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I am running Ubuntu 18.04 LTS. Kernel 5.5 should address/fix a problem with certain hardware on my system. I would like to test for this and load the 5.5-rc1 kernel for a short period of time.

Using the Ubuntu Kernel Update Utility, I am able to boot my system with Kernel 5.5-rc1 running. Most everything seems to work fine, however I lose multi-monitor support. My system only seems to detect one monitor connected while running 5.5-rc1. What can I do so multiple connected monitors are detected on my system?

When I revert back to kernel 5.0x, multimonitor works as expected. If it matters, I am using an nvidia card with nvidia drivers installed.

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  • It's a RC (release candidate) kernel, so testing for problems with is it's current purpose. Your issue with the RC kernel should be reported. – guiverc Dec 11 '19 at 1:54
  • I also believe making changes to work around a RC could be a waste of time, if bugs are reported for that kernel, they'll get fixed and a RC2 will get released - your 'fixes' could cause problems with that next version, or were just a waste of time. – guiverc Dec 11 '19 at 1:55
  • While searching a bit more, it appears I may have to update/install nvidia kernel modules when I'm running a newly installed kernel. If anyone has any best practice guide for accomplishing this, please let me know. – Angelo M Dec 11 '19 at 2:23

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