On Sun, Jan 27, 2013 at 6:38 AM, Albrecht Dreß <[email protected]> wrote: > 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?
We've checked all the relevant registers, dumping regs from OS X won't help. Perhaps the KMS driver is trying to point the display at an invalid MC address or something like that. Others have reported r1xx/r2xx radeons working ok with KMS so it may be something mac or ppc specific. Alex > > Thanks, > Albrecht. > > > > 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. _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
