Ubuntu
linux package

  1. Bug #1638990
  2. Comment #10

Comment 10 for bug 1638990

Revision history for this message
append[x] GmbH (x-launchpad-h) wrote :

Can confirm the problem: started to occur after the update to kernel 4.4.0-45 and nvidia 367.57 and it is the combination of kernel version and nvidia-driver that causes the problem. There are no problems when the nvidia-driver is purged and nouveau is used instead. I am using full disk description.

Last working kernel with nvidia 367.57 is 4.4.0-43.

Kernel 4.4.0-47 does not fix the problem.

Symptoms are either a black screen with blinking underline-prompt in the topleft corner (no fde password prompt, no possibility to switch to console) or a low-res graphical screen for fde password entry, but no way to actually type the password.

Setting GRUB_CMDLINE_LINUX_DEFAULT="nomodeset" works for me (it is important to remove "quiet splash" if "nomodeset" is inserted into an existing line) – with this setting, the fde password can be entered in the console and the system boots normally with nvidia 367.57 and kernels 4.4.0-45 and 4.4.-0-47.