Thinkpads Forum

Hello,

I have a fairly new install of Ubuntu 9.04 64-bits, kernel 2.6.28-15, on a 15" ThinkPad T500 (2089-2RG) with Intel 4500MHD. Compiz works just fine but Google Earth flickers until unusable. Can I do anything to improve my laptop's graphics performance without any shortcomings in stability? Thanks for your help. I copy the output of a few commands:


$ glxinfo | grep direct
direct rendering: No (LIBGL_ALWAYS_INDIRECT set)


$ sudo lshw -C display
*-display:0 UNCLAIMED
description: VGA compatible controller
product: Mobile 4 Series Chipset Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 07
width: 64 bits
clock: 33MHz
capabilities: msi pm bus_master cap_list
configuration: latency=0
*-display:1 UNCLAIMED
description: Display controller
product: Mobile 4 Series Chipset Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2.1
bus info: pci@0000:00:02.1
version: 07
width: 64 bits
clock: 33MHz
capabilities: pm bus_master cap_list
configuration: latency=0


$ glxinfo | grep vendor
server glx vendor string: SGI
client glx vendor string: SGI
OpenGL vendor string: Tungsten Graphics, Inc


And from xorg.conf:
Section "Device"
Identifier "Configured Video Device"
EndSection

Section "Monitor"
Identifier "Configured Monitor"
EndSection

Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
EndSection

Ubuntu 9.04 was released when during a transition of xorg which has led to a poor performance for intel based graphic cards. There is a post on the Ubuntu forums which outlines a solution to the problem, but frankly a much easier solution would be to download and install the Alpha release of 9.10 where those issues were sorted. I have been using 9.10 alpha releases on a couple of machines for since Alpha 4 and excluding a few minor glitches which were quickly fixed, it is quite stable.

I would upgrade to 9.10 when it is released.. (late this month).

l'll do that. Thanks,

Is your problem solved with Ubuntu 9.10?

I have the same graphics card and I can help you set it up on Linux. It works perfectly here.
But with 9.10 it should work very well.

Thanks so much for offering but it is solved with Karmic