[lug] Dell Optiplex 9020 + ubuntu + 4k monitor

[Bear Giles]

It's all 4k-ready HDMI. This hardware was driving the monitor at 4k with an
old ubuntu version that had been release-update'd a few times. It only
broke when I did a fresh install of 19.10.

On Thu, Nov 7, 2019 at 10:06 AM D. Stimits <stimits at comcast.net> wrote:

>
> On November 7, 2019 at 9:49 AM Bear Giles <bgiles at coyotesong.com> wrote:
>
> ...
> What's the current incantation to tell the display to auto-detect the
> hardware and download any required drivers?
> ...
>
> What kind of connector? If it is HDMI, then the query is through the "DDC"
> wire (an i2c protocol powered by the video card). Some other types also
> provide DDC, e.g., DisplayPort. An old style 15-pin D-Sub VGA has no such
> wire and thus there is no ability to query a monitor like that. Thus the
> older monitors have a mandatory "driver disk" (which is really just a
> database of parameters which EDID would provide if it existed).
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