[prev in list] [next in list] [prev in thread] [next in thread] 

List:       freedesktop-xorg
Subject:    Re: xvfb-run seems to start command too early
From:       Samuel Thibault <samuel.thibault () ens-lyon ! org>
Date:       2019-11-04 19:39:02
Message-ID: 20191104193902.axgudqdecaqvalmx () function
[Download RAW message or body]

Hello,

Yannick Schinko, le lun. 04 nov. 2019 14:25:43 +0000, a ecrit:
> When using xvfb-run (1.19.2-1+deb9u5) to run gource headless I run into the issue \
> that the underlying server does not seem to be ready in time a good 75+% of cases.

Note that the xvfb-run script is a Debian script (thus Cc-ing
maintainers there just for information), but possibly the issue is
inside the Xserver, see below.

> In those cases gource complains:
> gource: SDL initialization failed - Couldn't find matching GLX visual
> 
> Now this suspicion is amplified because when I run it as "xvfb-run <args...> bash \
> -c "sleep 1; gource <args...>" it works every time. 
> Is there some way to work around this issue other than having a sleep before the \
> gource command (which would make working with some scripts a pain)?

It happens that the Debian xvfb-run script takes good care of using
SIGUSR1 to synchronize with Xvfb (see SIGUSR1 in man Xserver), so I'm
surprised that you're running into issues. Perhaps the X server is
sending SIGUSR1 too early?

Samuel
_______________________________________________
xorg@lists.x.org: X.Org support
Archives: http://lists.freedesktop.org/archives/xorg
Info: https://lists.x.org/mailman/listinfo/xorg
Your subscription address: %(user_address)s


[prev in list] [next in list] [prev in thread] [next in thread]