Public bug reported:
Binary package hint: xserver-xorg
For starters, let me state that I am aware that this is really an ATI
driver or fglrx driver problem, and not really an xserver-xorg problem.
Also, I have read several bugs already that discuss lockups and other
issues with the Radeon Mobility M300 chip. My problem is different, and
I have not found anything that discusses it. I'm hoping this will boil
down to just an xorg.conf change.
My problem is that my X11 performance has decreased dramatically since I
upgraded from breezy to dapper. For normal operations, X11 performs
fine, but there are certain types of operations that are very slow. I
don't know whether it's DRI, 2D acceleration, etc. -- I haven't been
following xorg developments closely enough to speak intelligently about
it! In any case, frozen-bubble and vmware are both intolerably slow,
and they were both usable on this machine with breezy and even on my
much older and much slower machine which had, of course, completely
different hardware. I'm not sure what has changed that has caused my
X11 performance to be so slow. I have used the normal "ati" drivers as
detected at the time of installing dapper, and I have also tried fglrx
drivers both by downloading the latest version of the proprietary
drivers from atitech.com and by installing the slightly older xorg-
driver-fglrx package from "restricted". In all cases, I have verified
that I am actually using the fglrx driver. (I haven't done something
like installing the driver and forgetting to change xorg.conf.) I
haven't experienced any of the black screen or lockup problems others
have reported. I have tried with and without adding the RenderAccel
option to xorg.conf.
Please let me know what else I should try or what other information I
should provide. I will attach my xorg.conf to this bug report once I
remove all the changes that didn't work. :-)
** Affects: xorg (Ubuntu)
Importance: Untriaged
Status: Unconfirmed
--
regression: poor X11 performance on Dell Latitude D810
https://launchpad.net/bugs/56100
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