Comment 9 for bug 1958412

In my case the problem is severe. I can see login screen, but when I log in I see a white noise screen. It renders my computer unusable. That is unless I use older kernel.

There is how to do it: When your computer boots press escape (UEFI boot) or shift (BIOS boot). You may have to try several times to press it in right time. A menu should appear. Choose option 'Advanced options for Ubuntu'. Then choose 'Ubuntu, with Linux 5.11.0-46-generic'.