[sldev] Ubuntu Runtime Error SDL

[David Fries]

glxinfo:
name of display: :0.0
display: :0  screen: 0
direct rendering: No
server glx vendor string: SGI

That's software rendering.

Sorry to say it, but if you want hardware acceleration, you'll have to
download the binary blob of code from nVidia and taint your kernel.
There are some people working on reverse engineering the nVidia
drivers, but it will be a while before that is ready.

You'll have to ask Linden Labs why they won't accept a 16 bit depth
buffer, and Mesa why they only support a 16 bit depth buffer and not a
24 bit depth buffer.

On Thu, Mar 01, 2007 at 12:11:47AM -0800, truxpin at adsl-209-233-23-82.dsl.snfc21.pacbell.net wrote:
> > What graphics card do you have?
> 
> The ubuntu machine has nVidia GeForce2 MX400. Nothing spectacular, but fwiw
> it works ok under win2000 with LL's SL clients.
> 
> > Is your display using hardware OpenGL acceleration?
> 
> The box says "OpenGL ICD for Win98 & 2000.
> 
> > I've include a patch that tries a 16 bit depth buffer if the initial 
> > OpenGL context fails.
> 
> I applied this and it does the trick. Console message are attached for
> where the patch runs. Client screen comes up and I am able to connect to
> MG. It is very slow, 0.7 frame rate, (running from build directory) but that
> is another issue.
> 
> > ... post the visuals of glxinfo for your display.
> 
> glxinfo dump attached after console messages.
> 
> Is the problem a lack of flexibility in the client, a mis-match in libraries
> or some setup problem of ubuntu, Xwindows or the machine leading to
> lessening of the graphics capabilities?
> 
> Thanks for you help!
> Fremont Cunningham
> 
>    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 16  0  0  0  0  0  0 0 None
> 0x24 24 tc  0 24  0 r  y  .  8  8  8  0  0 16  8 16 16 16  0  0 0 None
> 0x25 24 tc  0 32  0 r  y  .  8  8  8  8  0 16  8 16 16 16 16  0 0 None
> 0x26 24 tc  0 32  0 r  .  .  8  8  8  8  0 16  8 16 16 16 16  0 0 None
> 0x27 24 dc  0 24  0 r  y  .  8  8  8  0  0 16  0  0  0  0  0  0 0 None
> 0x28 24 dc  0 24  0 r  y  .  8  8  8  0  0 16  8 16 16 16  0  0 0 None
> 0x29 24 dc  0 32  0 r  y  .  8  8  8  8  0 16  8 16 16 16 16  0 0 None
> 0x2a 24 dc  0 32  0 r  .  .  8  8  8  8  0 16  8 16 16 16 16  0 0 None
> 
> end.

-- 
David Fries <david at fries.net>
http://fries.net/~david/ (PGP encryption key available)