VERY interesting. I am going to try this on my laptop tonight. What is the procedure to fail back if the new driver has issues? Just remove the backports repo, and reinstall original xserver-xorg-video-intel from the main repo?
Jason On Fri, Jan 16, 2009 at 2:30 PM, Luciano Ziegler <emaildo...@yahoo.com.br> wrote: > It's the Plain Ibex 8.10 Kernel 2.6.27, My graphic card is a Intel > Corporation Mobile GM965/GL960. I just set up the backports and the new > driver was available. > > -- > [i965, etc.] Poor graphics performance on Intel > https://bugs.launchpad.net/bugs/252094 > You received this bug notification because you are a direct subscriber > of the bug. > > Status in X.org xf86-video-intel: Confirmed > Status in "xserver-xorg-video-intel" source package in Ubuntu: In Progress > > Bug description: > I experience significant performance loss with ubuntu 8.10 alpha 3 with my > Intel DG965WH based system and SVDO/ADD2 video card. Actually, the > performance loss started with ubuntu 8.04.1; I upgraded to see if there was > any performance gain with the new version. While "glxgears" produced values > between 1580 fps and 1496 fps with ubuntu 7.04 and 7.10, respectively, now I > can only achieve something like 445 fps with ubuntu 8.10 alpha 3. I get an > error message when starting glxgears that "TTM" was not available and classic > mode would be used. Similary, the flight simulator "flightgear" achieves > frames rates of 1-2 fps only. > My suspicion is that some of the hardware acceleration features of the X3000 > system are not being used, and I don't know how to activate them with the new > xorg.conf structure and the underlying automatic configuration approach. > I would like to see the graphics performance go back to the values achieved > in ubuntu 7.04 and 7.10. > Your help / comment is greatly appreciated. > Bingo > > [Update] > Intel upstream has been in a multi-year effort to rearchitect X and the Intel > 2D and 3D driver to provide better performance. While this work is underway, > people are seeing variations in performance levels from version to version, > for a variety of reasons. There are probably multiple unrelated bugs being > reported to this bug report. > > It is important to note and remember that glxgears is *not* a benchmark tool. > It simply measures how fast the driver writes images to the screen, whereas > most 3D applications are limited by render speed, not merely blit speed. > Instead use a 3D game (flightgear, tremulous, etc.) that has a real rendering > workload to make comparisons. > > If you're definitely seeing performance problems, please do not comment onto > this bug report - it's too lengthy and rambling already, and your issue will > just be lost in the noise. Instead, make a new report and please be as > specific as possible with exact steps to reproduce and as much detail and > logs as you can. See http://wiki.ubuntu.com/X/Reporting for tips on making a > good X bug report. > -- [i965, etc.] Poor graphics performance on Intel https://bugs.launchpad.net/bugs/252094 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
