https://bugs.kde.org/show_bug.cgi?id=385961
Bug ID: 385961 Summary: using xrandr --transform in order to display a black bar on skylake leads to weird bugs Product: kwin Version: 5.11.1 Platform: Neon Packages OS: Linux Status: UNCONFIRMED Severity: normal Priority: NOR Component: xrandr Assignee: kwin-bugs-n...@kde.org Reporter: xapi...@gmx.net Target Milestone: --- on different testcomputers i manage to use --transform to avoid stretching a 4:3 image to a 16:9 screen.. it properly moves the image to the left edge and displays a black bar on the right side. --set 'scaling mode' Center is not working in these cases because the option is not recognized on external screens .. this only works on laptops (embedded displays for me) therefore i use --transform! i testet it on a new pc in our school with an intel skylake cpu and it made the screen flash like crazy once and most of the time it properly scales plasma and the area where i can move my mouse but i can still maximize all my windows to the whole sceenarea it looks really weird - everything is contained to the correct rectangle, i see a black bar on the right sight but windows can cover this area nevertheless... this is the line i am using and i don't think the line is the problem - as i said it works on all the other computers: echo "exec xrandr --output $DISPLAY1 --mode $RESOLUTION --primary $TRANSFORM --output $DISPLAY2 --mode $RESOLUTION --same-as $DISPLAY1 &" where TRANSFORM="--transform 1.3330078125,0,0,0,1,0,0,0,1" for example in order to scale the image proportionally to a 1024x768 image on a full hd screen i tried several other transformations and the result is always the same. -- You are receiving this mail because: You are watching all bug changes.