On Sat, Jun 28, 2008 at 11:07 AM, Torquil Macdonald Sørensen <[EMAIL PROTECTED]> wrote: > On Saturday 28 June 2008 01:11:51 Alex Deucher wrote: >> On Fri, Jun 27, 2008 at 10:35 AM, Torquil Macdonald Sørensen >> >> <[EMAIL PROTECTED]> wrote: >> > Package: xserver-xorg-video-radeon >> > Version: 1:6.8.192-1 >> > Severity: normal >> > >> > Up until the last few days, when I started my laptop (1400x1050) with an >> > external screen (LCD 1280x1024), X would automatically lower the >> > resolution so that it was appropriate for the external screen, instead of >> > the 1400x1050 it normally uses on my laptop (IBM T24 with ATI Radeon >> > Mobility 9600). It doesn't do that any more. >> >> This is an xserver change. >> >> > Now I get a cropped 1400x1050 on the external LCD instead. E.g. I can >> > only see the upper half of the KDE panel on the external screen. The >> > lowest part of the desktop is not shown. >> >> The xserver mode default mode chooser has changed. Nothing to do with >> the driver. removing the "Modes" line from your config may fix it: >> Modes "1400x1050" "1280x1024" "1280x960" "1024x768" "800x600" >> "700x525" "640x480" > > Removing the Modes line (in fact I removed DefaultDepth + Entire "Display" > subsection from the Screen Section) had no effect on this. > >> > When I try to lower the resolution to 1280x1024 using kcontrol, the >> > external screen becomes black and a 1280x1024 image is shown only on the >> > laptop screen. >> >> kcrontrol is probably not xrandr 1.2 compliant and probably uses the >> old xrandr 1.0 API which only affect one of the outputs and leads to >> problems on multi-head systems. > > Ok, maybe kcontrol isn't up to the job, I have heard before that it does not > support xrandr 1.2. I tried to use xrandr manually to change the desktop size > using xrandr with --mode and --output options. I managed to get a 1280x1024 > resolution on the laptop screen after putting the "Modes" line back into > xorg.conf (otherwise 1280x1024 was not listed as a mode for the LVDS). But > the desktop image was cropped at the bottom on both screens. I did not manage > to get a 1280x1024 "desktop geometry" to correspond to the 1280x1024 screen > resolutions on the LVDS and external screen. But I will do some more > investigating on how the xrandr command works, I guess there is some way to > do it.
if you want both heads at 1280x1024, the following should do the trick: xrandr --output LVDS --mode 1280x1024 xrandr --output VGA-0 --mode 1280x1024 It's up to kde to resize the various desktop elements when the modes change. Alex -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]