screen locker

screen locker

[Marcus Moeller]

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Hi all.

I wanted to install a screen locker on GuixSD and all I found was slock.

Sadly when I try to start it as unprivileged user, I got an error like:

cannot disable the out-of-memory-killer for this process

Greets
Marcus


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Re: screen locker

[Daniel Pimentel]

On 2015-08-20 04:51, Marcus Moeller wrote:
> Hi all.
> 
> I wanted to install a screen locker on GuixSD and all I found was 
> slock.
> 
> Sadly when I try to start it as unprivileged user, I got an error like:
> 
> cannot disable the out-of-memory-killer for this process
> 
> Greets
> Marcus
You can install xlockmore and configure your password to screen locker.

Enlightenment have you own screen locker.

Gnome3 too but not available on GuixSD. In soon 3:)

So when I use Windowmaker or Xfce I was use xlockmore package.
-- 
Daniel Pimentel (d4n1 3:)

Re: screen locker

[宋文武]

Marcus Moeller <marcus.moeller@gmx.ch> writes:

> Hi all.
>
> I wanted to install a screen locker on GuixSD and all I found was slock.
>
> Sadly when I try to start it as unprivileged user, I got an error like:
>
> cannot disable the out-of-memory-killer for this process
Same here, I think only root can run it.
(the unprivileged user can't set /proc/self/oom_score_adj).

Re: screen locker

[Leo Famulari]

On Fri, Aug 21, 2015, at 11:47, 宋文武 wrote:
> Same here, I think only root can run it.
> (the unprivileged user can't set /proc/self/oom_score_adj).

Slock on Debian (package suckless-tools) doesn't have this issue. I am
looking into how they deal with it.

Re: screen locker

[Leo Famulari]

It seems that slock wants to have the setuid bit set.

I see in the docs [1] that the store cannot contain setuid programs. Is
the workaround in the docs only applicable to GuixSD, or can it be used
with the standalone package manager?

[1]
http://www.gnu.org/software/guix/manual/html_node/Setuid-Programs.html

On Fri, Aug 21, 2015, at 13:46, Leo Famulari wrote:
> On Fri, Aug 21, 2015, at 11:47, 宋文武 wrote:
> > Same here, I think only root can run it.
> > (the unprivileged user can't set /proc/self/oom_score_adj).
> 
> Slock on Debian (package suckless-tools) doesn't have this issue. I am
> looking into how they deal with it.
> 

Re: screen locker

[Ludovic Courtès]

Leo Famulari <leo@famulari.name> skribis:

> It seems that slock wants to have the setuid bit set.
>
> I see in the docs [1] that the store cannot contain setuid programs. Is
> the workaround in the docs only applicable to GuixSD, or can it be used
> with the standalone package manager?

It’s only applicable to GuixSD: The ‘setuid-programs’ field mentioned
there is for an ‘operating-system’ declaration.

Ludo’.

Re: screen locker

[Ludovic Courtès]

Marcus Moeller <marcus.moeller@gmx.ch> skribis:

> I wanted to install a screen locker on GuixSD and all I found was slock.

FWIW I use xlockmore and I have this:

  (operating-system
    ;; ...
    (setuid-programs (cons #~(string-append #$xlockmore "/bin/xlock")
                           %setuid-programs)))

From what others wrote, slock may need to be listed there as well.

HTH,
Ludo’.