Re: libGL

[Prakash Countcham <Prakash.Countcham@imag.fr>]

Hi,

First, here is the result of glxinfo with the libGL debug flag :

bash-2.05a$ export LIBGL_DEBUG=1
bash-2.05a$ glxinfo
name of display: :0.0
libGL error: drmMap of sarea failed
display: :0  screen: 0
direct rendering: No
server glx vendor string: SGI
server glx version string: 1.2
server glx extensions:
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context
client glx vendor string: SGI
client glx version string: 1.2
client glx extensions:
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context
GLX extensions:
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context
OpenGL vendor string: VA Linux Systems, Inc.
OpenGL renderer string: Mesa GLX Indirect
OpenGL version string: 1.2 Mesa 3.4.2
OpenGL extensions:
    GL_ARB_multitexture, GL_EXT_abgr, GL_EXT_blend_color,
    GL_EXT_blend_minmax, GL_EXT_blend_subtract
glu version: 1.3
glu extensions:
    GLU_EXT_nurbs_tessellator, GLU_EXT_object_space_tess

   visual  x  bf lv rg d st colorbuffer ax dp st accumbuffer  ms  cav
 id dep cl sp sz l  ci b ro  r  g  b  a bf th cl  r  g  b  a ns b eat
----------------------------------------------------------------------
0x23 24 tc  0 24  0 r  y  .  8  8  8  0  0 24  0  0  0  0  0  0 0 None
0x24 24 tc  0 24  0 r  y  .  8  8  8  0  0 24  8  0  0  0  0  0 0 Slow
0x25 24 tc  0 24  0 r  y  .  8  8  8  0  0 24  0 16 16 16  0  0 0 Slow
0x26 24 tc  0 24  0 r  y  .  8  8  8  0  0 24  8 16 16 16  0  0 0 Slow
0x27 24 dc  0 24  0 r  y  .  8  8  8  0  0 24  0  0  0  0  0  0 0 None
0x28 24 dc  0 24  0 r  y  .  8  8  8  0  0 24  8  0  0  0  0  0 0 Slow
0x29 24 dc  0 24  0 r  y  .  8  8  8  0  0 24  0 16 16 16  0  0 0 Slow
0x2a 24 dc  0 24  0 r  y  .  8  8  8  0  0 24  8 16 16 16  0  0 0 Slow


Señor Bazo Agujereado a écrit:
> Is there any other error output in Xfree86*log? You may see something
> like 'drm: initialization failed' or 'DRI: not enabled' or some such.
> If that is the case, then the problem is that DRI/DRM is not being
> enabled for your graphics card. These modules allow hardware
> accelleration in X.

That's strange, most of the lines about dri and drm are OK (begin with
"(II)"). But there is only one failure in XFree86.1.log :

(==) R128(0): Write-combining range (0xe4000000,0x1000000)
(II) R128(0): [drm] drmSetBusid failed (6, PCI:1:0:0)

(EE) R128(0): [dri] DRIScreenInit failed.  Disabling DRI.

(II) R128(0): Memory manager initialized to (0,0) (1280,3276)
(II) R128(0): Reserved area from (0,1024) to (1280,1026)
(II) R128(0): Largest offscreen area available: 1280 x 2250
(==) R128(0): Backing store disabled
(==) R128(0): Silken mouse enabled
(II) R128(0): Using XFree86 Acceleration Architecture (XAA)

> The problem may be that:
>
>   - You are using two monitors, and X isn't able to use DRI with two
> monitors with the current driver, or

I've only got one monitor.

>   - The agp chipset driver for your motherboard isn't being loaded.
> For example. my mb agp bridge is ' [AMD] AMD-751 [Irongate] AGP
> Bridge', and I need to load the 'amd_k7_agp' module

The chipset driver wasn't loaded (I thought that CONFIG_KMOD=1 
automatically loads needed modules in the kernel).

So I loaded the module via-agp (I've got a VIA apollo KT266 series 
mainboard, so I guess it's the right module) with insmod (modprobe 
surprisingly doesn't work with the kernel 2.6.8), restarted the X server. 
But the error persists.

I also tried amd-k7-agp and ati-agp modules.

>   - DRI is turned off in XFree86Config (check for 'load dri', 'load
> glx' in section 'Module')

dri and glx are loaded in the XFree Configuration file

> You might want to check out the DRI wiki for more help:
> http://dri.sourceforge.net/cgi-bin/moin.cgi/
>
> Have you recently changed anything with your configuration, or added a
> new graphics card?

It's an old error, but when it appeared I didn't have time to handle it.

--
Prakash

PS : Thanks having cc-ed me as I'm not on the list.