described, Plasma enters a connect/disconnect loop
EXPECTED RESULT
1. It works properly
2. If it doesn't work properly at least it reverts back to previous frequency
automatically, stopping the loop
3. (this is more of a feature request). If it doesn't revert automatically,
System settings should ideally have a "forget all displays) button so I don't
have to manually remove settings files and restart
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: 6.2.5
KDE Frameworks Version: 6.9.0
Qt Version: 6.8.1
ADDITIONAL INFORMATION
I know this is a hard issue for you guys to debug so I hope i can help you with
anything you guys need.
I'm running Nobara Linux 41 (based of Fedora KDE 41) with Nvidia GPU (I've
tried both with Optimus enabled and disabled through UEFI) on a Laptop
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