prompt> glxinfo
name of display: localhost:0.0
libGL error: required WGL extension WGL_ARB_multisample is missing
libGL error: required WGL extension WGL_ARB_multisample is missing
Error: couldn't find RGB GLX visual or fbconfig
9 GLX Visuals
visual x bf lv rg d st colorbuffer sr ax dp st accumbuffer ms cav
id dep cl sp sz l ci b ro r g b a F gb bf th cl r g b a ns b eat
----------------------------------------------------------------------------
0x021 24 tc 0 32 0 r y . 8 8 8 8 . s 0 24 8 16 16 16 16 0 0
None
0x058 24 tc 0 32 0 r . . 8 8 8 8 . s 0 0 0 0 0 0 0 0 0
None
0x059 24 tc 0 32 0 r y . 8 8 8 8 . s 0 0 0 16 16 16 16 0 0
None
0x05a 24 tc 0 32 0 r . . 8 8 8 8 . s 0 24 8 0 0 0 0 0 0
None
0x05b 24 tc 0 32 0 r . . 8 8 8 8 . s 0 16 0 0 0 0 0 0 0
None
0x05c 24 tc 0 32 0 r y . 8 8 8 8 . s 0 16 0 16 16 16 16 0 0
None
0x05d 24 tc 0 32 0 r y . 8 8 8 8 . s 0 0 0 16 16 16 16 0 0
None
0x05e 24 tc 0 32 0 r y . 8 8 8 8 . s 0 16 0 16 16 16 16 0 0
None
0x05f 24 tc 0 32 0 r y . 8 8 8 8 . s 0 24 8 16 16 16 16 0 0
None
9 GLXFBConfigs:
visual x bf lv rg d st colorbuffer sr ax dp st accumbuffer ms cav
id dep cl sp sz l ci b ro r g b a F gb bf th cl r g b a ns b eat
----------------------------------------------------------------------------
0x046 24 tc 0 32 0 r . . 8 8 8 8 . s 0 0 0 0 0 0 0 0 0
None
0x047 24 tc 0 32 0 r y . 8 8 8 8 . s 0 0 0 16 16 16 16 0 0
None
0x048 24 tc 0 32 0 r . . 8 8 8 8 . s 0 24 8 0 0 0 0 0 0
None
0x049 24 tc 0 32 0 r y . 8 8 8 8 . s 0 24 8 16 16 16 16 0 0
None
0x04a 24 tc 0 32 0 r . . 8 8 8 8 . s 0 16 0 0 0 0 0 0 0
None
0x04b 24 tc 0 32 0 r y . 8 8 8 8 . s 0 16 0 16 16 16 16 0 0
None
0x04c 24 tc 0 32 0 r y . 8 8 8 8 . s 0 0 0 16 16 16 16 0 0
None
0x04d 24 tc 0 32 0 r y . 8 8 8 8 . s 0 16 0 16 16 16 16 0 0
None
0x04e 24 tc 0 32 0 r y . 8 8 8 8 . s 0 24 8 16 16 16 16 0 0
None
prompt> setenv LIBGL_ALWAYS_SOFTWARE 1
prompt> glxinfo
name of display: localhost:0.0
Error: couldn't find RGB GLX visual or fbconfig
9 GLX Visuals
visual x bf lv rg d st colorbuffer sr ax dp st accumbuffer ms cav
id dep cl sp sz l ci b ro r g b a F gb bf th cl r g b a ns b eat
----------------------------------------------------------------------------
0x021 24 tc 0 32 0 r y . 8 8 8 8 . s 0 24 8 16 16 16 16 0 0
None
0x058 24 tc 0 32 0 r . . 8 8 8 8 . s 0 0 0 0 0 0 0 0 0
None
0x059 24 tc 0 32 0 r y . 8 8 8 8 . s 0 0 0 16 16 16 16 0 0
None
0x05a 24 tc 0 32 0 r . . 8 8 8 8 . s 0 24 8 0 0 0 0 0 0
None
0x05b 24 tc 0 32 0 r . . 8 8 8 8 . s 0 16 0 0 0 0 0 0 0
None
0x05c 24 tc 0 32 0 r y . 8 8 8 8 . s 0 16 0 16 16 16 16 0 0
None
0x05d 24 tc 0 32 0 r y . 8 8 8 8 . s 0 0 0 16 16 16 16 0 0
None
0x05e 24 tc 0 32 0 r y . 8 8 8 8 . s 0 16 0 16 16 16 16 0 0
None
0x05f 24 tc 0 32 0 r y . 8 8 8 8 . s 0 24 8 16 16 16 16 0 0
None
9 GLXFBConfigs:
visual x bf lv rg d st colorbuffer sr ax dp st accumbuffer ms cav
id dep cl sp sz l ci b ro r g b a F gb bf th cl r g b a ns b eat
----------------------------------------------------------------------------
0x046 24 tc 0 32 0 r . . 8 8 8 8 . s 0 0 0 0 0 0 0 0 0
None
0x047 24 tc 0 32 0 r y . 8 8 8 8 . s 0 0 0 16 16 16 16 0 0
None
0x048 24 tc 0 32 0 r . . 8 8 8 8 . s 0 24 8 0 0 0 0 0 0
None
0x049 24 tc 0 32 0 r y . 8 8 8 8 . s 0 24 8 16 16 16 16 0 0
None
0x04a 24 tc 0 32 0 r . . 8 8 8 8 . s 0 16 0 0 0 0 0 0 0
None
0x04b 24 tc 0 32 0 r y . 8 8 8 8 . s 0 16 0 16 16 16 16 0 0
None
0x04c 24 tc 0 32 0 r y . 8 8 8 8 . s 0 0 0 16 16 16 16 0 0
None
0x04d 24 tc 0 32 0 r y . 8 8 8 8 . s 0 16 0 16 16 16 16 0 0
None
0x04e 24 tc 0 32 0 r y . 8 8 8 8 . s 0 24 8 16 16 16 16 0 0
None
On 28 June 2018 at 14:28, Jon Turney <jon.tur...@dronecode.org.uk> wrote:
> On 27/06/2018 19:00, William Mitchell wrote:
>
>> Thanks for the suggestions.
>>
>> I thought updating the display driver sounded good, since this is a very
>> old computer, but when I asked to update the driver it searched for a new
>> driver and eventually said my driver is up to date.
>>
>
> Can you show the output of 'glxinfo' and 'LIBGL_ALWAYS_SOFTWARE=1
> glxinfo', please?
>
> I set LIBGL_ALWAYS_SOFTWARE to 1. That got rid of the WGL error messages,
>> but I still get the other messages:
>>
>
> Yeah, on second thoughts we should be already falling back to software
> rendering if we can't use WGL, so this isn't really going to help.
>
> Insufficient GL support
>> error: unable to plot due to insufficient OpenGL support
>>
>> This is harder, because it doesn't tell me _what_ is missing (or
>> "insufficient").
>>
>
> These are messages from octave.
>
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