Package: libxxf86vm1
Version: 1:1.0.2-1
Severity: normal
Some apps that adjust or report the gamma curves stopped working since
upgrading to xorg 7.4, they do nothing except print things like:
X Error of failed request: BadValue (integer parameter out of range for
operation)
Major opcode of failed request: 129 (XFree86-VidModeExtension)
Minor opcode of failed request: 17 (XF86VidModeGetGammaRamp)
Value in failed request: 0x17
Serial number of failed request: 8
Current serial number in output stream: 8
Example app:
---8<--- invgamma.c
#include <X11/Xlib.h>
#include <X11/extensions/Xext.h>
#include <X11/extensions/xf86vmode.h>
#define GAMMA_COMPONENTS 3
#define GAMMA_RESOLUTION 256
/*
* Ben Winslow <r...@bluecherry.net> - 9/28/2001
* gcc -o invgamma invgamma.c -L/usr/X11R6/lib -lX11 -lXext -lXxf86vm
*/
int main(int argc, char *argv[])
{
Display *dpy;
unsigned short ramp_in[GAMMA_COMPONENTS][GAMMA_RESOLUTION];
unsigned short ramp_out[GAMMA_COMPONENTS][GAMMA_RESOLUTION];
int x, y;
dpy = XOpenDisplay(NULL);
if (XF86VidModeGetGammaRamp(dpy, DefaultScreen(dpy), GAMMA_RESOLUTION,
ramp_in[0], ramp_in[1], ramp_in[2]) == False)
return 1;
for (x = 0; x < GAMMA_COMPONENTS; x++) {
for (y = 0; y < GAMMA_RESOLUTION; y++) {
ramp_out[x][y] = ramp_in[x][(GAMMA_RESOLUTION - 1) - y];
}
}
if (XF86VidModeSetGammaRamp(dpy, DefaultScreen(dpy), GAMMA_RESOLUTION,
ramp_out[0], ramp_out[1], ramp_out[2]) == False)
return 1;
return 0;
}
--->8--- invgamma.c
GSR
-- System Information:
Debian Release: squeeze/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.29-1-686 (SMP w/1 CPU core)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=es_ES.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages libxxf86vm1 depends on:
ii libc6 2.9-7 GNU C Library: Shared libraries
ii libx11-6 2:1.2.1-1 X11 client-side library
ii libxext6 2:1.0.4-1 X11 miscellaneous extension librar
libxxf86vm1 recommends no packages.
libxxf86vm1 suggests no packages.
-- no debconf information
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