On 20/07/10 10:57, Simon Greenwood wrote:


On 20 July 2010 10:43, ByteSoup <bytes...@gmail.com <mailto:bytes...@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: p...@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: p...@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

-- 
ubuntu-uk@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk
https://wiki.ubuntu.com/UKTeam/

Reply via email to