Ubuntu
linux package

  1. Bug #1308264
  2. Comment #20

Comment 20 for bug 1308264

Revision history for this message
Tim Edwards (tkedwards) wrote : Re: Ubuntu 14.04 Beta 2 stuck at "Switched to clocksource tsc" when booting up, then resumes booting to the login screen, after 1 minute

@Jackson
There's no need to downgrade the kernel anymore. The workaround, which I use on my C720 and it works is:
1. Open the file /etc/default/grub as root in a text editor with: gksu gedit /etc/default/grub
2. change the line: GRUB_CMDLINE_LINUX_DEFAULT="tpm_tis.force=1" and save changes
3. sudo update-grub