Bug 10592

Summary:	Driver does a register/unregister 6 times....
Product:	xorg	Reporter:	Magnus Boman <captain.magnus>
Component:	Driver/Radeon	Assignee:	xf86-video-ati maintainers <xorg-driver-ati>
Status:	RESOLVED FIXED	QA Contact:	Xorg Project Team <xorg-team>
Severity:	normal
Priority:	medium
Version:	7.2 (2007.02)
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Magnus Boman 2007-04-10 02:20:13 UTC

When starting X, the radeon reports the following message 6 times, adding ~1-2 seconds to the X startup;

(II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
(II) RADEON(0): I2C device "DDC:ddc2" removed.

Tried to with NoDCC and DDCMode=off but to no avail.

Comment 1 Adam Jackson 2007-11-18 08:02:14 UTC

The DDC probe itself isn't so much the problem.  The real issue is RADEONDisplayDDCConnected() has a slow hack for some really old monitors that is (afaict) never relevant anymore.

Worse, it does this hack in a loop three times, even though xf86DoEDID_DDC2() already retries four times.  Not.  Fast.

I've patched this out in fedora:

http://cvs.fedoraproject.org/viewcvs/rpms/xorg-x11-drv-ati/devel/radeon-6.7.196-faster-ddc.patch?rev=1.1&view=auto

Comment 2 Alex Deucher 2008-12-02 23:56:43 UTC

this has been fixed for a while.

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