On Mon, Jun 7, 2010 at 1:31 PM, Patrick O'Callaghan <pocallag...@gmail.com>wrote:
> On Mon, 2010-06-07 at 12:15 -0400, Gregory Woodbury wrote: > > > > > > On Fri, Jun 4, 2010 at 10:33 PM, Patrick O'Callaghan > > <pocallag...@gmail.com> wrote: > > > > On Sun, 2010-05-30 at 22:05 -0400, Sam Varshavchik wrote: > > > Patrick O'Callaghan writes: > > > > > > > The only recourse seems to be a hard reset as there's no > > reaction to the > > > > keyboard or mouse. I haven't yet tried ssh from another > > machine to poke > > > > around. If anyone tells me what to look for I'll be happy > > to do it next > > > > time. > > > > > > Try the ssh. This sounds like a kernel crash. > > > > > > It happened again so I tried the ssh. I was able to log in and > > everything seemed to be still running, including my usual GUI > > apps (I > > use KDE). Killing kdm, killing X and doing 'init 3' all had no > > effect. > > It's as if the monitor is physically disconnected (or the > > video driver > > is dead). I had to reboot. I'm going to report it to BZ. > > > > I'm having similar problems, what is the Bugzilla number? > > I've been waiting for it to happen again so I can back up my report with > actual data, including /var/log/messages, /var/log/Xorg.*, dmesg output, > lsmod output etc. However the bug doesn't want to collaborate and is now > in hiding. I've turned off power-saving and the screen-saver, and it > hasn't happened again, which may be a clue in itself, but if you can > provide the above data, create the BZ entry and report it here so others > can add comments. > > poc > It's not a kernel crash, It's an X server crash/hang. It depends on an interaction between gnoe-screensaver modules, the gnome-power manager and the X server. The workaround is to select a screensaver module that doesn't crash/hang and leave it alone. I have not exhaustively tested all the screensaver modules but have found two that definitely elicit the bad behaviours on my x86_64 box. (I've not had the problem on i686 boxes.) "Ant Inspect" will crash the X server, showing a gdm-greeter when waking up the monitor. "Apple II" will hang the X server, requiring a ssh into the box and a manual kill -9 of the X server to recover without a reboot. I have filed a bugzilla report (BZ #606136) and invite y'all to add comments thereunto. -- G.Wolfe Woodbury
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