Newsgroup: it.comp.os.linux.iniziare
Titolo: libGL warning: 3D driver claims to not support visual

Qualcuno saprebbe aiutarmi a capire la nutura di questo errore
riportato da glxgears e tutte le applicazioni che tentano di andare in
3D ?
pippo@Ubuntu:~$ glxgears
libGL warning: 3D driver claims to not support visual 0x24
libGL warning: 3D driver claims to not support visual 0x28
libGL warning: 3D driver claims to not support visual 0x2c
libGL warning: 3D driver claims to not support visual 0x30
pippo@Ubuntu:~$
pippo@Ubuntu:~$ glxinfo
name of display: :0.0
libGL warning: 3D driver claims to not support visual 0x24
libGL warning: 3D driver claims to not support visual 0x28
libGL warning: 3D driver claims to not support visual 0x2c
libGL warning: 3D driver claims to not support visual 0x30
display: :0  screen: 0
direct rendering: Yes
pippo@Ubuntu:~$ more /var/log/Xorg.0.log|grep EE
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(EE) R128(0): No DFP detected
pippo@Ubuntu:~$
pippo@Ubuntu:~$ more /var/log/Xorg.0.log|grep WW
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(WW) The directory "/usr/share/X11/fonts/cyrillic" does not exist.
(WW) The directory "/usr/share/X11/fonts/CID" does not exist.
(WW) `fonts.dir' not found (or not valid) in
"/var/lib/defoma/x-ttcidfont-conf.d/dirs/CID".
(WW) R128(0): Video BIOS not detected in PCI space!
(WW) R128(0): Attempting to read Video BIOS from legacy ISA space!
(WW) R128(0): Video BIOS not found!
(WW) R128(0): Can't determine panel dimensions, and none specified.
pippo@Ubuntu:~$
Vi allego anche la configurazione della scheda video anche se non ho
dubbi che non sia un problema dovuto a questo:
Section "Device"
        Identifier      "ATI Technologies, Inc. Rage 128 Pro Ultra
(TR)"
        Driver           "ati"
        Option          "UseFBDev"                 "true"
        Option          "ForcePCIMode"           "true"
       #Option         "UseCCEFor2D"           "true"
       #Option         "AGPFastWrite"            "true"
        Option           "EnablePageFlip"        "true"
        Option           "AGPMode"                 "4"
        VideoRam      16384
Grazie

Aggiorno questo post nella speranza di trovare una soluzione, con
sorpresa scopro che la funzione glxheads funziona perfettamente pur
restituendo questo log:
pippo@ubuntu:~$ glxheads
glxheads: exercise multiple GLX connections (any key = exit)
Usage:
  glxheads xdisplayname ...
Example:
  glxheads :0 mars:0 venus:1
libGL warning: 3D driver claims to not support visual 0x24
libGL warning: 3D driver claims to not support visual 0x28
libGL warning: 3D driver claims to not support visual 0x2c
libGL warning: 3D driver claims to not support visual 0x30
Name: :0
  Display:     0x10027008
  Window:      0x2a00002
  Context:     0x1002faf8
  GL_VERSION:  1.2 Mesa 6.3.2
  GL_VENDOR:   VA Linux Systems, Inc.
  GL_RENDERER: Mesa DRI Rage 128 20041026
pippo@ubuntu:~$
mentre sia glxgears che glxdemo restituiscono lo stesso errore:
pippo@ubuntu:~$ glxgears
libGL warning: 3D driver claims to not support visual 0x24
libGL warning: 3D driver claims to not support visual 0x28
libGL warning: 3D driver claims to not support visual 0x2c
libGL warning: 3D driver claims to not support visual 0x30
pippo@ubuntu:~$
pippo@ubuntu:~$ glxdemo
libGL warning: 3D driver claims to not support visual 0x24
libGL warning: 3D driver claims to not support visual 0x28
libGL warning: 3D driver claims to not support visual 0x2c
libGL warning: 3D driver claims to not support visual 0x30
Resize event
Resize event
Redraw event
Redraw event
pippo@ubuntu:~$
Questo potrebbe far pensare che sia un problema legato esclusivamente
al 2D ?