This could very well be an issue with the amdgpu kernel module or the kernel itself. 20.04 uses kernel 5.4 I fixed my situation (similar) by upgrading to 20.10 (beta) which uses 5.8 packages. Now, my power management and suspend/resume actually work.
My laptop (different than the nitro): Acer Aspire 5 4700U octacore APU with built-in graphics. Good luck. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-amdgpu in Ubuntu. https://bugs.launchpad.net/bugs/1891684 Title: [amdgpu] Screen flickers after resuming from suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891684/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
