© 2004
Canonical Ltd.
•
Terms of use
•
Data privacy
•
Contact Launchpad Support
•
Blog
•
Careers
•
System status
•
bbfa235
(Get the code!)
Sounds similar to an issue that people with HP AIO desktop displays reported in the past. That one was a hardware flaw/quirk and to get it working properly the owners had to change between UEFI and legacy BIOS modes. Doing so likely also requires reinstalling Ubuntu.