[Bug 64371] [snb] ddccontrol doesn't work on kernels >= 3.10.5

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=64371

--- Comment #19 from Jean Delvare <khali at linux-fr.org> ---
dbzix: Address 0x37 is where the DCC/CI interface is implemented, so this is
the address ddccontrol attempts to talk to. It should get an ack for every
message there, and it does for you with kernel 3.2 but no longer for kernel
3.10. Oddly enough the i2cdetct output shows address 0x37 as responsive, so
most likely it's not completely dead but message transmission between the
master (the Intel chip) and the slave (the display) fails to complete. I have
no idea why, sorry.

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