Ubuntu
xserver-xorg-video-ati package

  1. Bug #227520
  2. Comment #10

Comment 10 for bug 227520

Revision history for this message
logari81 (logari81) wrote : Re: External monitor resolution can't be changed on laptop (ati driver)

@Matt

This bug report is about a case in which the command

xrandr

reports the right resolutions for the external monitor but the user can see any changes on his display until he does a VT switch. If xrandr doesnt report/detects the right resolution for your external monitor, you have another bug lool for bug reports about edid or post a new report.

If xrandr reports 1680x1050 in the detected modes try to set it using something like

xrandr --output VGA-0 --mode 1680x1050

and if you see the right resolution just after a VT switch (Atl+Ctrl+F1, wait, Atl+Ctrl+F7) then you should keep posting in this bug report.