AVS Forum | Home Theater Discussions And Reviews (https://www.avsforum.com/forum/)
-   Digital Projectors - Under $3,000 USD MSRP (https://www.avsforum.com/forum/68-digital-projectors-under-3-000-usd-msrp/)
-   -   Optoma UHD40 crazy brightness effect from Macbook HDMI (https://www.avsforum.com/forum/68-digital-projectors-under-3-000-usd-msrp/3089882-optoma-uhd40-crazy-brightness-effect-macbook-hdmi.html)

blondie88 09-10-2019 03:22 AM

Optoma UHD40 crazy brightness effect from Macbook HDMI
 
Hey guys,

No problems in general when watching my Optoma UHD 40 connected to Netflix etc through XBox1X, however when I watch a football match through the Sky Sports app (in Europe) on my Macbook, and connect via HDMI into my amp and then to the projector, all of the whites and lighter colours are completely blown out giving a strange over-contrasty over-saturated effect. The picture on the laptop still looks completely normal.

I have noticed a similar effect when watching the occasional downloaded 4K movie through an external drive connected to my laptop, and usually end up just downloading the same movie again in 1080 because the colours look much better. Which is also a bit of a shame because obviously I got the projector with 4k movies in mind.

Any idea why these two issues are happening? Is it something to do with a conflicting HDR setting?

DunMunro 09-10-2019 11:07 AM

Quote:

Originally Posted by blondie88 (Post 58536980)
Hey guys,

No problems in general when watching my Optoma UHD 40 connected to Netflix etc through XBox1X, however when I watch a football match through the Sky Sports app (in Europe) on my Macbook, and connect via HDMI into my amp and then to the projector, all of the whites and lighter colours are completely blown out giving a strange over-contrasty over-saturated effect. The picture on the laptop still looks completely normal.

I have noticed a similar effect when watching the occasional downloaded 4K movie through an external drive connected to my laptop, and usually end up just downloading the same movie again in 1080 because the colours look much better. Which is also a bit of a shame because obviously I got the projector with 4k movies in mind.

Any idea why these two issues are happening? Is it something to do with a conflicting HDR setting?

What picture mode are you watching your sports and downloaded movies in? Many laptops cannot pass an HDR signal through external HDMI.

blondie88 09-11-2019 01:10 AM

Quote:

Originally Posted by DunMunro (Post 58538850)
What picture mode are you watching your sports and downloaded movies in? Many laptops cannot pass an HDR signal through external HDMI.

I just have it set on Cinema mode all the time, and HDR: auto...

DunMunro 09-11-2019 07:56 AM

Quote:

Originally Posted by blondie88 (Post 58541480)
I just have it set on Cinema mode all the time, and HDR: auto...

Can you set your laptop to output YcbCr? Also try using limited range (16-235) rather than full range (0-255). I don't use a Mac so I don't know the display settings on them.


All times are GMT -7. The time now is 08:37 PM.

Powered by vBulletin® Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
vBulletin Security provided by vBSecurity (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.