LG 34wk95u 5120x2160

Squid Vicious · 11 Jul 2018 at 16:44

Quartz said:
Whoever wrote the tech specs page for that should be shot. Most obviously it doesn't say which versions of HDMI or Displayport are supported. And there's no Freesync or Gsync support.

Yeah - utterly annoying and unfortunately it's not uncommon with other manufacturer either - sometimes it's nigh on impossible to get detailed info on interface specs, even the final support manuals sometimes exclude it... :mad:

Daniel - LG · 12 Jul 2018 at 14:24

Pricing on that link is about right - I am expecting MSRP £,1499.99 INC VAT in the UK

Quartz · 12 Jul 2018 at 15:41

Daniel - LG said:
Pricing on that link is about right - I am expecting MSRP £,1499.99 INC VAT in the UK

Can you please advise which versions of HDMI and Displayport are supported, and if it's HDMI 2.1, is Variable Rate Refresh supported?

Daniel - LG · 12 Jul 2018 at 15:43

I will ask the questions

drecc · 15 Jul 2018 at 23:07

@Daniel - LG Please could you ask if the LG-34WK95U will support brightness/contrast adjustments over Thunderbolt 3 from a Mac, the same way that the LG Ultrafine 5K monitor does?

This looks like a very important feature, because without it the new MacBook Pro 2018's True Tone display feature will not work, because it would not be able to adjust the settings on the LG-34WK95U. (True Tone uses the ambient light sensor on the MacBook Pro to figure out the best colour temperature/brightness/contrast settings for the monitor, so that it is easier on the eyes depending on your room's lighting).

Thank you!

Vega · 16 Jul 2018 at 03:03

This monitor could be pretty amazing if it could do 80-100 Hz over DP 1.4. 60 Hz just doesn't cut it anymore, even as a professional display.

Iroel · 20 Jul 2018 at 10:01

It seems that the support of DP 1.4 is confirmed ...

https://www.lg.com/us/monitors/lg-34WK95U-W-ultrawide-monitor

#ask & answer section

The DisplayPort on the LG 34" Class 21:9 UltraWide® 5K2K Nano IPS LED Monitor with HDR 600 (34" Diagonal), Model # 34WK95U-W will be version 1.4 so it will support 5K (5120 x 2880) resolutions.

Vega · 21 Jul 2018 at 05:05

Ya but this monitor is running only 60 Hz, even though DP 1.4 can handle much more. DP 1.4 can do 120 Hz 4K. This monitor has 33% more pixels. Doing the math, that means DP 1.4 has the capability at a minimum to run 5120x2160 at 90 Hz. That would be epic!

Howling · 21 Jul 2018 at 10:21

If this was 40"+ and 100hz+ it'd be my next buy

Quartz · 21 Jul 2018 at 12:22

Vega said:
DP 1.4 can do 120 Hz 4K.

Actually, the recent Asus and Acer high-refresh 4K monitors show that DP 1.4 can't do 120 Hz 4K. They start to lose precision at 96 Hz. They need the bandwidth of HDMI 2.1 for full 120 Hz 4k. And this monitor is 5K. Dell require two DP 1.4 cables for their 8K monitor.

drecc · 22 Jul 2018 at 00:51

drecc said:
Please could you ask if the LG-34WK95U will support brightness/contrast adjustments over Thunderbolt 3 from a Mac, the same way that the LG Ultrafine 5K monitor does?

@Daniel - LG Just to clarify, I'm aware that the LG-34WK95U supports DDC/CI brightness adjustments, but my research so far has found that this is not the mechanism that Macs need to use to talk to monitors.

Please could you therefore directly ask this question to LG: "Does the LG-34WK95U support Apple True Tone?"

Btw the True Tone support doc is here: https://support.apple.com/en-us/HT208909

Thanks again!

Vega · 22 Jul 2018 at 07:45

Quartz said:
Actually, the recent Asus and Acer high-refresh 4K monitors show that DP 1.4 can't do 120 Hz 4K. They start to lose precision at 96 Hz. They need the bandwidth of HDMI 2.1 for full 120 Hz 4k. And this monitor is 5K. Dell require two DP 1.4 cables for their 8K monitor.

Incorrect. Some seriously horrid reporting spread this nonsense around. DP 1.4 can and does on the X27 I own run 120 Hz 4K RGB Full, 8-bit color.

SupraWez · 22 Jul 2018 at 08:35

This could be good.

Quartz · 22 Jul 2018 at 08:53

Vega said:
Incorrect. Some seriously horrid reporting spread this nonsense around. DP 1.4 can and does on the X27 I own run 120 Hz 4K RGB Full, 8-bit color.

Ah, but the monitor is 10 bit HDR, not 8 bit SDR.

Vega · 23 Jul 2018 at 06:06

The panel is 8-Bit+FRC. Sending it a 10-bit signal doesn't gain you anything as it dithers it anyway so the point is moot. Hardly any computer monitors are true 10-bit, let alone gaming monitors.

Quartz · 23 Jul 2018 at 11:30

So your monitor will do 8 bit plus HDR at 120 Hz without image degradation?

Vega · 23 Jul 2018 at 16:17

Yes, I can't tell the difference in A-B comparison. Haven't heard of anyone with one saying there is a difference.

For this monitor, 5120x2160 at 90 Hz RGB 8-bit would be amazing.

mikeparkie · 5 Aug 2018 at 11:29

Hey @Daniel - LG
How's that UK release date looking? anything more definitive yet?

vasam · 15 Aug 2018 at 18:45

Do we already know how the USB upstream will work?
The monitor has both USB-B (which I believe is confirmed to be the USB upstream) and Thunderbolt 3 (primarily for A/V and charging but technically could transmit other data too). Do both of them work as upstream? If so, that means the monitor kinda works like a KVM switch (similarly to some Dell monitors)?

NZXT30 · 21 Aug 2018 at 13:14

Can't help but notice that this resolution would be more suited to a 38" ultrawide.