[Nouveau] Monitor with corrupted EDID

[mwesten]

On 02/08/2013 03:23 AM, Flavio Castelli wrote:
> On 02/07/2013 08:37 PM, mwesten wrote:
>> I recently used a DOS program called ddcw.exe to fix the corrupted EDID
>> on one of my monitors.
>
> I already tried to write the good EDID into the monitor but I failed. I
> also tried to do that using i2cset with the same result. I suspect the
> EEPROM is write protected...
>
> I'll give a shot to this program.

My suspicion is that if the EDID data got corrupted in the first place, 
then it's not protected.  I don't know about i2cset, or any other methods.

>> If that doesn't work, the drm_kms_helper module in newer kernels should
>> have a parameter to get around the problem.
>>
>> See https://www.osadl.org/Single-View.111+M50eaf2f2c66.0.html
>
> That's working!
>
> My monitor now is powered and I can use it.
>
> There's only one minor issue: the nouveau module keeps complaining about
> the wrong EDID received by this monitor. Is there a way to tell the
> driver to stop probing the monitor?

I've noticed that too, and I'm not aware of a way to prevent it.

> Thanks a lot for the help

No problem.

-Mike