Bug#756848: xserver-xorg-video-radeon: Random segfaults with glamor enabled on Southern Islands card

[Michel Dänzer]

On 06.08.2014 03:53, Jeff Bradberry wrote:
> On Tue, Aug 5, 2014 at 5:15 AM, Michel Dänzer <michel at daenzer.net> wrote:
>> On 05.08.2014 03:29, Jeff Bradberry wrote:
>>>
>>> Oddly enough, when I install the *-dbg packages I get an error about
>>> eglInitialize() failing and direct rendering no longer works,
>>> preventing any of these crashes (see below).
>>
>> That can't really be directly related to installing the *-dbg packages.
>> Does setting the environment variable EGL_LOG_LEVEL=debug for the Xorg
>> process give a clue in its stderr output?
> 
> 
> Here is the debug output:

[...]

> libEGL debug: Native platform type: drm (autodetected)
> libEGL debug: ignore EGL_DRIVERS_PATH for setuid/setgid binaries
> libEGL debug: EGL search path is /usr/lib/x86_64-linux-gnu/egl
> libEGL debug: added /usr/lib/x86_64-linux-gnu/egl/egl_gallium.so to module array
> libEGL debug: added egl_dri2 to module array
> libEGL debug: dlopen(/usr/lib/x86_64-linux-gnu/egl/egl_gallium.so)
> libEGL info: use DRM for display 0x7f450f58e520
> libEGL debug: EGL user error 0x3001 (EGL_NOT_INITIALIZED) in
> eglInitialize(no usable display)
> 
> libEGL info: use DRM for display 0x7f450f58e520
> libEGL debug: EGL user error 0x3001 (EGL_NOT_INITIALIZED) in
> eglInitialize(no usable display)
> 
> libEGL debug: EGL user error 0x3001 (EGL_NOT_INITIALIZED) in eglInitialize

Does setting the environment variable EGL_DRIVER=egl_dri2 work around
this problem?


-- 
Earthling Michel Dänzer            |                  http://www.amd.com
Libre software enthusiast          |                Mesa and X developer