Regarding HDMI version the spec which I gave a link to claims; True Resolution : 3840x2160 at 60Hz (DisplayPort) ,3840x2160 at 30Hz (HDMI)
Some while ago I was researching this issue and found a specification page on the ASUS website which showed two formats for declaring the frame rate, one extended only to the 1920 value while the other went to the full 4K. From this I deduced that perhaps windows uses one report format while linux uses the other. I cannot locate that page now, it may have been taken down. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1890418 Title: i915 does not expose vendor-specific extended HDMI timings/modes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1890418/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
