[GTALUG] Intel GPU support for HDMI 2.0 (UltraHD)

D. Hugh Redelmeier hugh at mimosa.com
Tue Feb 11 09:39:29 EST 2020


| From: Nicholas Krause via talk <talk at gtalug.org>

| Readability of text is what I was talking about not just color contrast.

OK.  Most but not all TV sets are fine for this.  I would not trust
the RGBW displays but I haven't tried them.

Also: go for IPS or VBA technology.

I think that I mentioned this in my Lightning Talk.

| A lot of people assume that reading text is the same on all monitors,
| it isn't and a lot of the pro level displays are better at this.

"pro level" sounds like a marketing term.  Perhaps you mean: very
expensive, aimed at professional _____.  Photographers?
Videographers? "Prosumers"?  Traders?  Programmers?  Engineers?
Architects?

| Your free
| to disagree that matters. However in my view it does help.

Opinions can be refined by research.  That's what I've tried to
contribute to, on this list and my talk.

| In addition I was also hinting at how well dpi is implemented at a higher
| resolution, which does matter. Scaling for a higher resolution in text
| is very much dependent on this. For whatever reason better dpi scaling
| and text scaling almost always goes hand in hand with better color contrast.

If you are letting your monitor do scaling you are doing it wrong.
You should let your computer do that.

One exception: if a computer only does 1920x1080, you can let a
TV/monitor double the pixels in each dimension.  This is dumb in the
long term but sometimes you need to do it for a short time (eg. to
adjust firmware settings in a server).  (It's really annoying to not
be able to see text during POST and the subsequent startup.)

Scaling TV or movies is an interesting problem since it extends into
the 4th dimension (time).  You really don't want to get into that with
a monitor.  In fact, you want to turn off any multi-frame processing
that a TV does because it will add latency to the display.

| My point is that most people focus on certain things like resolution
| without all the details.

True.  Again, this is why my talk was "what I've learned about
UltraHD".  Actual experience is enlightening.  Reading specs is
important but not sufficient.  Ergonomics is full of surprises.  One
of them is: not everyone is the same.  That's why I tried to frame my
talk as about me :-)


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