[bug#48220] [PATCH] gnu: xfce4-session: Add xset to propagated-inputs.

[Brendan Tildesley]

> On 05/05/2021 3:23 PM Ludovic Courtès <ludo@gnu.org> wrote:
> 
>  
> Hi Brendan,
> 
> Brendan Tildesley <mail@brendan.scot> skribis:
> 
> > * gnu/packages/xfce.scm (xfce4-session):[propagated-inputs]: Add xset so
> > that xflock4 can turn off the monitor.
> 
> Can’t we instead patch ‘scripts/xflock4’ so that it refers to ‘xset’ by
> its absolute file name?
> 

I can. It felt weird just patching one command and not others though.

> However, my understanding is that the xset code is already a fallback:

> 
> --8<---------------cut here---------------start------------->8---
> # else run another access locking utility, if installed
> for lock_cmd in \
>   "xlock -mode blank" \
>   "slock"
>   do
>     set -- $lock_cmd
>     if command -v -- $1 >/dev/null 2>&1; then
>         $lock_cmd >/dev/null 2>&1 &
>       # turn off display backlight:
>       xset dpms force off
>         exit
>     fi
> done
> --8<---------------cut here---------------end--------------->8---
> 
> Probably we should ensure the first ‘for’ loop works as expected.
> Perhaps we need to replace ‘xfce4-screensaver-command’ by its absolute
> file name there.
> 

Currently xfce4-screensaver is not installed in the xfce package at all by 
default,
so it isn't used. I could add it, but for me it was glitchy/flickering and I 
would keep 
clearing the password as I was entering it so I couldn't log back in. It even 
does it
in a VM. I do have a recent amd graphics card with proprietary linux though, my 
computer
can't boot otherwise :(.

If you run guix environment --ad-hoc xfce4-screensaver
then
 xfce4-screensaver &; xfce4-screensaver-command --lock
does it work for you?

I'm not sure what is best, should we be maximal and include xfce4-screensaver 
in the xfce
package, or be minimal and make people have to install it manually?
> WDYT?
> 
> Thanks,
> Ludo’.

0001-gnu-xfce4-session-Add-xset-to-propagated-inputs.patch
Description: Text Data

0001-gnu-xfce4-session-Allow-xflock4-to-use-xset.patch
Description: Text Data