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Bug#254288: xserver-xfree86: [ati] Drops blue bit at depth 24-bit



tag 254288 = upstream
retitle 254288 xserver-xfree86: [ati/atimisc] poor support for color depths 16 and 24 on 264VT [Mach64 VT] rev 64
thanks

On Sat, Jul 10, 2004 at 12:23:53PM +1000, Peter Dey wrote:
> >There's more than one bit of blue at depth 24; there are 8 bits of blue
> >(and 8 bits of green, and 8 bits of red).
> >
> >Do you mean that the entire blue channel is missing at depth 24?
> 
> Yes, that's correct.  The entire blue channel is missing.
[...]
> >Can you elaborate?  What do solid red, blue, and green look like?
> >
> >% xlogo -fg red -bg black
> >% xlogo -fg green -bg black
> >% xlogo -fg blue -bg black
> 
> At 24-bit:
> -fg red	Red
> -fg green	Green
> -fg blue	Red
> 
> White (e.g. the background of google) looks like Yellow.
> 
> At 16-bit:
> -fg red	swirly pink, black and blue?
> -fg green	swirly pink, black and green?
> -fg blue	swirly blue, green and black?
> 
> However, White is still white....
> And black (e.g. background of a term window) is still black....

Thanks for following up.

This sounds pretty definitively like an upstream driver bug.  I'm tweaking
the bug parameters accordingly.

In the meantime I can only advise that you stick to color depth 8 (though
depth 15 might be worth a try).  I know that sucks.  :(

-- 
G. Branden Robinson                |       The Bible is probably the most
Debian GNU/Linux                   |       genocidal book ever written.
branden@debian.org                 |       -- Noam Chomsky
http://people.debian.org/~branden/ |

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