Comment # 7
on bug 1202828
from Marcus R���ckert
```
(gdb) bt
#0 XDisplayString (dpy=0x0) at /usr/src/debug/libX11-1.8.2/src/Macros.c:119
#1 0x00007fb6ddaf7b85 in vdpau_common_Initialize (driver_data=0x7fb6dd772800)
at /usr/src/debug/libva-vdpau-driver-0.7.4-7.10.x86_64/src/vdpau_driver.c:188
#2 vdpau_Initialize_Current (ctx=0x7fb6ec3225c0) at
/usr/src/debug/libva-vdpau-driver-0.7.4-7.10.x86_64/src/vdpau_driver_template.h:561
#3 __vaDriverInit_1_15 (ctx=0x7fb6ec3225c0) at
/usr/src/debug/libva-vdpau-driver-0.7.4-7.10.x86_64/src/vdpau_driver.c:317
#4 0x00007fb6ddab3051 in va_openDriver (dpy=dpy@entry=0x7fb6ec3651a0,
driver_name=<optimized out>) at /usr/src/debug/libva-2.16.0/va/va.c:525
#5 0x00007fb6ddab808e in vaInitialize (dpy=0x7fb6ec3651a0,
major_version=0x7fffbb76ad2c, minor_version=0x7fffbb76ad30) at
/usr/src/debug/libva-2.16.0/va/va.c:743
#6 0x00007fb6e5251f27 in vaInitialize () at
/usr/src/debug/firefox-107.0/media/mozva/mozva.c:411
#7 vaInitialize () at /usr/src/debug/firefox-107.0/media/mozva/mozva.c:408
#8 childvaapitest () at
/usr/src/debug/firefox-107.0/toolkit/xre/glxtest.cpp:1038
#9 vaapitest () at /usr/src/debug/firefox-107.0/toolkit/xre/glxtest.cpp:1102
#10 childgltest () at /usr/src/debug/firefox-107.0/toolkit/xre/glxtest.cpp:1195
#11 0x00007fb6e52944af in fire_glxtest_process () at
/usr/src/debug/firefox-107.0/toolkit/xre/glxtest.cpp:1236
#12 XREMain::XRE_mainInit () at
/usr/src/debug/firefox-107.0/toolkit/xre/nsAppRunner.cpp:4012
#13 XREMain::XRE_mainInit () at
/usr/src/debug/firefox-107.0/toolkit/xre/nsAppRunner.cpp:3898
#14 XREMain::XRE_main () at
/usr/src/debug/firefox-107.0/toolkit/xre/nsAppRunner.cpp:5890
#15 XRE_main () at
/usr/src/debug/firefox-107.0/toolkit/xre/nsAppRunner.cpp:5972
#16 0x000056034ce682fd in do_main () at
/usr/src/debug/firefox-107.0/browser/app/nsBrowserApp.cpp:226
#17 0x000056034ce60a2c in main () at
/usr/src/debug/firefox-107.0/browser/app/nsBrowserApp.cpp:428
```