Thinkpads Forum

I have encountered a very strange phenomenon. The default intel video driver from Ubuntu Jaunty was not offering good performance and I decided to upgrade to the cutting edge version(2.8?), which failed to even load. so I was forced to revert to an older and certainly more stable version of the driver (2.4). To my surprise performance increases substantially - somehow newer drivers have managed to progressively retard performance by a huge degree! I wasn't able to watch the Dailyshow with acceptable framerate and now after the "downgrade" it plays perfectly even in fullscreen!

So my questions are:
- who is to blame for this massive retardation - outdated driver performs best, current driver sucks, cutting-edge driver doesn't even load!
- what is the best performing intel video driver version? I am now getting 36xx-37xx fps in glxgears, compared to 11xx-12xx with the stock Jaunty version. What is the best possible score? (I know they say glxgears is not a benchmark but it works)
- system reports it is unable to initiate something called "GEM", what the heck is it?

When it comes to linux support for chips commonly used on windows machines, many vendors do not care to provide (mature) drivers for linux, due to the limited ammount of users. On the other side, they also do not like to document the architecture of their products, since they do not want competitors for various reasons to know too much about how they've done things.
Intel is a laudable exeption. They have a policy to open the architectures of their product so that the community can develop drivers, or they provide closed source drivers themself.
Same with GPUs. While ATI and Nvidia kept their architectures closed, and only provided ímmature drivers or did not support older cards for newer kernels, Intel was the standard recommendation for Linux Destop systems.
The intel driver now has a quite long history and became bigger and bigger with new chipset generations. Therefore it is now undergoing a major revision, and is actually a completly new development. Your old driver is therefore more mature (but not under further development) than the newer driver, shipped with Jaunty.

You may take a look at:

https://bugs.launchpad.net/ubuntu/+sour ... bug/252094
https://wiki.ubuntu.com/X/UxaTesting
http://ubuntuforums.org/showthread.php?t=1130582

Or if you happened to speak german:
http://www.heise.de/open/Die-Woche-Ubun ... kel/137113

without battery?
没用电池吗？

Which drivers are these? I've just used the xorg-video-intel drivers and I only get ~230-250 fps with glxgears (yeah yeah, it's not a benchmark tool).

You have a GMA945, right? I don't think X60 had the X3100, but I could be wrong.