opengl installed but doesnt work

Youri · 05-26-2005, 02:37 PM

i get this:
[sis_alloc.c:154]: Failure to allocate Z buffer.

wats the problem??

ghostdancer · 06-23-2005, 10:10 AM

Quote:

Originally posted by Youri
i get this:
[sis_alloc.c:154]: Failure to allocate Z buffer.

wats the problem??

I know this maybe late, but I hope it can still be a help.

Edit the xorg.conf file:

Under "Module" section, make sure there are the following lines:

Code:

Section "Module"
...
Load  "dri"
Load  "glx"
Load  "glcore"
...
EndSection

Under the "Device" section,

Code:

Section "Device"
...
Option     "DRI"        "True"
Option     "MaxXFBMem"  "16384"
...
EndSection

These two options is found from http://www.winischhofer.at/linuxsispart2.shtml#options, refer the option for DRI and MaxXFBMem. From what I have read, MaxXFBMem is not require if sisfb is loaded. But, even after I loaded sisfb, I still get the same error message. Thus, I removed sisfb from my system, and set the two options above.

Under the "DRI" section,

Code:

Section "DRI"
      Mode 0666
EndSection

NOTE: ... mean deleted text. Do not add '...' into the xorg.conf file.

Good luck!

ps: Try testings these setup under init 3, use startx to start the X. After it works, switch back to init 4.

Youri · 06-09-2006, 04:57 PM

almost a whole year later with my reply :P but then again
thanks for the reply but that is where the problem lies i have all those option (i should say it in past continues, im not using that box anymore

) it still didnt work the same with my laptop btw its an x700 and when i run glxgears its a okay but fgl_glxgears it says floating point exception (its ubuntu dapper drake but slamd just the same) could have to do something with the fact i have 15,4 inch widescreen? wat are the specs i need for it in the monitor section?