[PATCH xinit 2/2] startx: Make startx auto display select work with per user /tmp dirs

[Jon TURNEY]

On 20/03/2015 17:16, Ray Strode wrote:
> On Fri, Mar 20, 2015 at 10:02 AM, Hans de Goede <hdegoede at redhat.com> wrote:
>> If a separate /tmp per user is used the existing auto display select code
>> does not work, add an extra check for the unix socket for the display number
>> existing in /proc/net/unix (linux only).
>
> This patch and the previous patch make sense to me near term.  It
> fixes some corner
> cases without regressing any others.  I do think a better medium-term
> solution would
> be for xinit to start using -displayfd and startx to drop its "try to
> figure out a display
> number" heuristics.  There's just no reason programs that start an X
> server should be
> trawling around in /tmp and/or binding to sockets up front (except for
> hysterical raisins)

I wrote a patch [1] a while ago to teach xinit to handle the -displayfd 
option.

If I understand you correctly, you are suggesting something slightly 
different, that -displayfd should be used by default if a display number 
isn't explicitly specified, but this might serve as a starting point...

[1] 
http://cgit.freedesktop.org/~jturney/xinit/commit/?id=c6dc4db8fdcbe115867f6f4a1ab9138536f99fec