Latest kernel update affects resume from suspend

Both my desktop PCs have the latest updates installed (KDE desktop). Since a recent update, resume from suspend fails on both machines and leaves me with a blank screen and no way of recovering except to press the reset button.

After trying unsuccessfully to find a cause, I decided to revert to the previous kernel (ie. from 4.4.120-45 to 4.4.114-42). To my surprise that seems to have worked.

I have no idea how to fix the problem other than selecting the old kernel when booting. Any ideas gratefully received.

Should be reported to bugzilla

My educated guess would be the nvidia card.

I have a radeon card :slight_smile:

I reported this as bug 1087047. It’s possible that an update to drm-kmp-default for kernel 4.4.120 may be to blame.
I was asked to test a new version of drm, which so far seems ok. I believe an update will be available soon.

Your description of what you have reads differently.

PC1 Gigabyte GA-970A-D3+8Gb / Leap 42.3
PC2 Asus M4A785TD+8Gb / Athlon II X4 630 / GeForce 6200/Leap 42.3