On Tue 21 Jul 2015 14:32:08 Frederic Muller wrote: > Hi! > > I just upgraded to F22 and my external monitor (a Koios 24" 1920x1200) > no longer works in its native resolution. I can only get 1280 x 768 to > display. > > Everything was working well before. My video chip is the Intel HD > Graphics 5500 (Broadwell GT2) (the laptop is a X1 Carbon 3rd generation). > > GNOME display settings does offer the native resolution but it just > doesn't work (I get an screen switched off). > > How would you troubleshooting this? Look in dmesg for errors. If you see problems with EDID it can be a cable fault, try another cable. Use xrandr --verbose to see what Xorg makes of the screen. You should have EDID and the 1920x1080 mode should be listed. Barry -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org