adamantivm
December 16th, 2009, 12:17 AM
After upgrading to the Karmic Koala, my dual-monitor set-up, which I had working fine for a few releases back, suddenly stopped working as expected.
Before the upgrade, I was using the following commands to switch from single-screen to dual-head
xrandr --fb 1680x2048 --output LVDS --mode 1400x1050 --pos 140x998 --output VGA --mode 1680x1050 --pos 0x0
and back
xrandr --output LVDS --auto --output VGA --off
This is a set-up I ended up with that allowed me to work with an extended desktop on two monitors with desktop acceleration enabled , which used to limit the maximum virtual screen size to 2040x2048.
Now, if I use those xrandr commands, either nothing happens, or I get a fully ruined screen (mostly black) out of which the only path I find is to restart gdm from a text console.
Has anything changed around xrandr, perhaps compiz, in Karmic that could have caused this? Any hints on where to start looking for a solution, please?
Before the upgrade, I was using the following commands to switch from single-screen to dual-head
xrandr --fb 1680x2048 --output LVDS --mode 1400x1050 --pos 140x998 --output VGA --mode 1680x1050 --pos 0x0
and back
xrandr --output LVDS --auto --output VGA --off
This is a set-up I ended up with that allowed me to work with an extended desktop on two monitors with desktop acceleration enabled , which used to limit the maximum virtual screen size to 2040x2048.
Now, if I use those xrandr commands, either nothing happens, or I get a fully ruined screen (mostly black) out of which the only path I find is to restart gdm from a text console.
Has anything changed around xrandr, perhaps compiz, in Karmic that could have caused this? Any hints on where to start looking for a solution, please?