Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xscreensaver (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1255815
Title:
screenlock does not dpms off when screensaver is disabled
Status in xscreensaver package in Ubuntu:
Confirmed
Bug description:
Desktop Environments like OpenBox and LXDE (in Lubuntu and Debian
LXDE) rely on xscreensaver-command -lock to lock the screen. When
locking the screen, the screen should turn off (e.g. backlight off).
But this only works if you have "Blank Screen Only" with a timeout
selected in xscreensaver-demo. If you disable the screensaver, lock
will turn the screen black but won't turn it off (backlight off)
anymore.
This is undesirable. In certain usecases don't want to have a
screensaver or blank screen after a timeout, e.g. for a media player.
But we DO want to turn the screen off (completely off) when we lock
the screen.
(Otherwise the HDMI channel remains 'open' and a multisource display
device will keep selecting the black screen when another
source/player/platform/console reboots and detaches it's HDMI signal
for a few seconds.)
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