bug#57068: Resizing mcron job in vm-image.tmpl interferes with settings

[Ludovic Courtès]

Hello!

Commit 945ad48cd8029fa77a643e00c7fd350e98cacca0 added an mcron job to
‘vm-image.tmpl’ that resets screen size every second.  I’m don’t fully
understand the problem this was addressing, but it has two drawbacks:

  1. Kicking in every second is inefficient.

  2. Resetting the screen size prevents users from changing it.  For
     example, if I run:

       $(guix system vm gnu/system/examples/vm-image.tmpl) -m 1024

    then go to the Xfce menu, Settings -> Display, and change the screen
    size, I have it immediately reset back to the default value.

Should we remove this workaround, possibly finding another one?

Thanks,
Ludo’.