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After upgrading to Ubuntu Gnome 16.04 LTS, the screen power saver started to
malfunction.
When the desktop is idle, it turn off the screen as usual, but a second later
it turns the screen back on.
This happens repeatedly.
I have disconnected any input device as well.
I'm using Ubuntu gnome 16.04 with kernel version: 4.4.0-21-generic
x86_64
This is the syslog entries from the moment the power-saver mode was
started:
Apr 27 16:09:31 Funaro-Home /usr/lib/gdm3/gdm-x-session[1152]: (II) intel(0):
resizing framebuffer to 1680x1050
Apr 27 16:09:31 Funaro-Home /usr/lib/gdm3/gdm-x-session[1152]: (II) intel(0):
switch to mode 1680x1050@60.0 on VGA1 using pipe 0, position (0, 0), rotation
normal, reflection none
Apr 27 16:09:31 Funaro-Home /usr/lib/gdm3/gdm-x-session[1152]: (II) intel(0):
resizing framebuffer to 3600x1080
Apr 27 16:09:31 Funaro-Home /usr/lib/gdm3/gdm-x-session[1152]: (II) intel(0):
switch to mode 1920x1080@60.0 on HDMI2 using pipe 0, position (0, 0), rotation
normal, reflection none
Apr 27 16:09:31 Funaro-Home /usr/lib/gdm3/gdm-x-session[1152]: (II) intel(0):
switch to mode 1680x1050@60.0 on VGA1 using pipe 1, position (1920, 30),
rotation normal, reflection none
Apr 27 16:09:32 Funaro-Home gnome-session[1165]: (gnome-shell:1390):
GLib-GObject-WARNING **:
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./gobject/gsignal.c:2635: instance
'0x2e02040' has no handler with id '71399'
Apr 27 16:09:32 Funaro-Home gnome-session[1165]: (gnome-shell:1390):
GLib-GObject-WARNING **:
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./gobject/gsignal.c:2635: instance
'0x2e02040' has no handler with id '71399'
Apr 27 16:09:36 Funaro-Home gnome-session[1165]: Gjs-Message: JS LOG: Device ->
Apr 27 16:09:36 Funaro-Home dbus[737]: [system] Activating via systemd:
service name='org.freedesktop.hostname1'
unit='dbus-org.freedesktop.hostname1.service'
Apr 27 16:09:36 Funaro-Home systemd[1]: Starting Hostname Service...
Apr 27 16:09:36 Funaro-Home dbus[737]: [system] Successfully activated service
'org.freedesktop.hostname1'
Apr 27 16:09:36 Funaro-Home systemd[1]: Started Hostname Service.
Apr 27 16:09:36 Funaro-Home gnome-session[1165]: Gjs-Message: JS LOG: [FREON]
Render all MenuItems
Edit: kernel version 4.5 fixed the errors with intel drm (see updated
log above), but the problem remains the same.
** Affects: gnome-session (Ubuntu)
Importance: Undecided
Status: New
** Tags: power-saver
--
Screen re activated imidiatlly after idle
https://bugs.launchpad.net/bugs/1574511
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