Red Hat Bugzilla – Bug 492553
gnome-display-properties problems with multi-head and nouveau driver
Last modified: 2009-04-08 16:46:15 EDT
This was done during the nouveau driver QA test days, with the live cd.
The "gnome-display-properties" applications does correctly detect both monitors and their possible resolutions and report them as "IBM15" (internal laptop flatscreen) and "SAMSUNG" (my external samsung flatscreen). That's OK.
Problem is, that "gnome-display-properties" does not allow me to apply the changes. When pressing "apply", this error message comes:
Method "ApplyConfiguration" with signature "" on interface "org.gnome.SettingsDaemon.XRANDR" doesn't exist
xrand on the command line reports:
Screen 0: minimum 320 x 200, current 1680 x 1200, maximum 1680 x 1680
LVDS-0 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 331mm x 207mm
1680x1050 60.1*+ 50.1
VGA-1 disconnected (normal left inverted right x axis y axis)
DVI-2 connected 1600x1200+0+0 (normal left inverted right x axis y axis) 432mm x 324mm
1280x1024 75.0 60.0
1024x768 75.0 70.1 60.0
800x600 72.2 75.0 60.3 56.2
640x480 75.0 72.8 66.7 59.9
Here it's strange, that the onnectors is strangely named.
LVDS1, VGA1 and DVI1 (without "-").
Trying xrandr manually on command line gives:
[root@localhost live]# xrandr --output DVI-2 --right-of LVDS-0
xrandr: screen cannot be larger than 1680x1680 (desired size 3280x1200)
My description above was not clear.
xrandr without the kernel option "nouveau.modeset=1" reports:
LVDS-0, VGA-1 and DVI-2
xrandr with the kernel option "nouveau.modeset=1" reports:
LVDS1, VGA1 and DVI1 (without "-", and "DVI1" instead of "DVI-2").
Both the different connector naming, and gnome-display-properties not displaying a monitor name should be fixed as of xorg-x11-drv-nouveau-0.0.12-24.