xset not working on session start

Glynn Clements glynn at gclements.plus.com
Sun Feb 11 09:27:48 PST 2007

Atom Smasher wrote:

> (
>      sleep 10
>      xset b 100 440 101 && echo 'bell set'
>      xset m 4/1 8  && echo 'mouse set'
>      xset dpms 0 0 0 && echo 'dpms set'
> ) &
> putting that in ~/.xsession works, after a 10 second delay, of course.
> now it gets weirder... from time to time the bell, dpms and mouse settings 
> are reset to their default values. i've noticed that xine will reset the 
> bell (?!?!?) when it starts, but i haven't yet figured out what is 
> resetting everything else.
> any hints for figuring out this one? is there a way to log changes to 
> these settings?

The simplest method which springs immediately to mind is to create a
shared library containing dummy versions of relevant functions (e.g. 
DPMSQueryExtension, XF86MiscSetKbdSettings etc) then point LD_PRELOAD
at the library. E.g.:

	$ cat hack.c

	#define _GNU_SOURCE
	#include <errno.h>
	#include <stdio.h>
	#include <X11/Xlib.h>
	Bool DPMSQueryExtension(Display *display, int *event_base, int *error_base)
		fprintf(stderr, "*** DPMSQueryExtension called by %s\n", program_invocation_name);
		return False;

	$ gcc -c -fPIC hack.c
	$ gcc -shared -o libhack.so hack.o
	$ export LD_PRELOAD=`pwd`/libhack.so
	$ xset q >/dev/null
	*** DPMSQueryExtension called by xset

Glynn Clements <glynn at gclements.plus.com>

More information about the xorg mailing list