[Debian-eeepc-devel] Bug#471521: Bug#471521: vga-toggle.sh: does not do XAUTHORITY dance

[Trent W. Buck]

On Tue, Mar 18, 2008 at 07:26:24PM +0100, Nico Golde wrote:
>> Also note that gdm uses a pseudorandomly-named temporary file in
>> /tmp rather than ~user/.Xauthority, so the current dance will not
>> work for them.
>
> That's sad but there is currently no sane way to do this.

I know.  For the record, here's the dance I've done for years in
.Xclients (selecting "default X session", IIRC, in gdm) to move
.Xauthority back to the expected place:

  ## Dance so screen subprocesses can talk to GDM-spawned X servers.
  if test -n "$XAUTHORITY"
  then
    xauth extract - $DISPLAY |
    xauth -f ~/.Xauthority merge -
    unset XAUTHORITY
  fi

> Look at #462954 for example to see another example of a problem
> detecting the x session this way.

That's another one of my bugs! ;-)

> Ideally X should provide a sane way to get it but we don't know of
> any yet.

Presumably gdm's approach is to prevent malicious root users doing
just such things as acpid scripts need to do :-)