Re: [Linux-fbdev-devel] setcolreg vs. 565

[Benjamin H. <be...@ke...>]

>On Fri, 23 Nov 2001, Benjamin Herrenschmidt wrote:
>> For 5:6:5 things are slightly different since R and B have
>> a 0..31 range while G ranges from 0..63. In the DAC, the ATI
>> chip right-align these, so a given regno is actually split
>> into regno<<3 for R and B values and regno<<2 for G. However,
>> that means we should expose to userland a 64 entries cmap
>> instead of 32, am I wrong ? In this case however, when setting
>> cmap for regno 32..63, we should ignore R and B and only use
>> G, or did I miss something ?
>
>Yes, that's what I did for atyfb (experimental 565 patch which doesn't work
>very well yet :-(

Ok, well, it doesn't quite work yet but I suspect some X brokenness here.

I'll got that fixed in both radeonfb and aty128fb this week-end hopefully.

Ben.