I have the same problem. There is no response to any key presses (no fan, as others reported) and I have to hard restart with the power button.
Dell Precision 7520 Ubuntu 20.04.2 LTS Quadro M2200 GPU Nvidia driver 470.57.02 Kernel: 5.4.0-81-generic #91-Ubuntu SMP Thu Jul 15 19:09:17 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux One note: I was able to fix this issue back in March of '21 by adding the following to /etc/default/grub #GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" #changed by me on 3/18/21 GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=UUID=ad19f24f-7458-4bf8-a5ab-108 8541c41c3" This fix stopped working after a kernel/driver update in July '21. Not sure which one. This doesn't work: # changed by me on 8/25/21 #GRUB_CMDLINE_LINUX="" GRUB_CMDLINE_LINUX="nouveau.blacklist=1" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1909005 Title: Ubuntu does not resume (wake up) from suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1909005/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
