Experiencing the same problem after upgrade to Impish. I have determined that the desktop does actually start after a resume from suspend, but the screen remains blank, with the backlight on. (To determine this, I used a keyboard shortcut to launch a terminal window and typed a reboot command successfully.)
Everything in the kernel log seemed normal for the interval around the suspend/restore (although there's so much stuff there, it's hard to be sure.) The screen does come on OK after a full reboot. As with the OP, suspend/restore is OK if I back off to using the 5.11 kernel. Also as for the OP, my system is using the amdgpu driver. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-meta in Ubuntu. https://bugs.launchpad.net/bugs/1945289 Title: Failed to properly resume from S3 (suspend-to-ram) on kernel version 5.13.0-16 (installed while updating to impish), amdgpu driver. Status in linux-meta package in Ubuntu: New Bug description: On 5.11.0 everything is OK. The GPU is AMD Carrizo APU. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-meta/+bug/1945289/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
