I'm guessing a common cause of this bug is low quality HDMI cables. If you're stuck at 1080p then that suggests the cable is only HDMI 1.2. To achieve 1440p at 60Hz you will need an HDMI 1.4 cable. And to achieve 2160p (4K) at 60Hz you will need an HDMI 2.0 cable AND a modern GPU to plug it into. 3K and 5K requirements are somewhere in the middle depending on the vertical resolution of the monitor.
https://en.wikipedia.org/wiki/HDMI#Refresh_frequency_limits_for_standard_video If you're shopping for a new monitor then it's best to find one with DisplayPort (or USB-C) which doesn't have quite as severe limitations as HDMI does. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1901470 Title: [i915] HDMI monitor's native resolution (EDID detailed mode) not available, defaults to 1080p instead To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1901470/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs