[Bug 105046] Screen resolution reset to 1368x768 when turning monitor off

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105046

--- Comment #16 from Michael Zapf <forums18 at mizapf.de> ---
Maybe this is another indication that something goes wrong:

(screen at 1920x1200)

michael at capella:~> xrandr --verbose | grep EDID -A16
        EDID: 
                00ffffffffffff00412f271001010101
                0019010380362378eece50a3544c9926
                0f5054a56b808140a900a940b300d100
                010101010101283c80a070b023403020
                360022602100001a000000fc00565358
                2d3333300a2020202020000000fd0030
                551e4611000a202020202020000000ff
                00504c43393333303134470a202001a6
                020334714b010204850610111314151f
                38097f070f7f071507503e06c0497f00
                5706005f7e01677e00834f000066030c
                00110080011d8018711c1620582c2500
                06442100009e011d80d0721c1620102c
                258006442100009e011d007251d01e20
                6e28550006442100001e011d00bc52d0
                1e20b828554006442100001e0000008f

(turn off monitor, turn on again, screen now reset to 1920x1080)

michael at capella:~> xrandr --verbose | grep EDID -A16
michael at capella:~>

That is, there is no EDID data anymore.

---

I was looking for some tool to read the EDID channel, but I was not yet
successful. I am using openSUSE. I tried to download and compile read-edid, but
I get an error message from cmake about a missing setting of X86_LIBRARY.

Then I found a python tool on Github (edid-rw), but I cannot find the smbus
python module (not in the repositories).

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