I recently experimented some crashes on debian sid. The system becomes unresponsive and falls back to the login (lightdm) window after few minutes. Here is the dmesg log if someone has the time to help me figure out what is going on: https://paste.aperture-sc.net/?95de7f038710fd42#q18U+ujcdN+oYVKPkF8uHPCTWUehItZGtzvXYTsgHVU= Petur