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[dnyaga <daniel.nyaga@xxxxxxxxx>]

Public bug reported:

Binary package hint: xorg

I have Gateway M62 laptop (Intel Core 2 Duo T5750; ATI Mobility Radeon
HD 2600 [RV630/M76], 4GB RAM). I upgraded from Jaunty about a week ago.
My system is constantly updated, in sync with changes in the Karmic
repository.

Xorg performance has been terrible. With fglrx (installed from the
Ubuntu repos), Xorg sometimes pins down one core completely, for
prolonged periods (95-100% CPU usage). The problem may or may not go
away on reboot (unpredictable, indeterminate). When it is "behaving",
the system is snappy and usable. I purged my fglrx (and all config files
and all related packages) and reinstalled afresh from the Karmic repos.
No change.

I do not run compositing on my desktop. I have a dual screen
configuration (with an external 19 inch Acer monitor, see attached
Xorg.conf files).

Now, fglrx is actually the good one this time round (surprisingly). When
I _purged_ fglrx, I decided to run on the open source drivers for a
while.  Performance with the open source drivers is not merely bad - its
goddamn awful. An example - It is impossible to run Netbeans or Eclipse
and get any work done. Screen painting is so slow that there is a lag of
up to 5 seconds between a click and a response. Dragging a small window
(like Gnome terminal) is an ulcer inducing experience. This system is
not performance, memory or load challenged.

Booting without an xorg.conf with the aim of running a non mirrored dual
screen setup is presently not an option.

Other problems (not directly related to xorg) include the inability of
gnome-display-properties and grandr to correctly set up the screen
resolutions of both screens. These should (and probably, will) be
reported as separate bugs, but  I have mentioned them here for context.

I have attached:
(1) A screenshot of gnome-terminal (top) showing the load
(2) My present xorg.conf, generated by amdcccle
(3) The xorg.conf used with the -radeon driver)
(4) An Xorg.conf that previously worked well with fglrx (I keep /etc under version control), under Jaunty
(5) An Xorg.conf that previously worked well with the open source driver, under Jaunty

ProblemType: Bug
Architecture: amd64
Date: Fri Oct  2 11:05:10 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: fglrx
Package: xserver-xorg 1:7.4+3ubuntu5
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=en_US.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-11.36-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu5
 libgl1-mesa-glx 7.6.0~git20090817.7c422387-0ubuntu6
 libdrm2 2.4.13-1ubuntu1
 xserver-xorg-video-intel 2:2.8.1-1ubuntu2
 xserver-xorg-video-ati 1:6.12.99+git20090825.fc74e119-0ubuntu2
SourcePackage: xorg
Uname: Linux 2.6.31-11-generic x86_64
system:
 distro:             Ubuntu
 architecture:       x86_64kernel:             2.6.31-11-generic

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug

-- 
High Xorg CPU usage (95-99%): Karmic x86-64, fglrx, ATI Mobility Radeon HD 2600
https://bugs.launchpad.net/bugs/440448
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