[CentOS] GNOME + Firefox - Mouse froze - what key combination to revive?

[Gordon McLellan]

Lanny,

Don't forget to enable the featuret... magic sysrq is disabled by default.

quoting from http://aplawrence.com/Words2005/2005_04_13.html:

"To use it, you need to have it enabled in your kernel
(CONFIG_MAGIC_SYSRQ). It usually is; if you have a file called
'/proc/sys/kernel/sysrq' you have this. To ENABLE the magic functions,
you need a "1" in that file. If it has 0, Alt-SysRq just returns you
to the previous console you were using."

-Gordon


On Sat, Dec 13, 2008 at 3:56 PM, Lanny Marcus <lmmailinglists at gmail.com> wrote:
> On Sat, Dec 13, 2008 at 3:50 PM, William L. Maltby
> <CentOS4Bill at triad.rr.com> wrote:
> <snip>
>> Did you try switching to a virtual terminal, e.g. <CTL>-<ALT>-<F1>?
>
> Bill: I tried CTL-ALT-F2 and I tried CTL-ALT-DEL
>>
>> If the box is not totally frozen
>
> It was 100% frozen.
>
>> this should let you work at a command
>> line. Then you might be able to restart the desktop with a telinit 3 and
>> telinit 5 combination, look at log files to see if there are any
>> messages, etc.
>
> That hadn't happened for a long time. The next time it happens, I hope
> I can remember ALT-SysRq-b to try to reboot the box. Lanny
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