After some research, I think this is not strictly related to suspend/resume and more to how gdm selects the next VT available to spawn your session and how systemd manages VTs initialization (getty on demand). From http://0pointer.de/blog/projects/serial-console.html
""" Traditionally, the init system on Linux machines was configured to spawn a fixed number login prompts at boot.[...] In a systemd world we made this more dynamic: in order to make things more efficient login prompts are now started on demand only. As you switch to the VTs the getty service is instantiated to [email protected], [email protected] and so on. """ I rebooted my machine and before logging in I cycled from VT1 until VT7(gdm), so systemd launched a getty in each VT, then I logged in gdm and gnome-shell was launched in VT8 and this problem went away. So this is what I think is happening: - the system boots - a getty in launched in VT1 and gdm in VT7 - the user logs in - gdm looks for the next available VT, as systemd didn't launch VT2...VT6, gdm uses VT2 and from that point Alt+<arrow> behave like if you were running virtual terminal console instead of an X session. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gdm in Ubuntu. https://bugs.launchpad.net/bugs/1509369 Title: gdm runs in vt7 and gnome-shell in vt2 after resuming Status in gdm package in Ubuntu: New Bug description: I installed ubuntu-gnome 15.04, then upgraded to Wily. I started getting problems when pressing "Alt+<arrow>" it switches to another virtual terminal like if I was pressing Ctrl+Alt+F<n>, after some troubleshooting these are the steps to reproduce: - Logged in a gnome session - Suspend laptop - Resume - Unlock screen - Press Alt+Arrow_Right, there you'll notice that gdm is running un VT7 and your user's gnome-shell is running in another VT, in my case VT2 No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 15.10 Release: 15.10 Codename: wily ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: gdm 3.16.2-0ubuntu2 ProcVersionSignature: Ubuntu 3.19.0-30.34-generic 3.19.8-ckt6 Uname: Linux 3.19.0-30-generic x86_64 ApportVersion: 2.19.1-0ubuntu3 Architecture: amd64 CurrentDesktop: GNOME Date: Fri Oct 23 11:02:05 2015 InstallationDate: Installed on 2015-10-19 (3 days ago) InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64 (20150422) SourcePackage: gdm UpgradeStatus: Upgraded to wily on 2015-10-19 (3 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm/+bug/1509369/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
