[GTALUG] cheap today: 43 inch UltraHD TV

Lennart Sorensen lsorense at csclub.uwaterloo.ca
Mon Jun 26 10:03:38 EDT 2017


On Sat, Jun 24, 2017 at 10:30:12AM -0400, D. Hugh Redelmeier via talk wrote:
> tl;dr: if you yearn for monitor resolution, have I got a deal for you!
> 
> <http://forums.redflagdeals.com/real-canadian-superstore-rcss-haier-uhd-4k-tv-43-55-298-468-no-tax-june-24th-2096245/>
> 
> I use a cheap and nasty 39" UltraHD TV as my desktop monitor.  I am very 
> happy with the experience.
> 
> Real Canadian Superstore is selling 43" UltraHD TVs for $298 + EHF but 
> with HST already included in that price ($263.72 before taxes).  I expect 
> that it is a better TV than my 3 year old 39".
> 
> I imagine 43" is a good size for a desktop monitor, but I'm not sure.  I'm 
> happy with 39"
> 
> - I can view it at monitor-distance (25"?  I haven't measured) and see 
>   text on it at normal pixels/character
> 
> - I don't get whiplash looking around on my screen (but I do have glasses 
>   dedicated to this task -- a great investment)
> 
> - it fits on my desk
> 
> - it has multiple inputs so I can connect several computers at once
> 
> There are flaws with my monitor.  At full resolution (the only one I every 
> use) it only refreshes at 30Hz.  I don't find that bad (I don't game) but 
> I think that the 43" monitor does not have this limitation.
> 
> Many TV sets do "chroma sub-sampling"
> <https://en.wikipedia.org/wiki/Chroma_subsampling>
> This means that the colour (not brightness) on adjacent pixels is not 
> totally independant.  My monitor uses 4:2:2 sampling and that creates 
> "artifacts" in some cases.  I really dislike this in theory but I have 
> rarely found it to be a problem.  I have no idea what chroma subsampling, 
> if any, the 43" TV does.  I would guess 4:2:2.
> 
> I expect to replace my TV when a cheap one comes out with HDR (High 
> Dynamic Range) and no chroma subsampling.
> 
> TV sets don't have DisplayPort inputs.  Too bad.  HDMI has struggled to 
> keep up with the bandwidth of UltraHD.  My TV's 30Hz limitation came from 
> that (the HDMI standard has since been upgraded).  Not all video cards can 
> handle this.

Yes it seems to have HDMI 2.0 with HDCP 2.2, so if the video card can
do that, it should do 60 Hz.

> Nouveau doesn't drive my monitor properly so I'm using the proprietary 
> nvidia driver.  Nouveau may have been fixed but I only test every year or 
> so.  I don't have a powerful enough ATI card to test.  I haven't tried 
> Intel GPUs.

-- 
Len Sorensen


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