Thank you for reporting this bug to Ubuntu. Ubuntu 17.10 (artful) reached end-of-life on July 19, 2018.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in and change the bug status to Confirmed. ** Changed in: gnome-shell (Ubuntu) Status: Triaged => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1725836 Title: No more than 2 displays work simultaneously Status in Mutter: Incomplete Status in gnome-shell package in Ubuntu: Incomplete Status in mutter package in Ubuntu: Incomplete Status in xorg-server package in Ubuntu: Incomplete Bug description: I have three displays that worked fine in 17.04. Now ith 17.10 I can only use two of them. Either 1 & 2, 1& 3 or 2 2 & 3. All three seem to be properly specified in monitors.xml. The display setup scree detects all three. UBUNTU 17.10 AMD PitcairnLSB Version: core-9.20160110ubuntu5-amd64:core-9.20160110ubuntu5-noarch:security-9.20160110ubuntu5-amd64:security-9.20160110ubuntu5-noarch --- ApportVersion: 2.20.7-0ubuntu3 Architecture: amd64 CurrentDesktop: ubuntu:GNOME DisplayManager: gdm3 DistroRelease: Ubuntu 17.10 InstallationDate: Installed on 2017-02-23 (242 days ago) InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2) Package: mutter PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Tags: artful Uname: Linux 4.13.0-16-generic x86_64 UpgradeStatus: Upgraded to artful on 2017-10-20 (3 days ago) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1725836/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
