I am running kde4.5 on opensuse11.3 with a 1920x1080 monitor.
kde believes that the workspace area is 3840x1200 although the xorg.conf file says 1920x1080
I have tried to reset the configure desktop -> display and
kcmshell4 display
both have no effect.
perhaps if I found where the settings are stored I could edit them by hand.
also had this problem with the previous KDE version 4.4.2(?)

any suggestions?

thanks

Ken

If you run "xrandr" what is it's output?

As far as KDE is aware, your system has a 3840x1200 monitor. Can you please check your Xinerama configuration?

thanks for the response
below is the output of xrandr
I am not really familiar with xinerama but its seems to be for multiple displays. I have an nvidia card and the nvidia configuration modules shows only a single monitor and that its resolution is 1920x1080

/home/ken> xrandr
Screen 0: minimum 320 x 175, current 3840 x 1200, maximum 3840 x 1200
default connected 3840x1200+0+0 0mm x 0mm
1920x1080 50.0
1680x1050 51.0
1400x1050 52.0 60.0
1280x1024 53.0 61.0 62.0
1440x900 54.0
1280x960 55.0 63.0
1152x864 56.0
1024x768 57.0 64.0 65.0 66.0 67.0 68.0
800x600 58.0 76.0 77.0 78.0 79.0 80.0 81.0 82.0 83.0 84.0
640x480 59.0 91.0 92.0 93.0 94.0 95.0 96.0 97.0
960x720 69.0 70.0
928x696 71.0 72.0
896x672 73.0 74.0
832x624 75.0
720x400 85.0
700x525 86.0 87.0
640x512 88.0 89.0 90.0
640x400 98.0
640x350 99.0
576x432 100.0
512x384 101.0 102.0 103.0 104.0 105.0
416x312 106.0
400x300 107.0 108.0 109.0 110.0 111.0
360x200 112.0
320x240 113.0 114.0 115.0 116.0
320x200 117.0
320x175 118.0
3840x1200 50.0*


thanks,
Ken

Please run:

Code: Select all

xrandr --output default --primary --mode 1920x1080

running xrandr made the display system extremely slow and did not solve the problem with wrong screen area. I tried a few other xrandr commands, after rebooting each time, and all had the same effect.

I solved the problem by going back to the nv/nouveau driver.

thanks for your help and now a few notes for whoever is interested

I have 4 modern computers each running suse 11 and KDE 4. and each with an nvidia video card (all different models). This is the only one that give me problems. of them all, the monitor on this computer is not the largest. It uses a Nvidia Gt220 video card but another has a 200 series card that works just fine. They all, aside from this one, use the binary Nvidia driver. I have not idea what the difference is but the nv/nouveau driver solves the problem for now.