I am running into a similar situation: after a fresh Karmic install (lpia
architecture) in my machine, the screen froze completely seconds after logging
in (including the mouse).
The only solution was to enter in safe mode via grub and disable desktop
effects. If I enable them, things work for a few seconds until the screen
freezes. For example, I can click on a few menus, move windows, etc. and I see
the right effects (fade in, fade out, etc.) until it freezes.
I have the same graphics (82945G/GZ), in a CoolBox Minidesk 2002
computer (Atom 330, 2GB Ram, FoxConn motherboard).
I installed Ubuntu Karmic 9.10 with the alternate installer for lpia
architecture.
My xserver-xorg-video-intel package version is 2:2.9.0-1ubuntu2
The compiz-check script prints this:
Gathering information about your system...
Distribution: Ubuntu 9.10
Desktop environment: GNOME
Graphics chip: Intel Corporation 82945G/GZ Integrated Graphics
Controller (rev 02)
Driver in use: intel
Rendering method: AIGLX
Checking if it's possible to run Compiz on your system...
Checking for texture_from_pixmap... [ OK ]
Checking for non power of two support... [ OK ]
Checking for composite extension... [ OK ]
Checking for FBConfig... [ OK ]
Checking for hardware/setup problems... [ OK ]
And lspci -v prints this:
00:00.0 Host bridge: Intel Corporation 82945G/GZ/P/PL Memory Controller Hub
(rev 02)
Subsystem: Foxconn International, Inc. Device 0d4b
Flags: bus master, fast devsel, latency 0
Capabilities: access denied
Kernel driver in use: agpgart-intel
Kernel modules: intel-agp
00:02.0 VGA compatible controller: Intel Corporation 82945G/GZ Integrated
Graphics Controller (rev 02)
Subsystem: Foxconn International, Inc. Device 0d4b
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at fea8 (32-bit, non-prefetchable) [size=512K]
I/O ports at dc00 [size=8]
Memory at d000 (32-bit, prefetchable) [size=256M]
Memory at fea4 (32-bit, non-prefetchable) [size=256K]
Capabilities: access denied
Kernel driver in use: i915
Kernel modules: i915
--
[i945] [i945] (UXA) Intel Corporation 82945G/GZ Integrated Graphics Controller
[8086:2772] (rev 02) freezes
https://bugs.launchpad.net/bugs/445056
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