https://bugzilla.kernel.org/show_bug.cgi?id=66281
sven sven.pilz+linux@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |sven.pilz+linux@gmail.com
--- Comment #8 from sven sven.pilz+linux@gmail.com --- I guess I have the same problem on a T420, see "https://bugs.freedesktop.org/show_bug.cgi?id=80769".
Can you boot your system with setting the display to discrete (instead of Optimus) in the BIOS? https://bugzilla.kernel.org/show_bug.cgi?id=80321