We're closing this bug since it is has been some time with no response
from the original reporter. However, if the issue still exists please
feel free to reopen with the requested information. Also, if you could,
please test against the latest development version of Ubuntu, since this
confirms
** Tags added: valid-xorg-conf
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[gutsy] horrible performance with ati open source drivers
https://bugs.launchpad.net/bugs/150863
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** Changed in: xserver-xorg-video-ati (Ubuntu)
Importance: Undecided = Medium
Status: Incomplete = Confirmed
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[gutsy] horrible performance with ati open source drivers
https://bugs.launchpad.net/bugs/150863
You received this bug notification because you are a member of Ubuntu
Bugs,
** Attachment added: Xorg.0.log
http://launchpadlibrarian.net/10284660/Xorg.0.log
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[gutsy] horrible performance with ati open source drivers
https://bugs.launchpad.net/bugs/150863
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I get similar problems with my Toshiba Tecra S1 with a Mobility 9000
R250 i.e. desktop is unbearably slow both with and without compiz going.
Feisty was fine with compiz running.
Xorg.0.log reports that DRI is enabled, however glxinfo says that
indirect rendering is being used and nothing shows
Jem, your xorg.conf is not good for the new ati driver. Try without one,
and see http://wiki.debian.org/XStrikeForce/HowToRandR12 for more
information.
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[gutsy] horrible performance with ati open source drivers
https://bugs.launchpad.net/bugs/150863
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Seems like some of the CPU thrashing has gone away with the addition of
(with DRI enabled):
Option MigrationHeuristicgreedy
EXA doesn't seem to run as well as XAA.
Glxgears still reports 77fps though.
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[gutsy] horrible performance with ati open source drivers
Jem Fry: did you try disabling DRI to see if that helps things out?
I'm not sure how that would impact your performance though, as you're
running Compiz.
3d acceleration for me with DRI disabled is horrible, but at least the
2D speeds along fine.
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[gutsy] horrible performance with ati open
Just a note to say I've got the same problem as waxhell since upgrading
to Gutsy release candidate today. Under Feisty my 1.5GHz 1.5GB Dell D600
(ATI Mobility Radeon 9000) laptop ran perfect well with open source ATI
driver and Compiz Fusion (with all the bells and whistles: wobbly
windows,
I was able to duplicate (actually make worse) the slow draw rate with DRI
enabled under XAA by using the:
Option XAANoOffscreenPixmaps Enable
With that option enabled, it sounds like most of my CPU is being used to
draw the screen. The splash for KDE is unbearably slow to watch.
I had tried
Still looks like DRI is slowing down my computer massively, even when
virtual is reduced down to my screen size.
No change in fps with glxgears and also Xorg is still thrashing at
80-100% cpu when I'm scrolling around or loading large graphical areas
in a browser. Took a look at 134817, and it
** Attachment added: My best performaing configuration in 2D
http://launchpadlibrarian.net/9892551/xorg.conf%7E
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[gutsy] horrible performance with ati open source drivers
https://bugs.launchpad.net/bugs/150863
You received this bug notification because you are a member of Ubuntu
Bugs,
** Attachment added: The xorg.log for that configuration
http://launchpadlibrarian.net/9892573/Xorg.0.log
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[gutsy] horrible performance with ati open source drivers
https://bugs.launchpad.net/bugs/150863
You received this bug notification because you are a member of Ubuntu
Bugs, which is
One slight discrepancy. the xorg.conf that I linked was wrong. The only
difference was that
option GARTSize 128 was uncommented. This is somewhat weird, as commenting
out DRI did not stop DRI form loading. The only way I can disable DRI is to
use the GARTSize option and pass a size that's
On EXA versus XAA for my configuration:
In Gutsy:
It seems that on my system EXA tends to refresh the screen in large lag blocks.
XAA seems much more smooth and the OS seems more usable.
In Feisty:
EXA seemed significantly faster than XAA and tended to tax the CPU less.
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[gutsy] horrible
** Attachment added: Xorg.0.log when DRI is enabled
http://launchpadlibrarian.net/9892595/Xorg.0.log.beforerefreshed
** Tags added: ati dri xorg
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[gutsy] horrible performance with ati open source drivers
https://bugs.launchpad.net/bugs/150863
You received this bug notification because you
Try setting Virtual 1680 1050 in the Display -subsection of screen
(where Modes is).
This looks like a dupe of 134817
** Changed in: xserver-xorg-video-ati (Ubuntu)
Status: New = Incomplete
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[gutsy] horrible performance with ati open source drivers
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