Ubuntu GNOME desktop disappearing on keyboard input

[mjf]

Hello,

I'm running Ubuntu GNOME 16.10 in VirtualBox 5.1.26 on a Windows 7 64-bit host.

If I don't use the guest for a while, any keyboard input will cause the desktop to disappear and tty1 text console to show up. I then have to enter Ctrl-Alt-F2 and Ctrl-Alt-F1 to make the desktop reappear.

How can I avoid this behavior?

Thanks, mjf

[socratis]

Stop any screen savers (disable them) and make sure that the power settings never allow the VM to go to power savings mode. See if that helps...

[mjf]

Thanks for your advice.

I disabled all screen savers, but the problem still occurs. When I have not used the keyboard for a while, the first keystroke will take me from the desktop to a text console. Whether I have been using the mouse before does not matter.

Here are the entries to /var/log/syslog

Code: Select all

Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (**) Option "fd" "43"
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (**) Option "fd" "41"
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (**) Option "fd" "44"
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (**) Option "fd" "42"
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (**) Option "fd" "45"
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (**) Option "fd" "50"
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (**) Option "fd" "49"
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) systemd-logind: got pause for 13:65
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) systemd-logind: got pause for 13:70
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) systemd-logind: got pause for 13:64
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) systemd-logind: got pause for 13:67
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) systemd-logind: got pause for 13:69
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) systemd-logind: got pause for 13:68
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) systemd-logind: got pause for 226:0
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) systemd-logind: got pause for 13:66
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) systemd-logind: got resume for 13:65
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) systemd-logind: got resume for 13:70
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) systemd-logind: got resume for 13:64
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) systemd-logind: got resume for 13:67
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) systemd-logind: got resume for 13:69
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) systemd-logind: got resume for 13:68
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) systemd-logind: got resume for 226:0
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) modeset(0): EDID vendor "VBX", prod id 0
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) modeset(0): DDCModeFromDetailedTiming: 1920x1136 Warning: We only handle separate sync.
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) modeset(0): Using hsync ranges from config file
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) modeset(0): Using vrefresh ranges from config file
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) input device 'Power Button', /dev/input/event0 is tagged by udev as: Keyboard
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) input device 'Power Button', /dev/input/event0 is a keyboard
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) input device 'Sleep Button', /dev/input/event1 is tagged by udev as: Keyboard
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) input device 'Sleep Button', /dev/input/event1 is a keyboard
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) input device 'Video Bus', /dev/input/event3 is tagged by udev as: Keyboard
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) input device 'Video Bus', /dev/input/event3 is a keyboard
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) input device 'VirtualBox mouse integration', /dev/input/event6 is tagged by udev as: Mouse
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) input device 'VirtualBox mouse integration', /dev/input/event6 is a pointer caps
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) input device 'VirtualBox USB Tablet', /dev/input/event5 is tagged by udev as: Mouse
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) input device 'VirtualBox USB Tablet', /dev/input/event5 is a pointer caps
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) input device 'ImExPS/2 Generic Explorer Mouse', /dev/input/event4 is tagged by udev as: Mouse
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) input device 'ImExPS/2 Generic Explorer Mouse', /dev/input/event4 is a pointer caps
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) modeset(0): EDID vendor "VBX", prod id 0
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) modeset(0): DDCModeFromDetailedTiming: 1920x1136 Warning: We only handle separate sync.
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) modeset(0): Using hsync ranges from config file
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) modeset(0): Using vrefresh ranges from config file
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) systemd-logind: got resume for 13:66
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) input device 'AT Translated Set 2 keyboard', /dev/input/event2 is tagged by udev as: Keyboard
Oct  9 22:03:03 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) input device 'AT Translated Set 2 keyboard', /dev/input/event2 is a keyboard
Oct  9 22:03:04 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) modeset(0): EDID vendor "VBX", prod id 0
Oct  9 22:03:04 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) modeset(0): DDCModeFromDetailedTiming: 1920x1136 Warning: We only handle separate sync.
Oct  9 22:03:04 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) modeset(0): Using hsync ranges from config file
Oct  9 22:03:04 Yakkety64 /usr/lib/gdm3/gdm-x-session[1543]: (II) modeset(0): Using vrefresh ranges from config file
Oct  9 22:03:08 Yakkety64 gnome-terminal-[3963]: Allocating size to GtkBox 0x5599f9a357b0 without calling gtk_widget_get_preferred_width/height(). How does the code know the size to allocate?

[socratis]

I really have no clue, but I have the feeling that this thread belongs to the "Linux Guests" as opposed to "Windows Hosts". Maybe someone in there will have a better understanding of the messages...