Thanks for the bug report. Issues like this are usually due to new drivers being more pedantic about cable bandwidth requirements, and any modes requiring more bandwidth than the current connection can provide will be dropped. So the simplest solution is to use a higher quality HDMI cable.
See also: https://discourse.ubuntu.com/t/the-display-bug-we-cant- fix/57434 ** Package changed: xorg (Ubuntu) => nvidia-graphics-drivers-580 (Ubuntu) ** Tags added: nvidia questing ** Changed in: nvidia-graphics-drivers-580 (Ubuntu) Status: New => Opinion -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2130694 Title: After upgrade to 25.10 fails to detect external HDMI monitor maximum resultion To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-580/+bug/2130694/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
