DDC on Thinkpad x220

From: Pavel Machek
Date: Mon Sep 30 2019 - 17:13:48 EST


Hi!

Thinkpad X220 should be new enough machine to talk DDC to the
monitors, right? And my monitor has DDC enable/disable in the menu, so
it should support it, too...

But I don't have /dev/i2c* and did not figure out how to talk to the
monitor. Is the support there in the kernel? What do I need to enable
it?

lspci says:

00:02.0 VGA compatible controller: Intel Corporation 2nd Generation
Core Processor Family Integrated Graphics Controller (rev 09)

Thanks,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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