Desktop Virtual Resolution/Screens

KDE, opensuse 12.3 x86_64

I once had used a virtual screen size, (2560 x 2048) that is larger than physical display (1280x1024), but do not see anywhere to set this up, not in Yast or Configure Desktop.

This feature is very handy for desktop publishing, mapping, large diagrams, etc.

The setup may have been in Yast, but I haven’t seen this feature around for a long time. Is it a feature that is now (or has been long) gone?


OK krandrtray did not offer the option.

I read the xrandr man and found easier way to do this using xrandr

just need to match the --output to what you have and --mode to what you have

so from current configuration, find **output *and mode
> xrandr
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 8192 x 8192
DVI-0 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 338mm x 270mm
1280x1024 60.0
+ 75.0
1280x960 60.0
1280x800 74.9 59.8
1152x864 75.0
1280x768 74.9 59.9
1024x768 75.1 70.1 60.0
1024x576 60.0
800x600 72.2 75.0 60.3 56.2
848x480 60.0
640x480 72.8 75.0 60.0
720x400 70.1
DIN disconnected (normal left inverted right x axis y axis)
DVI-1 disconnected (normal left inverted right x axis y axis)

in this case DVI-0 is my output
mode is 1280x1024

to change to a large ‘panning screen’ of 2560x2048 (effectively doubling the X and Y for 4x larger screen area)

> xrandr --fb 2560x2048 --output DVI-0 --mode 1280x1024 --panning 2560x2048

I did this and it works OK, some Alt-Tab (task switching) glitches occur.