Public bug reported:
I know this is, strangely, by design (http://xubuntu.org/news/screen-
locking-in-xubuntu-14-04/), but compared to gnome-screensaver or
xscreensaver, it's a regression as far as I'm concerned. I couldn't find
any placeholder bug for this. If there is one already, then please mark
this as duplicate, and sorry for the noise.
A summary of what's wrong with switching VTs:
1. Locking takes ~4 seconds in Xubuntu 14.04 on my Thinkpad W510 with
nvidia binaries installed. Unlocking takes another ~4 seconds. That's a
total of 8 seconds for a lock/unlock cycle, not including password
entry. That's simply terrible terrible usability. Locking and unlocking
were basically instant in both gnome-screensaver and xscreensaver.
2. Locking and unlocking both result in some serious screen flashing,
plus in my case, the brief display of the nvidia logo. This gives the
very strong impression that X has just crashed and restarted. That was
my conclusion the first few times it happened. All this VT switching
can't be great for the hardware either, especially the backlight.
3. Audio playback stops on VT switch. A lot of us leave our laptops
playing music on external speakers while we're in the next room doing
something else for who knows how long. Having it stop just because the
screensaver has been triggered is another usability fail.
I suppose VT switching is being used for some kind of security guarantee
(is there a reference for that somewhere?). However, IMO, using VT
switching for locking and unlocking is a major fundamental design flaw,
resulting in serious usability issues. As a result, light-locker is far
from ready for prime time. Rolling it out for an LTS was a big mistake.
** Affects: light-locker (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1336647
Title:
light-locker switches virtual terminals on lock and unlock
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