Alexander Puchmayr writes: > On Dienstag, 14. Oktober 2008, Daniel da Veiga wrote: > > > > I had one of this freezes today. > > Simply killed X using CTRL+SYSREQ+K and got back a console with error > > messages. > > > > Have you tried the SYSREQ keys? > > How does this work? I've tried it but I didn't get this working at all. > AFAIK, first step is to compile the CONFIG_MAGIC_SYSRQ into the kernel. > Then, make sure there's a "1" in /proc/sys/kernel/sysrq; well it is. > /usr/src/linux/Documentation/sysrq.txt says press "ALT-SysRq-<command > key>", I've tried it out with SysRq=printScreen and cmd='h' for help, > but nothing happens, even under normal conditions. What did I make > wrong?
Try another key than 'h'. The space key will show a little help, probably that what you expected to see with 'h'. Oh, you need to be on a text console (ctrl-at-f1) to get visible output. http://en.wikipedia.org/wiki/Magic_SysRq_key Wonko

