[Bug 106291] drm.edid_firmware override does not work

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106291

--- Comment #25 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
(In reply to Wolfgang Haupt from comment #24)
> Created attachment 139321 [details]
> dpcd dump
> 
> Please note:
> I have done this using ubuntu with drm-tip mainline kernel from 2.5.2018, as
> my other system is a LibreELEC linux which has no packetmanager, dd didn't
> work and I have no ddrescue there.
> Hope it doesn't matter, both are quite recent drm-tip kernels.

00000000  12 14 c4 01 01 15 01 81  00 00 04 00 0f 00 04 00  |................|

So it does in fact advertize 5.4Gbps link rate.

So it seems the the problem is due to the driver not reading/parsing the DPCD
when we force the connector state. Not and impossible thing to do, but would
certainly require shuffling a bunch of code around.

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