Thanks. That confirms there is no EDID coming from the screen, so Linux has to guess about the signalling method.
Turns out you're not the first to encounter this bug: https://bugs.freedesktop.org/show_bug.cgi?id=97822 So the good news is the hardware is not faulty but just unusual. One user says: > I have an HP EliteOne 800 G2 23-in Non-Touch All-in-One PC which > also has the Bang & Olufsen logo at the top left of the screen. > I have the exact same problem as described with the graphics. When > I switch from BIOS mode (default) on the computer to UEFI mode the > graphics started to work as expected. However note that changing the BIOS mode probably requires reinstalling Ubuntu after that. Still, it sounds well worth trying. ** Summary changed: - DIsplay is limited to top half of the screen + [HP EliteOne 800 G2 23-in Touch AiO] Display is limited to top half of the screen ** No longer affects: mutter (Ubuntu) ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed ** Changed in: linux (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1906086 Title: [HP EliteOne 800 G2 23-in Touch AiO] Display is limited to top half of the screen To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1906086/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
