[ubuntu-uk] Xorg problem using too much CPU
ByteSoup
bytesoup at gmail.com
Tue Jul 20 11:12:14 BST 2010
On 20/07/10 10:57, Simon Greenwood wrote:
>
>
> On 20 July 2010 10:43, ByteSoup <bytesoup at gmail.com
> <mailto:bytesoup at gmail.com>> wrote:
>
> On 20/07/10 09:47, Simon Greenwood wrote:
> >
> > I have a similar problem with 64-bit (both 9.10 and 10.04) on a Dell
> > XPS M1330. Flash and java applications, primarily in web browsers,
> > cause the CPU usage to spin up to 100%. It even started
> happening with
> > Thunderbird 3. My solution was to have Flash disabled by default to
> > stop it happening, but that's difficult if you're developing
> video apps.
> >
> > It's possible to recover by logging out of the desktop and
> restarting
> > Xorg from a terminal, and that's really as far as I got with
> > diagnosing the problem, that it is an issue with Xorg and possibly
> > with the Nvidia drivers. However, it did really render the system
> > unusable so I've had to go back to my Mac to get work done. I
> haven't
> > raised a bug for it because, as you've found, it's very difficult to
> > get any useful diagnosis.
> >
> > Simon
>
> It seems like me and Simon are in the same boat. I need to run up a
> 32bit system on the same machine using an external HDD to
> compare. I do
> think its something to do with flash, so although its not the
> system as
> such. I do think it shows up a flaw in the way it seems hard to corner
> the problem and deal with it.
>
> Ive tried the CTRL+ALT+BACKSPACE option as suggested by Alan and the
> "sudo restart gdm" and some other combinations. I think they all
> effectively restart the desktop. The problem is they dont seem to
> release the CPU, the Xorg process seems to be very busy doing
> something
> so my conclusion is that there is another process running thats
> causing
> this and its grabbing hold of the Xorg when it comes up again.
>
> Interestingly enough even when I drop out to a tty session
> (CTRL+ALT+F1)
> "top" shows load averages of 1.x and it doesnt really settle down to
> below 0.5 even when nothing is showing running apart from top
> itself. I
> know networking is probably still running though, but I cant make
> sense
> of this. I mean at the moment im using the desktop, typing this email
> with Thunderbird open also I have firefox open with a number of
> tabs and
> my load averages are showing 0.54 0.41 0.26
>
> It seems the problem does go away if I wait 10-15 mins before
> restarting
> gdm, but its far quicker to reboot. So is there a way to find out the
> process tree of whats using Xorg if there is such a thing?
>
>
> That's exactly what I see. Does your machine have an Nvidia graphics
> card and do you use the proprietary drivers? If that's the case it is
> somewhere between the graphics drivers and Flash and how they're used
> with Xorg.
>
> s/
Hi Simon, sorry to sound a bit dumb here, but im not sure if I have
Nvidia, my "lshw" shows "intel" for display, could this sitll be nvidia?
Its a Dell E6400
sudo lshw -C display
*-display:0
description: VGA compatible controller
product: Mobile 4 Series Chipset Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci at 0000:00:02.0
version: 07
width: 64 bits
clock: 33MHz
capabilities: msi pm bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:30 memory:f6c00000-f6ffffff
memory:e0000000-efffffff(prefetchable) ioport:ef98(size=8)
*-display:1 UNCLAIMED
description: Display controller
product: Mobile 4 Series Chipset Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2.1
bus info: pci at 0000:00:02.1
version: 07
width: 64 bits
clock: 33MHz
capabilities: pm bus_master cap_list
configuration: latency=0
resources: memory:f6b00000-f6bfffff
-Mark
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