ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
I can successfully connect using UHD 8 bit, but 10 bit will not work. Is there anyone who has managed to connect using UHD 10 bit? And if so, any tips on how to do it!
Hi,
There are a couple of places where UHD Deep colour needs to be turned on to use 10 bit. Firstly enable it for HDMI 2 on the screen (the port that the sound centre uses to connect to the screen):
Home -> Settings -> Picture & Programmes -> Picture (I think it is in the 'Picture' menu, but I'm doing this from memory, so if not check under 'General')
Then enable it for the HDMI port that your sky box is connected to on the sound centre (HDMI A/B/C or D) under:
Home -> Settings -> Sound & Beolink -> Sources
Hope this helps,
Martin.
Hi. Thanks for replying. Yes, I have both Ultra Deep Colour settings turned on, but still won’t connect at 10 bit
Any more thoughts?
New: Beovision Harmony, Beolab 50's, Beolab 28's, Beolab 18's, Beolab 17's, Beosound Stage & LG, Beosound 2, Beoplay M3, Beoplay A1, Beoplay Portal, Beoplay H4 gen 2, Beoplay E8 3.0
Mikipedia on YouTube: https://www.youtube.com/c/Mikipedia
Mikipedi4 on Twitch: https://www.twitch.tv/mikipedi4
Mikipedia on Intagram: https://www.instagram.com/mikipedi4/
Old: Beosound 9000 mk3, Beolab 3's, Beovision Eclipse, Beolab 1's, Beolab 2, Beovision 10-46, Overture 2300, beolab 8000's, Beolab 4000's, Beovision avant 32" etc. etc.
I've generally found the sky q boxes don't reliably detect 10 bit if you use the auto detect, but I've never had an issue getting them to use 10 bit when selecting this option manually providing both the UHD deep colour settings are turned on. You usually get a blank screen for a number of seconds, then just about enough time to select the button confirming it is working before the timer runs down to zero and it reverts back to the previous settings.
As Mikipedia mentioned, it may be a cable issue so would definitely be worth trying it connected to one of the HDMI ports on the screen (remembering to enable UHD deep colour on that port too). You obviously won't have PUC control then but it may help to narrow down the cause.
That could well be the reason, but I won’t be connecting sky q box to the screen because I want to use PUC. Can you explain why it makes a difference if you conn3ct it to the screen rather than the speaker
The suggestion is to connect it directly to the screen for testing, not permanently, as it may aid in determining where the fault lies.
If it works when connected directly to the screen, but not to the sound centre (assuming you use the same cable), then it is likely the issue is with the sound centre, or the short HDMI cable connecting the sound centre to the screen.
If it still doesn't work when connected directly to the screen, then the issue is likely to be with the sky box or the cable you are using (or I guess, potentially with the main board of the screen, but that is unlikely).
Are you using the HDMI cable supplied with the sky q box? If not, how long is the cable, and is it premium certified? Not all cables will work with the higher bandwidth requirements of 10 bit UHD.
Hi, interestingly, I have now received a reply to my question from B&O support. They say ‘it is not possible with Beovision Eclipse since the HDMI 2.0 input does not support UHD 10 bit at full colour sub-sampling 4:4:4 above 30 FPS, in other words, the TV does not support 4K 60Hz 10 bit input’
thorne: Hi, interestingly, I have now received a reply to my question from B&O support. They say ‘it is not possible with Beovision Eclipse since the HDMI 2.0 input does not support UHD 10 bit at full colour sub-sampling 4:4:4 above 30 FPS, in other words, the TV does not support 4K 60Hz 10 bit input’
But colour sub-sampling of 4:2:2 and 4:2:0 must be supported. Most, if not all, 4K HDR streams are encoded using HEVC 10 bits, 4:2:0 sub-sampling. Youtube HDR material is encoded at 4:2:0 using the VP9 codec . So colour sub-sampling of 4:4:4 is definitively not needed for now. So set the box to 4:2:0 and you will be fine.
Regards,
Jean
Sounds good, but how do I set the box to 4:2:0? I can’t see how to do it
Oh sorry, I thought mentioning the Eclipse and sky q box would have made it clear
Any idea how I can set the box to 30hz? I cannot see how to change the setting. If possible, this seems like a good solution
Hi Thorne,
Are you in the UK? I'm basing my answers on UK Sky Q boxes, but I know sky Q is available in some other countries and I don't know what differences (if any) there are.
Whilst B&O's response about 4:4:4 10bit @ 60Hz not being supported is correct - Sky Q boxes, at least those in the UK, output in 8 or 10 bit 4:2:0 which is supported.
Please advise whether you are using the sky supplied HDMI cable, or an alternative cable, and if the latter, how long it is and whether it is premium certified. Also, as already suggested, please try connecting direct to the panel to see if this works, as it really isn't possible to advise further until this information has been gathered.
Kind regards,
Hi Martin. Yes, I am in the U.K. Your response has provided me with the likely reason for my issue. I cannot connect the box direct to the panel because the TV is wall mounted and all the cabling is hidden in the wall. Because of the fact the TV is wall mounted, the HDMI cable is much longer than 2 meters, so I reckon that could be the reason. It is not the sky supplied one because that was way too short, but it is premium certified
Guess I’ll gave to content myself with 8 bit
Thanks for your helpful answer
If the cable used is premium certified, there really shouldn't be an issue - I often use 5m premium certified cables for wall mount installations - much longer than this and you usually have to resort to fibre optics.
Of course a faulty or damaged cable cannot be ruled out, and that's going to be a pain if it is chased into a wall.
If the TV is on the hinged wall bracket, you should find there is enough cable length to try it temporarily in one of the sockets on the screen, but this probably will feeding it back out from the soundcentre and any sock it is enclosed in.
Martin,
So are you saying you have successfully wall mounted Eclipses connected to sky boxes with UHD 10 bit, using very long cables?