Ubuntu
kwin package

  1. Bug #1849084
  2. Comment #24

Comment 24 for bug 1849084

Revision history for this message
khitschler (klaus-hitschler) wrote :

Back to freeze on resume.

I'm running Ubuntu 18.04.4 LTS on a Lenovo Desktop V530-15ARR with AMD Ryzen 5 2400G with Vega 11 Graphics and a kernel 5.3.0-28-generic.

With a kernel 5.0.0-29 suspend and resume were perfect (from the users point of view). But I had sometimes graphic freezes during normal usage like browsing. So I upgraded the kernel to 5.3.0-28. This kernel shows suspend and resume problems.
I think I've found a workaround for the failing suspend described at https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe/+bug/1851054 . But now resume sometimes traps into a black screen.

It seems that only the first resume after a cold start fails. When resume fail I'm able to login via SSH and to initiate a reboot. Subsequent suspend and resumes do survive. Since I've repeated only a few times the same experiment I'm not 100% sure about this.

Working resume: Please see attachment suspend-resume-ok.txt

Failing resume: Please see attachment suspend-resume-blank-screen,txt