Bug#537979: xserver-xorg-video-radeon: hangs when trying to set the virtual screen resolution to 3520x1200

[Lukasz Janyst]

Package: xserver-xorg-video-radeon
Version: 1:6.9.0-1+lenny4
Severity: normal

Hello,

   I am trying to run Xorg on two displays. I want the first of them ("HP")
to be connected to the DVI port and use the resolution of 1920x1200 and
the second one ("NEC") to be connected to the VGA port and use the resolution
of 1600x1200. Also I want the NEC display to be located to the right of the
HP display. Please refer to the attached configuration file for details.
When I try to start the xserver with this configuration it displays
garbage one the screens and hangs.

   Everything works as expected when I decrease the resolution of the NEC
display to 1400x1050 and set the virtual screen to the resolution of 3456x1200.
Trying to increase the horizontal component of the resolution to be more
than 3456 causes the xserver to hang.

   Thanks in advance for your time!

Cheers,
   Lukasz

-- Package-specific info:
Contents of /var/lib/x11/X.roster:
xserver-xorg

/var/lib/x11/X.md5sum does not exist.

X server symlink status:
lrwxrwxrwx 1 root root 13 2009-07-21 11:51 /etc/X11/X -> /usr/bin/Xorg
-rwxr-xr-x 1 root root 1901168 2009-02-20 18:14 /usr/bin/Xorg

Contents of /var/lib/x11/xorg.conf.roster:
xserver-xorg

VGA-compatible devices on PCI bus:
01:05.0 VGA compatible controller: ATI Technologies Inc Radeon 3100 Graphics

/etc/X11/xorg.conf does not match checksum in /var/lib/x11/xorg.conf.md5sum.

Xorg X server configuration file status:
-rw-r--r-- 1 root root 888 2009-07-22 08:01 /etc/X11/xorg.conf

Contents of /etc/X11/xorg.conf:
Section "InputDevice"
	Identifier	"Keyboard"
	Driver		"kbd"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc105"
	Option		"XkbLayout"	"pl"
EndSection

Section "InputDevice"
	Identifier	"Mouse"
	Driver		"mouse"
EndSection

Section "Device"
	Identifier	"Video0"
	Driver		"radeon"
	Option		"monitor-VGA-0"		"Nec"
	Option		"monitor-DVI-0"		"HP"
EndSection

Section "Monitor"
    Identifier "HP"
    Option "PreferredMode"  "1920x1200"
    Option "Position"       "0 0"
EndSection

Section "Monitor"
    Identifier "Nec"
    Option "PreferredMode"  "1600x1200"
    Option "Position"       "1920 0"
EndSection

Section "Screen"
    Identifier      "Screen"
    Device          "Video0"
    Monitor         "HP"
    DefaultDepth    24
    SubSection "Display"
        Depth          24
        Modes         "1920x1200" "1600x1200"
        Virtual       3520 1200
    EndSubSection
EndSection


No Xorg X server log files found.


-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.26-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages xserver-xorg-video-radeon depends on:
ii  libc6                         2.9-12     GNU C Library: Shared libraries
ii  xserver-xorg-core             2:1.4.2-11 Xorg X server - core server

xserver-xorg-video-radeon recommends no packages.

xserver-xorg-video-radeon suggests no packages.

-- no debconf information