>> $ xrandr --output VGA --auto --right-of LVDS >> xrandr: screen cannot be larger than 1280x1280 (desired size 2304x1024) > > You have to set the X virtual screen size before starting X. Then > when you attach a monitor, you use xrandr to "carve up" a portion of > the virtual screen to show on the external screen. > > The virtual size option is something you set in xorg.conf. I'll let > you look up the actual name of the directive and its details. > >> with the VGA setup at 1280x1024 i try to set the laptop display. >> I have no idea where the "desired size" is coming from > > (google usually helps with weird error messages, especially from > widely used software)
right... asleep at the wheel on that one. Thanks. I ran X -configure and made a few edits and voila! Problem solved. Though i still have the backlight problem. I tried xrandr --output LVDS --set BACKLIGHT_CONTROL native which doesn't seem to do anything, and xrandr --output LVDS --set BACKLIGHT_CONTROL legacy which now gives me a range BACKLIGHT: 0 (0x00000000) range: (0,255) adjusting it doesn't seem to do anything. xbacklight -set 100 BACKLIGHT: 0 (0x00000000) range: (0,255) xbacklight -set 50 BACKLIGHT: 0 (0x00000000) range: (0,255) -- Later Peter
