Q: 'MacModel' replacement for radeon driver?

Albrecht Dreß albrecht.dress at arcor.de
Sun Jan 27 03:38:44 PST 2013

Hi Alex:

I played a little more with the regs, but unfortunately could not find a solution.  I.e. I still don't have a usable signal on the connector.

Maybe it would be helpful to check the radeon register settings from Mac OS 10.4.  What do you think?  Unfortunately, the radeonreg tool doesn't compile on OS X out of the box, and using some hacks I found on the internet, it doesn't produce any usable output.  Probably I have to dig into Apple's iokit for that.  Or do you know about a tool which would enlighten the situation?


Am 05.01.13 12:31 schrieb(en) Albrecht Dreß:
> Hi Alex:
> Am 03.01.13 20:36 schrieb(en) Alex Deucher:
>> hmmm... everything else looks pretty good.  Try the attached patch.
> This doesn't change the situation.
>> Maybe the pll isn't quite right.  You might try diffing the 2 reg dumps you sent me originally and using them as a guide to identify which registers are problematic.  Boot up to the broken state and then use radeonreg to set the registers to the values from the working dump.  e.g.,
>> radeonreg regset 0x00000250 0x009f0013
>> Some of the registers are related the memory configuration of each driver so try the following registers:
>> 00000050 03000600
>> 00000054 00008048
>> 00000058 ff002102
>> 00000204 008c051b
>> 00000250 009f0013
>> 00000254 03ff0026
>> 00000278 009f03ff
>> 0000027c 00000030
>> 00000284 000300cd
>> 000002c4 008c001e
>> 000002c8 00860004
>> 000002f0 20007c7c
>> 000003f8 02000200
>> 0000088c 07880100
>> 00000d04 00000806
> I set all these regs, one by one, to the values from the working fbdev configuration of kernel 3.6.5, and double-checked with 'radeonreg regs radeon' that they actually have these values.  However, the situation doesn't change, i.e. these is still no output on the connector.
> Thanks,
> Albrecht.
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