I just installed a fresh install of Ubuntu artful (17.10) yesterday, on a Dell XPS 13 9630, and am affected by the same issue.
My laptop has a HiDPI built-in display with a resolution of 3200x1800, and I also connect an external ASUS monitor at work, which has a resolution of 1920x1080. The laptop has an integrated Intel graphics card, and the external display is connected via a USB Type-C hub that has an HDMI output. The display arrangement was set correctly when I plugged in the external monitor, except for the positioning of the external display, which I adjusted. * Built-in display: ** Resolution: 3200x1800 ** Scale: 200% * External display: ** Resolution: 1920x1080 ** Scale: Not shown, but set to 100% Moving native apps like terminal, settings windows, file explorer across monitors correctly scales them based on the scale setting of each monitor. However: * Chrome, Firefox, PHPstorm (IntelliJ) are always scaled to 200% on both monitors * Moving these windows between monitors does not adjust their scaling * Maximising a window on the external display does not adjust its scaling Not sure what commands / log files might be helpful here but I'd be happy to run any kind of diagnostic necessary. Thanks for opening this bug. Lindsay -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1735986 Title: Ubuntu 17.10 on Wayland doesn't scale some applications properly on external low DPI display To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1735986/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
