On my Thinkpad X1 Carbon 3rd gen, I am experiencing frequent irregular hard freezes (cannot switch to tty, nor does the magic sysrq works). It happens randomly, seemingly without any cause (freezes both under load and on idle, with most of the RAM free, swap works though) and there isn't anything obviously wrong when I check /var/log/syslog. The system just freezes without warning requiring hard reboot and then boots like nothing happened. It seems to be limited just to Xubuntu, as I've been running vanilla Ubuntu since Beta and later Ubuntu Mate until recently.
closed as off-topic by Kulfy, guntbert, user535733, karel, Eric Carvalho May 14 at 21:54
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This describes a problem that can't be reproduced, that seemingly went away on its own or was only relevant to a very specific period of time. It's off-topic as it's unlikely to help future readers." – user535733, karel