DDC-CI

[Alexander E. Patrakov]

Hello,

there are some monitors (mostly by Samsung) that don't have any controls 
on them, and their settings such as brightness and contrast must be 
controlled by software via the DDC-CI protocol.

Unfortunately, the program that sends DDC-CI commands to such monitors 
(ddccontrol) appears to be no longer maintained, and is incompatible 
with the latest graphics chipsets. Also, when sending such commands, it 
bypasses the X driver (i.e.: reimplements I2C for each supported card), 
which is a dirty hack.

What does it take to design and write an extension to Xorg that reuses 
the existing I2C code to send DDC-CI commands? I have some (but very 
few) time to spend on this if someone will guide me, and can test DDC-CI 
at home on a Samsung 770P monitor connected to the 965G onboard graphics 
via DVI (i.e., configuration currently unsupported by ddccontrol).

One more thing: NVIDIA appears to have done this already in their driver.

-- 
Alexander E. Patrakov