[NTLUG:Discuss] xhost question

[Steve Baker]

Val W. Harris wrote:
> Steve Baker wrote:
> 
>>
>> That might be - quite a few IRIX desktop widgets are written in OpenGL 
>> - even
>> some that you'd think were 'obviously' not (like gdiff for example).
>>
>> However, I'd be very suprised if 'xclock' has been rewritten into 
>> OpenGL - the
>> standard version most definitely isn't.
> 
> 
> I agree that xclock isn't an OpenGL app.  I think that xclock is part of 
> the standard set of apps started by toolchest.

Good point.

> Perhaps Fred could begin troubleshooting this by starting xclock
> manually on the host system.  If it appears on the client, we know that
> the "DISPLAY" environment variable and xhost permissions are set
> correctly.  If it doesn't appear, we trouble shoot that aspect.

Yes, exactly.

It should be possible to discover whether toolchest is an OpenGL app
or not by doing an 'ldd' on it and seeing whether it links to OpenGL
or not.

However, it should be possible for well-written OpenGL programs to
run in this way.   Fred should check that his Linux box has OpenGL
installed - not some *ancient* Mesa that drives the graphics card
directly (that wouldn't work) - but one of the reasonably modern
releases that integrates with X.

Some OpenGL programs may still not work (eg if they rely upon - but
do not correctly check for - some OpenGL extension) - but the majority
should be OK.

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