Mailinglist Archive: radeonhd (622 mails)

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Re: [radeonhd] Blank Screen : MacBook Pro
  • From: Matt Kraai <kraai@xxxxxxxxx>
  • Date: Wed, 3 Oct 2007 07:26:03 -0700
  • Message-id: <20071003142603.GA6675@xxxxxxxxx>
On Wed, Oct 03, 2007 at 03:27:49PM +0200, Egbert Eich wrote:
> I've pushed a pile of fixes on Thrusday night which have fixed a load
> of DDC problems. Unfortunately not all of them.
> Do you see any other bits set in the  R5_DC_I2C_STATUS1 register?

Yes.

> (EE) RADEONHD(0): SW_STATUS: 0x2 4988

This appears to be the R5_DC_I2C_NACK bit.  I don't have an external
monitor connected and rhd_conntest displays

> Checking connectors on 0x71C5, 0x106B, 0x0080  (@01:00:00):
>   Load Detection: RHD_OUTPUT_DACB
>   HotPlug: RHD_HPD_0
>   DDC: RHD_DDC_NONE 
>   LVDS Info:
>         18bits, dual link, LDI Panel found.
>         Power Timing: 0xF9F, 0x000, 0x03, 0x19, 0x1F4
>         Macro: 0x0C720407, Clock Pattern: 0x0063

Is DDC supposed to work in this case?

-- 
Matt
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