Gnome desktop freeze

Kent Borg kentborg at borg.org
Tue Apr 6 12:42:50 UTC 2010


Steve Flynn wrote:
> Can you trace the freezing to any specific action or is it totally
> random as far as you can tell.

I have also been having freezes. I haven't noticed any correlations with
other activities. I am running a Panasonic W4 notebook. It ran solidly
on 9.04, but 9.10 freezes every day or two. If I am remembering
correctly, the mouse still moves but the seconds on the menubar clock
are frozen, the system monitor menubar widget is also frozen, nothing on
the screen but the mouse pointer is changing. The disk light will
flicker a little. When I press the power button (which should hibernate)
there is a little disk light flicker, but then nothing.

ctrl-alt-f2 does not switch me to a text console. Yesterday I tried to
ssh in from another machine, but my machine didn't seem to exist.

The morning's forced reboot was at 8AM, here is my syslog file around
that time:
> Apr 6 07:40:11 bottom wpa_supplicant[1381]: CTRL-EVENT-SCAN-RESULTS
> Apr 6 07:42:11 bottom wpa_supplicant[1381]: CTRL-EVENT-SCAN-RESULTS
> Apr 6 07:44:11 bottom wpa_supplicant[1381]: CTRL-EVENT-SCAN-RESULTS
> Apr 6 07:46:11 bottom wpa_supplicant[1381]: CTRL-EVENT-SCAN-RESULTS
> Apr 6 07:48:11 bottom wpa_supplicant[1381]: CTRL-EVENT-SCAN-RESULTS
> Apr 6 07:50:11 bottom wpa_supplicant[1381]: CTRL-EVENT-SCAN-RESULTS
> Apr 6 07:52:11 bottom wpa_supplicant[1381]: CTRL-EVENT-SCAN-RESULTS
> Apr 6 08:00:47 bottom kernel: imklog 4.2.0, log source =
> /var/run/rsyslog/kmsg started.
> Apr 6 08:00:47 bottom rsyslogd: [origin software="rsyslogd"
> swVersion="4.2.0" x-pid="1031" x-info="http://www.rsyslog.com"] (re)start
> Apr 6 08:00:48 bottom rsyslogd: rsyslogd's groupid changed to 103
> Apr 6 08:00:48 bottom rsyslogd: rsyslogd's userid changed to 101
> Apr 6 08:00:48 bottom kernel: [ 0.000000] Initializing cgroup subsys
> cpuset
> Apr 6 08:00:48 bottom kernel: [ 0.000000] Initializing cgroup subsys cpu
> Apr 6 08:00:48 bottom kernel: [ 0.000000] Linux version
> 2.6.31-20-generic (b

Steve Flynn wrote:
> If your machine really is locking up quite hard, using the sysreq keys
> to attempt as clean a shutdown as possible will be useful. 

I'll try that next time.

Another hint: under 9.10 I get occasional garbage on my screen. Usually
a horizontal scattering of pixels, usually confined to fewer than a
half-dozen pixels high, usually most of the way across the screen. A
redraw always cleans it up. I will also sometimes see a very fast flash
of dark on a mouse move into or out of a window.

I am thinking the Intel video driver is tromping on memory--sometimes
video memory, sometimes other memory, sometimes crashing the machine. I
tried reverting to an old driver from 9.04, but I don't think I changed
everything I would have needed to, I still got video glitches.

Ideas?

-kb, the Kent who is hoping 10.04 will be solid again.





More information about the ubuntu-users mailing list