[Bug 86861] [rv6xx] When using a hardware KVM switch between computers EDID sometimes not detected/display goes fuzzy

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86861

Alex Deucher <alexdeucher at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |NOTOURBUG

--- Comment #3 from Alex Deucher <alexdeucher at gmail.com> ---
(In reply to Shawn Starr from comment #2)
> The newer firmware updates don't address VGA EDID detection, at least the
> documentation doesn't list this.
> 
> One thought though, we don't cache the EDID information if it was previously
> detected? If you switch the screen, does that effectively mean the cable is
> disconnected on the other computer?

For analog displays like VGA, the drm core polls every 10 seconds or so to see
if the monitor is still there since the older analog connctors like VGA do not
support hotplug like digital connectors like DVI or HDMI do.

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