On 2024/10/29 22:30, Stuart Henderson wrote: > I'm also seeing hangs if the machines are left - so far seen after > periods of between a few days and a few weeks. Fan spinning - Numlock > unresponsive and blindly typing "bo r" doesn't do anything so seems not > to be in DDB. I haven't been able to persuade ddb.console=1 to work > in X (either with default ctrl+alt+esc or with machdep.kbdreset=2 and > ctrl+alt+del, including with machdep.forceukbd=1). > > Think I'll run some with MP_LOCKDEBUG kernels to see if I can get > anything from that, though dmesg is cleared at boot so if they > don't switch consoles there won't be much to see. And run some > with DPMS disabled to see if the hangs go away there. (anecdotally the > machines which are used less do seem to hang more frequently so this > seems plausible). > > Any other ideas very welcome..
So after ~6 weeks of running those machines with DPMS disabled (by setting sleep-display-ac=0 in org/mate/power-manager via dconf local.d), they have stopped hanging. Not sure where to go from here though, it would be nice to get DPMS working again on them..
