Is it possible to distinguish between HDMI and DVI in i915?

[Jani Nikula]

On Mon, 20 May 2024, Arkadiusz Drabczyk <arkadiusz at drabczyk.org> wrote:
> My Asus Z97-A motherboard has DVI and HDMI connectors but i915 shows
> 2x HDMI ports (and the 3rd one for DP but a separate DP1 is also
> shown). Would it be possible to distinguish between DVI and HDMI in
> the driver code for example by reading some undocumented VBT registers
> or testing port characteristics or something?

Please file a bug as described at [1], attach dmesg with drm.debug=14
and VBT as described in the link, and we'll be able to tell you more.

Thanks,
Jani.


[1] https://drm.pages.freedesktop.org/intel-docs/how-to-file-i915-bugs.html



-- 
Jani Nikula, Intel