I have same problem with Ubuntu 11.10 and 12.04 Beta on my X201 and T420. Problem does not appear with Fedora 15 and higher and also when using Debian with custom kernel. My laptop reaches critical state faster when docked.
I have same problem with Ubuntu 11.10 and 12.04 Beta on my X201 and T420. Problem does not appear with Fedora 15 and higher and also when using Debian with custom kernel. My laptop reaches critical state faster when docked.