Ubuntu
xserver-xorg-video-intel package

  1. Bug #339555
  2. Comment #55

Comment 55 for bug 339555

Revision history for this message
Ilya Barygin (randomaction) wrote : Re: [i945GM] (Needs UXA, kernel 2.6.30rc2) compiz slowmotion after Jaunty upgrade

Thank you for your advice, Zack, but this kernel doesn't solve the performance problem as well. (It does, however, change the MTRR allocation as intended.)

Repository kernel:
$ uname -a
Linux corner 2.6.28-12-generic #43-Ubuntu SMP Fri May 1 19:27:06 UTC 2009 i686 GNU/Linux
$ cat /proc/mtrr
reg00: base=0x000000000 ( 0MB), size= 1024MB, count=1: write-back
reg01: base=0x03f800000 ( 1016MB), size= 8MB, count=1: uncachable

Kernel from bug 314928:
$ uname -a
Linux corner 2.6.28-13-generic #44~lp314928apw1 SMP Wed May 6 08:32:32 UTC 2009 i686 GNU/Linux
$ cat /proc/mtrr
reg00: base=0x000000000 ( 0MB), size= 1024MB, count=1: write-back
reg01: base=0x03f800000 ( 1016MB), size= 8MB, count=1: uncachable
reg02: base=0x0e0000000 ( 3584MB), size= 256MB, count=1: write-combining