Re: Graphic problem on Debian testing installed on Dell Optiplex 960
I just installed ATI proprietary driver: fglrx.
I can now access the Gnome login screen with any version of the
kernel. I however have several problems with the multi-screen
management through the Catalyst Control Center. I thus cannot use this
However, I think that this prove that the non-proprietary ATI driver
are here the source of my trouble.
Does anyone knows how to fix this ?
2012/5/3 Johan Mazel <firstname.lastname@example.org>:
> I have a Debian testing 64 bits running on a Dell Optiplex 960.
> I have three different kernels installed: 2.6.32-5, 3.2.0-1 and 3.2.0-2.
> Until a recent upgrade (through apt-get update/apt-get upgrade), I
> could not use the Gnome login screen with kernel versions 3.2.0-1 and
> 3.2.0-2: the top of the screen displayed a strange random pattern of
> pixels of many colors and the bottom of the screen was black. However,
> in this case, I was able to use GUI login, and, thus, Debian by using
> 2.6.32-5 kernel.
> After a recent upgrade, the Gnome login screen is now not even
> available with the 2.6.32-5 kernel. I only have a black screen with a
> cursor on the top-right corner and a rectangle constituted of random
> pixels in black and white located at the left of the screen and close
> to the top of the screen.
> I tried to remove the gdm3 package. This allow me reach the login
> console with the 2.6.32-5 kernel. In this case, I also have a
> rectangle constituted of random pixels in black and white located at
> the same place: left of the screen and close to the top of the screen.
> And, I still have the same bug as before with kernel versions 3.2.0-1
> and 3.2.0-2: random pattern of pixels in many colors on top of the
> screen and black on the bottom of the screen.
> I tried to use the command startx when I am in the console but there
> is a problem. I do not copy here the result but I can extract. I think
> that this problem is causing the trouble with Gnome.
> Lspci finds this graphic card:
> 01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee
> ATI RV620 LE [Radeon HD 3450] (prog-if 00 [VGA controller])
> Subsystem: Dell Device 0342
> Flags: bus master, fast devsel, latency 0, IRQ 16
> Memory at d0000000 (64-bit, prefetchable) [size=256M]
> Memory at fe9f0000 (64-bit, non-prefetchable) [size=64K]
> I/O ports at dc00 [size=256]
> Expansion ROM at fea00000 [disabled] [size=128K]
> Capabilities: <access denied>
> Kernel driver in use: radeon
> I have no idea how to fix this problem.
> I would be grateful is somebody could help me fix it.