[Bug 70934] [Regression] Problem with colors (depth?) on DCE5 Barts (HD69xx)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70934

--- Comment #8 from Rafał Miłecki <zajec5 at gmail.com> ---
There is my EDID:

00ffffffffffff004ca333d000000000
0c150104952616780aa0558d515a962a
1c505400000001010101010101010101
0101010101016a4d80a07038fc413020
36007ed710000018d49a80a07038fc41
302036007ed710000038000000fc0053
414d53554e470a2020202020000000fc
00313733485430322d4330310a200035

0x12: 0x01    EDID version
0x13: 0x04    EDID revision
0x14: 0x95    Input
0x15: 0x26    Width [cm]
0x16: 0x16    Height [cm]
0x17: 0x78    Gamma
0x18: 0x0a    Features

Let's take a look at that 0x95.
0x80 bit indicates that this is a digital signal interface
In this situation 0x70 bits store info about color depth.
0x10 indeed means 6 bits per color.

Btw I've noticed that when 0x80 bit is set we also should look at bits 0x18
from 0x18 (Features) to see supported color format(s).
My features bits are 0x0a which gives 0x0a & 0x18 = 0x8. That means my display
supports RGB 4:4:4 as well as YCbCr 4:4:4. But does it change anything?

Any other ideas? :|

This notebook is Samsung NP700G7A-S01PL

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