I have the same problem with the on-board graphics card of a Gigabyte GA-MA78GPM-DS2H motherboard. Lspci output:
01:05.0 VGA compatible controller: ATI Technologies Inc Radeon HD 3200 Graphics (prog-if 00 [VGA controller]) Subsystem: Giga-byte Technology Device d000 Flags: bus master, fast devsel, latency 0, IRQ 10 Memory at d0000000 (32-bit, prefetchable) [size=256M] I/O ports at ee00 [size=256] Memory at fdfe0000 (32-bit, non-prefetchable) [size=64K] Memory at fde00000 (32-bit, non-prefetchable) [size=1M] Expansion ROM at <unassigned> [disabled] Capabilities: [50] Power Management version 3 Capabilities: [a0] MSI: Mask- 64bit+ Count=1/1 Enable- I don't have any more information to add to the extensive test results from Jacek Politowski, except perhaps for my pretty generic xorg.conf (see attachment). I am using unstable with a stock 2.6.29 kernel. Downgrading to 6.9.0 worked for me as well. I can confirm that the image on the screen with the broken driver is some sort of mixup of what the screen looked like just before things broke. At one point during my downgrade things were half fixed and I got almost the entire original image back. I could read most of the text in my terminals. This happened even after a soft reboot. Please let me know if you need any more details on my hardware cofiguration. Unfortunately I am not in a position to reboot this computer a lot right now for testing different versions, because it is being used for long simulations. Astrid
# xorg.conf (X.Org X Window System server configuration file) # # This file was generated by dexconf, the Debian X Configuration tool, using # values from the debconf database. # # Edit this file with caution, and see the xorg.conf manual page. # (Type "man xorg.conf" at the shell prompt.) # # This file is automatically updated on xserver-xorg package upgrades *only* # if it has not been modified since the last upgrade of the xserver-xorg # package. # # If you have edited this file but would like it to be automatically updated # again, run the following command: # sudo dpkg-reconfigure -phigh xserver-xorg Section "InputDevice" Identifier "Generic Keyboard" Driver "kbd" Option "XkbRules" "xorg" Option "XkbModel" "pc104" Option "XkbLayout" "us" EndSection Section "InputDevice" Identifier "Configured Mouse" Driver "mouse" EndSection Section "InputDevice" Driver "wacom" Identifier "stylus" Option "Device" "/dev/input/wacom" #USB ONLY Option "Type" "stylus" Option "USB" "on" #USB ONLY EndSection Section "InputDevice" Driver "wacom" Identifier "eraser" Option "Device" "/dev/input/wacom" #USB ONLY Option "Type" "eraser" Option "USB" "on" #USB ONLY EndSection Section "InputDevice" Driver "wacom" Identifier "cursor" Option "Device" "/dev/input/wacom" #USB ONLY Option "Type" "cursor" Option "Mode" "relative" Option "USB" "on" #USB ONLY EndSection Section "Extensions" Option "Composite" "enable" EndSection Section "Device" Identifier "Configured Video Device" Driver "radeon" Option "XAANoOffscreenPixmaps" "true" # Option "DRI" "off" # Option "NoAccel" "true" # Option "R4xxATOM" "true" EndSection Section "Monitor" Identifier "Configured Monitor" EndSection Section "Screen" Identifier "Default Screen" Monitor "Configured Monitor" EndSection Section "ServerLayout" Identifier "Default Layout" Screen "Default Screen" InputDevice "Generic Keyboard" # InputDevice "Configured Mouse" "SendCoreEvents" InputDevice "stylus" "SendCoreEvents" InputDevice "eraser" "SendCoreEvents" InputDevice "cursor" "SendCoreEvents" EndSection