[Bug 47007] HDMI monitor polling causing 100ms rendering stalls

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https://bugs.freedesktop.org/show_bug.cgi?id=47007

--- Comment #23 from Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxxxx> 2012-03-15 07:56:20 UTC ---
(In reply to comment #21)
> (In reply to comment #15)
> > Bad news from a different motherboard. This one has DVI-D and DP connectors.
> > With a DVI monitor connected stalls are still there due to the shared_ddc being
> > true (DDC shared between DVI and VGA). Connectors look like this here:
> > 
> > [drm] Radeon Display Connectors
> > [drm] Connector 0:
> > [drm]   DisplayPort
> > [drm]   HPD1
> > [drm]   DDC: 0x6430 0x6430 0x6434 0x6434 0x6438 0x6438 0x643c 0x643c
> > [drm]   Encoders:
> > [drm]     DFP1: INTERNAL_UNIPHY
> > [drm] Connector 1:
> > [drm]   DVI-D
> > [drm]   HPD2
> > [drm]   DDC: 0x6440 0x6440 0x6444 0x6444 0x6448 0x6448 0x644c 0x644c
> > [drm]   Encoders:
> > [drm]     DFP2: INTERNAL_UNIPHY
> > [drm] Connector 2:
> > [drm]   VGA
> > [drm]   DDC: 0x6440 0x6440 0x6444 0x6444 0x6448 0x6448 0x644c 0x644c
> > [drm]   Encoders:
> > [drm]     CRT1: INTERNAL_KLDSCP_DAC1
> > 
> 
> What system is this?  Most new boards don't have shared ddc setups.

FUJITSU D3003-S2

> Does DDC
> work on both the VGA and DVI ports?

Yes as far as I can tell, both connectors successfully fetch EDID.

>  Can you send me a copy of the vbios?
> 
> (as root)
> (use lspci to get the bus id)
> cd /sys/bus/pci/devices/<pci bus id>
> echo 1 > rom
> cat rom > /tmp/vbios.rom
> echo 0 > rom

Will attach shortly.

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