Welcome to our peer-to-peer forums, where owners help owners. Need help now? Visit eSupport here.

English Community

ThinkPad NotebooksThinkPad: X Series Laptops
All Forum Topics
Options

218 Posts

04-24-2018

United Kingdom of Great Britain and Northern Ireland

258 Signins

2087 Page Views

  • Posts: 218
  • Registered: ‎04-24-2018
  • Location: United Kingdom of Great Britain and Northern Ireland
  • Views: 2087
  • Message 11 of 35

Re: X1 6 gen HDR - Is the panel 8 bit (reported by EDID) or 12 bit (required by Dolby Vision)?

2018-05-07, 13:45 PM

I would also suggest that this laptop doesn't support HDR 10, which is why Windows doesn't allow you to enable HDR. It only supports Dolby Vision, which Windows 10 doesn't (to display OS related stuff). We need to look for video playback software that will allow us to play 4K UHD Dolby Vision media that will work with this screen. I hope Lenovo's support will be able to point us to them.

Lenovo ThinkPad X1 Carbon (6th Gen), ASUS PG27UQ Quantum Dot UHD 4K HDR 144 Hz Monitor
Reply
Options

97 Posts

03-01-2018

United States of America

139 Signins

895 Page Views

  • Posts: 97
  • Registered: ‎03-01-2018
  • Location: United States of America
  • Views: 895
  • Message 12 of 35

Re: X1 6 gen HDR - Is the panel 8 bit (reported by EDID) or 12 bit (required by Dolby Vision)?

2018-05-07, 15:10 PM

I would also suggest that this laptop doesn't support HDR 10, which is why Windows doesn't allow you to enable HDR. It only supports Dolby Vision, which Windows 10 doesn't (to display OS related stuff).

 

Note that Lenovo's own announcement about the laptop said that HDR support would be enabled in a future Windows update, which is hightly suggestive that native Windows support should be expected.

Reply
Options

218 Posts

04-24-2018

United Kingdom of Great Britain and Northern Ireland

258 Signins

2087 Page Views

  • Posts: 218
  • Registered: ‎04-24-2018
  • Location: United Kingdom of Great Britain and Northern Ireland
  • Views: 2087
  • Message 13 of 35

Re: X1 6 gen HDR - Is the panel 8 bit (reported by EDID) or 12 bit (required by Dolby Vision)?

2018-05-07, 15:19 PM

HDR or HDR 10? I hope it's the latter because Dolby Vision is the other form of HDR but Windows and games only supports HDR 10.

 

https://www.theverge.com/2018/1/8/16862126/lenovo-x1-carbon-yoga-alexa-dolby-vision-hdr 

 

"Lenovo isn’t saying anything about the possibility of HDR10 support."

Lenovo ThinkPad X1 Carbon (6th Gen), ASUS PG27UQ Quantum Dot UHD 4K HDR 144 Hz Monitor
Reply
Options

218 Posts

04-24-2018

United Kingdom of Great Britain and Northern Ireland

258 Signins

2087 Page Views

  • Posts: 218
  • Registered: ‎04-24-2018
  • Location: United Kingdom of Great Britain and Northern Ireland
  • Views: 2087
  • Message 14 of 35

Re: X1 6 gen HDR - Is the panel 8 bit (reported by EDID) or 12 bit (required by Dolby Vision)?

2018-05-07, 15:32 PM

trackpointlove:

 

What software did you use to get the EDID information?

 

 

Thanks.

Lenovo ThinkPad X1 Carbon (6th Gen), ASUS PG27UQ Quantum Dot UHD 4K HDR 144 Hz Monitor
Reply
Options

7 Posts

04-26-2018

Australia

7 Signins

120 Page Views

  • Posts: 7
  • Registered: ‎04-26-2018
  • Location: Australia
  • Views: 120
  • Message 15 of 35

Re: X1 6 gen HDR - Is the panel 8 bit (reported by EDID) or 12 bit (required by Dolby Vision)?

2018-05-11, 6:12 AM

 

Update: I've got the answer from Lenovo support, pasted below, verbatim:

 

  1. Dolby Vision requires at least 10 bits panel for it to work.
  2. Some Lenovo X1 Carbon 6 Gen originally comes together with 14" HDR WQHD IPS with Dolby Vision™ (2560 x 1440), Glare, 500 nits that support Dolby Vision, however the panel that comes together with the machine is only 8 bit.
  3. X1 Carbon 6 Gen that supports Dolby Vision will come with a future software updates which added support for Dolby Vision.

And then they refer to this forum post that I opened myself and the other post for the yoga, and also include a link to the new INF driver, which may have ICC profiles for the screen (there we no profiles in previous ones).

It's good that now we have a predefined ICC profile (haven't confirmed yet), but from what I understand, this is not the hardware as advertised.

Reply
Options

218 Posts

04-24-2018

United Kingdom of Great Britain and Northern Ireland

258 Signins

2087 Page Views

  • Posts: 218
  • Registered: ‎04-24-2018
  • Location: United Kingdom of Great Britain and Northern Ireland
  • Views: 2087
  • Message 16 of 35

Re: X1 6 gen HDR - Is the panel 8 bit (reported by EDID) or 12 bit (required by Dolby Vision)?

2018-05-11, 6:18 AM
  1. Dolby Vision requires at least 10 bits panel for it to work.
  2. Some Lenovo X1 Carbon 6 Gen originally .... the panel that comes together with the machine is only 8 bit.

 

What are they doing??? So how would these users be able to use DV?

Lenovo ThinkPad X1 Carbon (6th Gen), ASUS PG27UQ Quantum Dot UHD 4K HDR 144 Hz Monitor
Reply
Options

7 Posts

04-26-2018

Australia

7 Signins

120 Page Views

  • Posts: 7
  • Registered: ‎04-26-2018
  • Location: Australia
  • Views: 120
  • Message 17 of 35

Re: X1 6 gen HDR - Is the panel 8 bit (reported by EDID) or 12 bit (required by Dolby Vision)?

2018-05-11, 6:58 AM

> What software did you use to get the EDID information?

 

I used linux utilities get-edid to extract it and and edid-decode to analyze it and provide the information, but I just found this windows utility that should do the same:

 

http://www.nirsoft.net/utils/dump_edid.html

Reply
Options

218 Posts

04-24-2018

United Kingdom of Great Britain and Northern Ireland

258 Signins

2087 Page Views

  • Posts: 218
  • Registered: ‎04-24-2018
  • Location: United Kingdom of Great Britain and Northern Ireland
  • Views: 2087
  • Message 18 of 35

Re: X1 6 gen HDR - Is the panel 8 bit (reported by EDID) or 12 bit (required by Dolby Vision)?

2018-05-11, 8:10 AM

Ahh Linux OK thanks.

But no don’t use the one on Nirsoft as it is very basic. Use this free Monitor Asset Manager tool instead:

 

https://www.entechtaiwan.com/util/moninfo.shtm

 

This is very powerful.

Lenovo ThinkPad X1 Carbon (6th Gen), ASUS PG27UQ Quantum Dot UHD 4K HDR 144 Hz Monitor
Reply
Options

42 Posts

03-23-2018

United Kingdom of Great Britain and Northern Ireland

96 Signins

517 Page Views

  • Posts: 42
  • Registered: ‎03-23-2018
  • Location: United Kingdom of Great Britain and Northern Ireland
  • Views: 517
  • Message 19 of 35

Re: X1 6 gen HDR - Is the panel 8 bit (reported by EDID) or 12 bit (required by Dolby Vision)?

2018-05-11, 8:31 AM

Can someone explain how Lenovo can take an 8-bit panel and "update" it to 10-bit via a software update? Sounds like B.S. to me. 

Reply
Options

218 Posts

04-24-2018

United Kingdom of Great Britain and Northern Ireland

258 Signins

2087 Page Views

  • Posts: 218
  • Registered: ‎04-24-2018
  • Location: United Kingdom of Great Britain and Northern Ireland
  • Views: 2087
  • Message 20 of 35

Re: X1 6 gen HDR - Is the panel 8 bit (reported by EDID) or 12 bit (required by Dolby Vision)?

2018-05-11, 8:51 AM

Possible if the firmware resides on the LCD scaler board. I believe the difference in bit depth is on the ASIC scaler that drives the panel. The panels themselves should be identical.

 

With things like brightness, contrast etc then the panels must be changed.

 

I could be wrong though.

Lenovo ThinkPad X1 Carbon (6th Gen), ASUS PG27UQ Quantum Dot UHD 4K HDR 144 Hz Monitor
Reply
Forum Home

Community Guidelines

Please review our Guidelines before posting.

Learn More

Check out current deals!

Go Shop
X

Save

X

Delete

X

No, I don’t want to share ideas Yes, I agree to these terms