SUMMARY *** Since upgrading to Plasma 5.26.90 I can't use 8000hz mouse polling. In 5.26.5 it worked fine. *** STEPS TO REPRODUCE Boot into Fedora Kinoite 38 on Plasma 5.26.90. Does not happen when I boot back into FK37 with Plasma 5.26.5. OBSERVED RESULT Sluggish and erratic mouse behaviour. EXPECTED RESULT Precise mouse control. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Fedora Kinoite KDE Plasma Version: 5.26.90 KDE Frameworks Version: 5.103.0 Qt Version: 5.15.8
Issue on Fedora 37 Kinoite with Plasma 5.27.0 too.
Does KWIN_DRM_NO_AMS=1 envvar make any different?
(In reply to Vlad Zahorodnii from comment #2) > Does KWIN_DRM_NO_AMS=1 envvar make any different? I looked up setting variables and came across https://userbase.kde.org/Session_Environment_Variables I've made $HOME/.config/plasma-workspace/env/mouse.sh containing #!/bin/bash KWIN_DRM_NO_AMS=1 Rebooted and set mouse firmware to 8000hz. No change in erratic mouse behaviour. I can't stop thinking there's a flaw in my process and I wonder how I can test if that variable has been set. Could you point me in the right direction?
(In reply to Rick Scholten from comment #3) > (In reply to Vlad Zahorodnii from comment #2) > > Does KWIN_DRM_NO_AMS=1 envvar make any different? > > I looked up setting variables and came across > https://userbase.kde.org/Session_Environment_Variables > > I've made $HOME/.config/plasma-workspace/env/mouse.sh containing > #!/bin/bash > KWIN_DRM_NO_AMS=1 > > Rebooted and set mouse firmware to 8000hz. No change in erratic mouse > behaviour. > > I can't stop thinking there's a flaw in my process and I wonder how I can > test if that variable has been set. Could you point me in the right > direction? Run "qdbus org.kde.KWin /KWin supportInformation | grep Atomic" if the envvar is properly set, you should see Atomic Mode Setting on GPU 0: false
(In reply to Vlad Zahorodnii from comment #4) > (In reply to Rick Scholten from comment #3) > > (In reply to Vlad Zahorodnii from comment #2) > > > Does KWIN_DRM_NO_AMS=1 envvar make any different? > > > > I looked up setting variables and came across > > https://userbase.kde.org/Session_Environment_Variables > > > > I've made $HOME/.config/plasma-workspace/env/mouse.sh containing > > #!/bin/bash > > KWIN_DRM_NO_AMS=1 > > > > Rebooted and set mouse firmware to 8000hz. No change in erratic mouse > > behaviour. > > > > I can't stop thinking there's a flaw in my process and I wonder how I can > > test if that variable has been set. Could you point me in the right > > direction? > > Run "qdbus org.kde.KWin /KWin supportInformation | grep Atomic" > > if the envvar is properly set, you should see > > Atomic Mode Setting on GPU 0: false Ty! "Atomic Mode Setting on GPU 0: false" appears both with and without manually setting KWIN_DRM_NO_AMS=1, and in both cases 8000hz does not work properly.
Did a clean Fedora 38 Kinoite install and now 8000hz works fine.