Same here, I have a Lenovo X13, also with an AMD 4750U. Screen shows
random noise after suspend/resume with 5.13 kernel. Reverting back to
5.11 kernels removes the problem. I also installed a 5.15 kernel and
here, things are also working again.
Might be related to this:
https://gitlab.freedesktop.
Bug persists in latest update (5.13.0-23-generic)
** Changed in: linux-signed-hwe-5.13 (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1950339
Title:
Screen s
apport information
** Tags added: apport-collected
** Description changed:
Upon upgrading to the latest HWE edge kernel (from 5.11 to 5.13) on
20.04, I found that my screen won't work if my laptop goes idle (screen
off) or wakes up from suspend. Reverting to 5.11 resolves this for me.
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1950339
Title:
Screen stays black after going idle or waking up from suspend
Problem persists with linux-image-generic-hwe-20.04-edge
5.13.0.22.22~20.04.9 from focal-proposed.
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https://bugs.launchpad.net/bugs/1950339
Title:
Screen stays black after going idle or
Possibly related:
https://bugzilla.kernel.org/show_bug.cgi?id=213779
https://bbs.archlinux.org/viewtopic.php?id=267874
** Bug watch added: Linux Kernel Bug Tracker #213779
https://bugzilla.kernel.org/show_bug.cgi?id=213779
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