Thank you for your bug report, the previous comment seems to suggest it's a kernel issue?
** Package changed: xorg (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1852035 Title: Cannot use full resolution (2560x1440) of Dell U2715H To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1852035/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
