Hmm, it shouldn't be a multi-stream problem. It looks like you only need HDMI v1.3 to drive that resolution and your laptop supports HDMI 1.4b already.
So mainly I suspect a bad HDMI cable, bad HDMI adaptor, or just faulty EDID data coming from the monitor. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1849484 Title: [X1 Carbon 7, i915, HDMI] Ultra-wide monitor recognized properly when plugged in only intermittently [Xorg only] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1849484/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
