[parisc-linux] Console/X problems on HCRX-24

[parisc-linux] Console/X problems on HCRX-24

[Stuart Brady]

Hi,

Firstly, I've just found that my HCRX-24 works with an LCD monitor.
This was news to me, as IIRC it had even failed to work with monitors
that claimed to support sync-on-green.  I hope that might help someone.

Secondly, I can confirm several problems reported by Johannes Raspe and
Andy Walker late last year:

1) The Tux colours are wrong.  I'll try to expand on that later.

2) The console colours aren't right... actually, the 'normal' colours
   work correctly, but the 'bright' colours are all white.  (Even bright
   black).  Switching to/from X seems to fix this.

3) X doesn't work properly in 32-bit mode.  It appears as though the X
   server is using 24-bit pixels, but the HCRX-24 card is expecting
   8-bits of padding per pixel...  So something like this:

   HCRX-24: R G B U|R G B U|R G B U|...
   X:       R G B|R G B|R G B|R G B|...

   That's consistent with the colour 'artefacts' that I'm seeing.  BTW,
   the right 1/4 of the screen is just whatever was left in the console
   before switching to X.  I'll have a look at this one, but I expect
   it's a bug in our STI code. :-(

Cheers,
-- 
Stuart Brady
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Re: [parisc-linux] Console/X problems on HCRX-24

[Stuart Brady]

On Tue, Nov 15, 2005 at 07:59:18PM +0000, Stuart Brady wrote:
> 3) X doesn't work properly in 32-bit mode.  It appears as though the X
>    server is using 24-bit pixels, but the HCRX-24 card is expecting
>    8-bits of padding per pixel...  So something like this:
> 
>    HCRX-24: R G B U|R G B U|R G B U|...
>    X:       R G B|R G B|R G B|R G B|...
> 
>    That's consistent with the colour 'artefacts' that I'm seeing.  BTW,
>    the right 1/4 of the screen is just whatever was left in the console
>    before switching to X.  I'll have a look at this one, but I expect
>    it's a bug in our STI code. :-(

Thanks to Max Grabert for the suggestion: adding the following line to
the "Screen" section in xorg.conf works for me:

	DefaultFbBpp	32

I would have expected the X server to be able to find this out for
itself, so I'm not sure if there's still a bug here.  I can't see
anything obviously wrong with stifb, fwiw.

Cheers,
-- 
Stuart Brady
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