[Nouveau] *ERROR* EDID checksum is invalid

[Xavier]

Another apparently harmless message.. But I find it quite curious.
Especially that they seem pretty harmful in the case of
http://bugs.freedesktop.org/show_bug.cgi?id=25393

So my setup is nv35 with a 19' CRT screen connected to vga output.
I get random occurrences of this message :
[drm:edid_is_valid] *ERROR* EDID checksum is invalid, remainder is 161
[drm:edid_is_valid] *ERROR* Raw EDID:

But I do not get any of the bad symptoms described in bug 25393 : no
crashes, no screen deactivation, no corruption (though I did not
manage to make suspend-to-ram work yet). On the other hand, I do not
use that box much, so maybe I don't use it enough to get/see all the
bad symptoms.

And in my case, I doubt the raw edid is valid as it seems different
every time (and the remainder too).

I just made a fresh boot, with X started automatically. The error did
not occur. Then I restarted X (init 3 ; init 5) and it appeared. The
corresponding kernel log is attached.

I just had a look at the different EDID I got, and put 5 of them in a
file. It actually looks like 1 2 3 and 5 are the same EDID, but they
all seem to be cut, at a different place. I guess they would be valid
otherwise as I can see my screen model : MM904U
The 4th one is completely different though, but it happened right
after I played with gallium, got a lot of errors and X lock and killed
X.

So I guess I have mainly two questions, out of curiosity :
1) why does the edid seem to be randomly cut ?
2) why doesn't it have any apparent bad effects other than an error in
kernel log ?
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