C&T ct65545 problem

[Yan Seiner]

Adam Jackson wrote:
> On Tue, 2009-10-27 at 11:40 -0700, Yan Seiner wrote:
>
>   
>> Not sure if the effort is worth it for 15 year old hardware....  
>> Wouldn't surprise me if I'm one of less than a dozen who still has this 
>> stuff in working order.
>>
>> OTOH, X is being used more and more on embedded platforms, so it 
>> wouldn't hurt to have a "DefaultDepth" fallback - if 24 doesn't work, 
>> try 16, if that doesn't work, try 8.
>>     
>
> The vesa driver has that already, in a sense:
>
>     depths = VBEFindSupportedDepths(pVesa->pVbe, pVesa->vbeInfo, &flags24,
>                                     V_MODETYPE_VBE);
>
>     /* Preferred order for default depth selection. */
>     if (depths & V_DEPTH_24)
>         defaultDepth = 24;
>     else if (depths & V_DEPTH_16)
>         defaultDepth = 16;
>     else if (depths & V_DEPTH_15)
>         defaultDepth = 15;
>     /* ... */
>
> So we should do the right thing, if the BIOS is polite enough to not lie
> to us.  Of course, it could be lying.
>
> Having the _server_ retry successively smaller depths is a fair idea,
> but really hard to implement given the way driver setup works right now,
> and fixing it sort of requires fixing all the drivers in the same pass.
>
> - ajax
>   
fwiw, here's the log file.

The auto fallback doesn't work on this hardware (not surprising, the 
bios is very, very weird.)

--Yan



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