Can you please check the file permissions of /dev/dri/card* ?
libdrm in jaunty uses udev to create the device node, and I found
/dev/dri/card0 now gets mode 660 (crw-rw----), instead of 666. If you get mode
660, please try to change the mode to 666 with sudo chmod 666 /dev/dri/card*
and test performance again. For me, that gives a huge performance difference in
sauerbraten.
(Kevin's xorg.conf sets dri mode to 666, but I am not sure if that still works
now the device node is created via udev).
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Confirmed => Incomplete
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2.5.1 driver release is outrageously slow
https://bugs.launchpad.net/bugs/303011
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