Bug 129717

Version:           Unbekannt (using KDE 3.5.2, Kubuntu Package 4:3.5.2-0ubuntu18 dapper)
Compiler:          Target: i486-linux-gnu
OS:                Linux (i686) release 2.6.15-25-386

Hi!

I have a problem with the displayconfig module of kcontrol. It messes up my xorg.conf file such that Kubuntu will hang a boot up and only a console login is possible any more.

I use a Xinerama Setup with a Matrox P650 graphics card, that uses proprietary drivers compiled into the linux-kernel-headers in userspace. Perhaps this is what causes the following problem:

I have to edit the xorg.conf file with kate to contain lines like this:
Section "Device"
	Identifier	"Matrox Millennium P650 1"
	Driver		"mtx"
	Option		"OCC"
	Option		"DigitalScreen1" "on"
	Option		"Busmastering" "on"
	BusID		"PCI:1:0:0"
	Screen		0
EndSection
for each of my 2 DVI outputs of the graphics card and
Section "Screen"
	Identifier	"Display 1"
	Device		"Matrox Millennium P650 1"
	Monitor		"DELL 2001FP 1"
	DefaultDepth	24
	SubSection "Display"
		Depth		24
		Modes		"1600x1200" "1280x1024" "1152x864" "1024x768" "800x600"
	EndSubSection
EndSection
for each of my 2 displays.

When I try to enter the GUI for this (# kcmshell displayconfig) KDE does not recognize the settings of the xorg.conf file. Instead it claims both screens are in 640x480 (while they are in 1600x1200) and the driver was a "VESA" while it is "MTX". Also the options for "screen 1 right of screen 2" and for "pivot" are ignored. Also, the identification of my screens is on "custom" while the xorg.conf file sets it to "DELL 2001FP".

So far so good, nothing is screwed up. But when I enter administration mode, i.e. if I enter displayconfig as root, and if I then adjust all settings for driver, screen resolution etc... the module creates a crazy xorg.conf file with all entries like the GUI displays, i.e. VESA for driver etc, EVEN THOUGH I ENTER CORRECT VALUES INTO THE GUI.

The xorg.conf file becomes so heavily messed up that Kubuntu 6.06 refuses to boot to graphical login, but only boots to console. In this mode I have to nano the xorg.conf file to sensible settings and then enter graphical mode again.

THIS BUG IS A BIT ANNOYING. The graphical displayconfig leads users to editing the xorg.conf file with the graphical editor, which messes the file up. GUIs are good and necessary, but they have to work, IMHO.

Does displayconfig work with other cards in Xinerama?
does it work at all?

I try to remember not to touch displayconfig any more and stick with kate.

Greetinx,
Wolfgang