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Bug#758299: startx: X server fails to start, strace shows permission error



On Sat, 16 Aug 2014 15:19:27 +0200 Cyril Brulebois wrote:
> Aureliano Vismundo (2014-08-16):
> > I was connecting my monitor with my laptop to do some writing stuff.
> > This is normally fine, well it fails sometimes but then I restart
> > my computer. This time
> > it failed again and I thought, good time to update debian. So I did.
> > libc6-dev, linux-headers, and linux-image were updated. After that
> > I restarted and when it came to call "startx" the X server did exit
> > gracefully with no error. And here I am with no GUI.
> >
> > I first checked /var/log/Xorg.0.log but nothing special, no errors
> > and no important warnings in my eyes. Then I used strace -ff which
> > gave me interesting information about the X server, e.g.:
> > * setresuid(-1, 0, -1) = -1 EPERM (Operation not permitted)
> > * rename("/var/log/Xorg.0.log", "/var/log/Xorg.0.log.old") = -1 EACCES
> > (Permission denied)
> > * "Fatal Server error" and "Cannot move old log file /var/log/Xorg.
> > 0.log to /var/log/Xorg.0.log.old"
>
> Running something under strace disables the setuid bit.
>
> It would be nice to see stdout/stderr/X log when starting your session
> as a regular user. If X exits gracefully, that might just be your
> window/session manager returning, leading to X's graceful exit.
>
> Mraw,
> KiBi.
 
Hi Kibi,
 
ahh, I understand, thanks for your quick response. There was no stdout, but stderr:
http://paste.debian.net/115897/
 
I'm using i3 as window manager.
 
Greets
aureliano
 

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