[pkg-lxqt-devel] FYI - problems with light-locker

[Tomas Pospisek]

I'm sending this to the LXQt Packaging Team mailing list after I've added 
the below report to #846278:

Subject: light-locker is counterproductive
Followup-For: Bug #846278
Package: light-locker
Version: 1.8.0-3

After upgrading from Debian 'stretch' to 'buster' I am seeing similar
behavior as the other reporters here:

* when I close the lid, the system suspends to RAM.
* when I reopen, I get a black screen
   * clicking around, moving the mouse, pressing shift, space or any key
     doesn't have any effect
* then I switch to CTRL-ALT-F1, a text terminal appears
* I switch back to CTRL-ALT-F7, now the lock screen appears, with the
   text "you will be redirected shortly" (in german, so I'm not sure
   about the exact english wording).
* again clicking around, pressing keys, but the lock screen remains in
   "you will be redirected shortly"
* then I press CTRL-ALT-F8 (yes F8!!) and I see the lightdm graphical
   login screen (I suppose it's lightdm that is responsible for the
   login screen)
* once logged in I can switch to CTRL-ALT-F1 to the text terminal and
   back to CTRL-ALT-F7 (yes F7!!) and my normal desktop appears

* I had very spurious problems with the lock screen (say once in three
   months) under Debian stretch
* however under 'buster' the problem is 100% repeatable
* I have tried with both light-locker 1.8.0-3 and 1.8.0-2

* after uninstalling light-locker, everything "just works" that is,
   after resume I am presented the lightdm login screen

Some findings:

* so, for some reason, the lock screen seems to be appearing on F7 and
   the desktop on F8. Once I am logged in, the desktop seems to be
   magically switching over to F7.
* the lock screen is serving no purpose as far as I can see and it
   actually breaks the users' system. Logging back in is not possible
   without that weird workaround/hack above.

Given the above (I can't see the use for light-locker, given that
lightdm presents a login screen anyway) I suggest to drop
the package from Debian. And/or remove it from the Suggests of
xfce4-session and lxqt-session, because at least here it effectively
breaks xfce4-session and lxqt-session.

It'd be useful to know on how many "buster" systems light-locker
works vs. how many it breaks.

*t

PS: I'll add a Cc: Debian Xfce Maintainers <debian-xfce at lists.debian.org>,
     LXQt Packaging Team <pkg-lxqt-devel at lists.alioth.debian.org> for the
     xfce4-session and lxqt-session packages later.