I can confirm I have the same issue. I've reverted the kernel back to 5.4.0-65 to temporarily solve the issue.
I have all of the logs and details posted here: https://forums.linuxmint.com/viewtopic.php?f=59&t=343546&p=1977800#p1977800 The most important being: Feb 25 15:46:06 meritwork-linux kernel: [drm:dce112_get_pix_clk_dividers [amdgpu]] *ERROR* dce112_get_pix_clk_dividers: Invalid parameters!! Feb 25 15:46:06 meritwork-linux kernel: [drm:dm_restore_drm_connector_state [amdgpu]] *ERROR* Restoring old state failed with -22 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1916919 Title: after upgrade to 5.4.0-66 monitor remains black after off/on cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1916919/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
