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LG 34UC88/34UC98/34UM88 Monitors Thread - Page 80

post #791 of 841
Im using the HDMI cable that came with the LG 34uc88 but Im only able tu get 30hz??? My laptop doesnt have a Display Port. Anybody here using the HDMI connection, able tu get 50 or 60hz?
post #792 of 841
Quote:
Originally Posted by Kokin View Post

LG 34CB88 is the consumer version of the 34UC88, so it does come with a 3 year warranty. As far as I know, the image retention hasn't been fixed, but it isn't an issue for most people. I rarely see it and have been using my 34UC88 for about 9-10 months now. The longest it's been visible is about 3-5 minutes and is barely noticeable (faint/ghostly lines on dark solid colors only).

If you have an AMD GPU and want 75Hz, I would still stick with the LG. Otherwise, if you don't care about 75Hz, the Dell is a good choice. Dell has way more ports if that's of any use to you, although it does seem to have a higher power consumption as well.

http://www.displayspecifications.com/en/comparison/cc2510c25

The 34CB88-P IS NOT a consumer version, it's a commercial display and you can only find it on LG's business website. It is basically the UC88 but with a 3-year warranty. Is there anything different between the UC88 and the CB88 except the warranty, no. It's the same panel, just marketed as a commercial display.

http://www.lg.com/us/business/commercial-display/it-products/desktop-monitors/lg-34CB88-P Notice the LG business solutions on the banner and the url
http://www.lg.com/us/monitors/lg-34UC88-B-ultrawide-monitor

I only got the CB version because it was offered on Massdrop for cheaper than the UC and had a 3-year warranty on top. It was cheaper and had a better warranty. Of course, I was going to get it over the UC model.
post #793 of 841
Quote:
Originally Posted by Kokin View Post

Ah looks like I mixed up the UC and CB. UC being the consumer version and CB being industrial. Since you're not looking to use the Freesync feature, the Dell is probably your best bet.

It took me about 4-5 months to decide which monitor to get, so you're not alone in choosing what is best for you. This one ticked all the marks since I came from a 1440p 120Hz monitor, but wanted a more aggressively curved Ultrawide while sticking to a higher refresh rate and staying below $750. I'd honestly want a 100Hz monitor like the Acer X34(p), but didn't think it was worth the price increase especially when a single GPU would be hard-pressed to drive that.

Good luck in your search thumb.gif

Sorry for last post, I see you figured it out smile.gif
post #794 of 841
Quote:
Originally Posted by PrefekStel View Post

Im using the HDMI cable that came with the LG 34uc88 but Im only able tu get 30hz??? My laptop doesnt have a Display Port. Anybody here using the HDMI connection, able tu get 50 or 60hz?

Your laptop probably isn't HDMI 2.0. I run this with display port but I have tested it over HDMI and you can achieve 3440x1440 at 60Hz ONLY with HDMI 2.0 spec. My guess is your laptop is HDMI 1.3 or 1.4 frown.gif

If not, check the display adapter properties in Windows and see if you can select the 60Hz option.
post #795 of 841
Quote:
Originally Posted by MrSnowmobiling View Post

Your laptop probably isn't HDMI 2.0. I run this with display port but I have tested it over HDMI and you can achieve 3440x1440 at 60Hz ONLY with HDMI 2.0 spec. My guess is your laptop is HDMI 1.3 or 1.4 frown.gif

If not, check the display adapter properties in Windows and see if you can select the 60Hz option.

Separate user, but this comment piques my interest. My laptop has HDMI 1.4, Mini Display Port 1.2, and USB Type-C (Thunderbolt). I'm planning on buying two of these monitors (and probably using the Display Port, and USB Type-C). However, does HDMI 1.4 really not do this monitor's resolution at 60Hz?

The spec says 4096×2160 at 24 Hz or 3840×2160 (Ultra HD) at 24 Hz/25 Hz/30 Hz.

But this monitor isn't as wide or tall in terms of resolution.

But then this mentions HDMI 1.4 doesn't even "support" 21:9 aspect ratio. Is that true? https://en.wikipedia.org/wiki/HDMI#Version_comparison

Supposedly it can do 2560x1440 at 144Hz, so I don't see why it couldn't push 3440x1440 at 60Hz.
post #796 of 841
Hi guys, I'm new to this club. The flat 34um88c is on my list now, but since i see this thread, I think again, i dont want those terrible bleeding monitor. Any recommendations, still prefer flat to curve
Thanks
post #797 of 841
Quote:
Originally Posted by Garconis View Post

Separate user, but this comment piques my interest. My laptop has HDMI 1.4, Mini Display Port 1.2, and USB Type-C (Thunderbolt). I'm planning on buying two of these monitors (and probably using the Display Port, and USB Type-C). However, does HDMI 1.4 really not do this monitor's resolution at 60Hz?

The spec says 4096×2160 at 24 Hz or 3840×2160 (Ultra HD) at 24 Hz/25 Hz/30 Hz.

But this monitor isn't as wide or tall in terms of resolution.

But then this mentions HDMI 1.4 doesn't even "support" 21:9 aspect ratio. Is that true? https://en.wikipedia.org/wiki/HDMI#Version_comparison

Supposedly it can do 2560x1440 at 144Hz, so I don't see why it couldn't push 3440x1440 at 60Hz.

Well HDMI 1.4 has a speed of 10Gbit/s. It can do 4k @ 30 Hz and setting up a simple proportion, 3440x1440 @ 30Hz should only require 3.69Gbit/s. 3440x1440 @ 60Hz should only need 7.38Gbit/s. This is within the HDMI 1.4 spec. It's roughly the same bandwidth of 2560x1440 at around 100Hz. HDMI 1.4 CANNOT do 2560x1440 @ even 120Hz as it requires 11.59Gbit/s.

I tried my old Dell Inspiron 5520 with HD 4000 graphics and it will do 3440x1440 @ 30Hz. (I cannot find an HDMI version anywhere on the web for my laptop, I am assuming its NOT HDMI 1.4 since it can't do 4K @ 30Hz) I created a custom resolution with CVT-RB timing mode and got 42Hz out of it connected to my 34CB88-P. I tried it on my LG 4k TV and 4k wasn't even selectable. This makes me believe my laptop is HDMI 1.3c.

HDMI 1.4 SHOULD be able to do 3440x1440 @ 60Hz if my math is correct and my crappy laptop WAS ABLE to display 3440x1440 at 30Hz. With reduced timings, I could do 42Hz. I feel this is totally possible now.
post #798 of 841
Thread Starter 
Quote:
Originally Posted by MrSnowmobiling View Post

Well HDMI 1.4 has a speed of 10Gbit/s. It can do 4k @ 30 Hz and setting up a simple proportion, 3440x1440 @ 30Hz should only require 3.69Gbit/s. 3440x1440 @ 60Hz should only need 7.38Gbit/s. This is within the HDMI 1.4 spec. It's roughly the same bandwidth of 2560x1440 at around 100Hz. HDMI 1.4 CANNOT do 2560x1440 @ even 120Hz as it requires 11.59Gbit/s.

I tried my old Dell Inspiron 5520 with HD 4000 graphics and it will do 3440x1440 @ 30Hz. (I cannot find an HDMI version anywhere on the web for my laptop, I am assuming its NOT HDMI 1.4 since it can't do 4K @ 30Hz) I created a custom resolution with CVT-RB timing mode and got 42Hz out of it connected to my 34CB88-P. I tried it on my LG 4k TV and 4k wasn't even selectable. This makes me believe my laptop is HDMI 1.3c.

HDMI 1.4 SHOULD be able to do 3440x1440 @ 60Hz if my math is correct and my crappy laptop WAS ABLE to display 3440x1440 at 30Hz. With reduced timings, I could do 42Hz. I feel this is totally possible now.

HDMI 1.4 does 3440x1440 at 50 Hz. I had few mobos with HDMI 1.4 and I used it when I was waiting for new GPUs. One mobo had DP and it did 60 Hz, so this was not iGPU limitation. I tried that with 3 different mobos and 2 different CPUs so I am quite confident that HDMI 1.4 should do 3440x1440@50Hz.
post #799 of 841

This is the best deal for the 34uc88, happy to get it smile.gif but now i'm worry about the image retention -,-
post #800 of 841
Thread Starter 
Quote:
Originally Posted by sonic2911 View Post


This is the best deal for the 34uc88, happy to get it smile.gif but now i'm worry about the image retention -,-

Just look on how it affects your experience, not whether it is there or not. This is very overblown issue for most cases, all depends on your use case. If games and movies are your primary use then there is nothing to worry about. No issue with things like video editing either. Only web browsing is affected.
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