Buying a new monitor - wiil I be able to drive 240 Hz@1440p ultrawide?

[Veseleil]

I'm glad you've sorted it out, enjoy your upgrade.

And now I'm thinking, my TV should support 10-bit at 144Hz (as it's still under 48Gb/s), so it's either a cost cutting at the TV side (most likely), or it's a low quality cable that can't keep up, so the output drops to 8-bit...
The thing is, I'm kinda lazy to go back to this to try finding out:

https://www.avforums.com/threads/tcl-c805-4k-qled-mini-led-tv-discussion-help-experiences.2474425/page-184

And I'm certainly not going to waste money on an expensive HDMI cable just to make sure. Damn.

 

[Thimblewad]

I'm glad you sorted it out, enjoy your upgrade.

And now I'm thinking, my TV should support 10-bit at 144Hz (as it's still under 48Gb/s), so it's ether a cost cutting at the TV side (most likely), or it's a low quality cable that can't keep up, so the output drops to 8-bit...
The thing is, I'm kinda lazy to go back to this to try finding out:

https://www.avforums.com/threads/tcl-c805-4k-qled-mini-led-tv-discussion-help-experiences.2474425/page-184

And I'm certainly not going to waste money on an expensive HDMI cable just to make sure. Damn.

Same is happening to me. If I try anything more than 8-bit on the TV, it just jumps back to 8. I'm suspecting it's the cable but I already spent like 35€ for it (I need an 8 metre cable) so I'm not buying another one (it would cost over 50€)

 

[Veseleil]

Same is happening to me. If I try anything more than 8-bit on the TV, it just jumps back to 8. I'm suspecting it's the cable but I already spent like 35€ for it (I need an 8 metre cable) so I'm not buying another one (it would cost over 50€)

You know what else sucks about HDMI? The GPU always treats it as a secondary display output, and all of 3 DPs as a primary. So for example, I can't run main Spintires window on a TV, and have a map on a DP connected monitor... Because the game is coded to always run on a primary display. A lot of weird stuff happen, and no spintiresplus magic can make it right.

 

[TheLostSwede]

12 bpc as per Adrenalin and Windows. HDR doesn't seem to be available tho.

With most "cheap" monitors, you need to manually enable HDR on both the display and in Windows for it to work.
Check your monitor menu for an HDR setting, then enable it in Windows and it should work fine.
In theory, you should just have to enable it in Windows and the monitor should switch mode, but it doesn't seem to work on a lot of HDR capable monitors.
LG clams your model should work that, so maybe just try toggling it on in the display settings?

 

[Thimblewad]

With most "cheap" monitors, you need to manually enable HDR on both the display and in Windows for it to work.
Check your monitor menu for an HDR setting, then enable it in Windows and it should work fine.
In theory, you should just have to enable it in Windows and the monitor should switch mode, but it doesn't seem to work on a lot of HDR capable monitors.
LG clams your model should work that, so maybe just try toggling it on in the display settings?

There's no option to toggle HDR in the display settings. My LG TV also supports HDR and I can't enable it, so maybe there's a compatibility issue with AMD/Windows.

 

[TheLostSwede]

There's no option to toggle HDR in the display settings. My LG TV also supports HDR and I can't enable it, so maybe there's a compatibility issue with AMD/Windows.

And this setting in the display settings in Windows does nothing?

If I enable that, my screen goes really weird, unless I enable the HDR settings in my monitor at the same time.

 

[Thimblewad]

And this setting the display settings in Windows does nothing?

If I enable that, my screen goes really weird, unless I enable the HDR settings in my monitor at the same time.

This is my "HD color" menu. Or maybe I can't find the thing you're showing me, but I'm pretty sure this is it

 

[TheLostSwede]

This is my "HD color" menu. Or maybe I can't find the thing you're showing me, but I'm pretty sure this is it
View attachment 390939

Hmmm, weird, you really don't have an option to turn on HDR...
Time to contact LG support?

 

[Thimblewad]

Hmmm, weird, you really don't have an option to turn on HDR...
Time to contact LG support?

I was actually able to find an "HDR effect" mode in the monitor OSD, but even enabling it, disabling VRR and everything else doesn't give me the option to enable HDR in Windows.
Nevertheless, I've noticed that DAS (Dynamic Action Sync) is forced off when using the HDR effect option and I'd much rather have faster response times than HDR. It's also only HDR Pure Black 400 so it's nothing special and I don't really care, because the colors and everything looks amazing as is. Thanks for the help anyways!

 

[TheLostSwede]

I was actually able to find an "HDR effect" mode in the monitor OSD, but even enabling it, disabling VRR and everything else doesn't give me the option to enable HDR in Windows.
Nevertheless, I've noticed that DAS (Dynamic Action Sync) is forced off when using the HDR effect option and I'd much rather have faster response times than HDR. It's also only HDR Pure Black 400 so it's nothing special and I don't really care, because the colors and everything looks amazing as is. Thanks for the help anyways!

Ok, DisplayHDR True Black 400 and DisplayHDR 400 are not the same, don't confuse the two. The first is only for OLED displays, the second is meh.

Your monitor should support it and you really ought to contact LG's support about it, as something is very wrong.

 

[Thimblewad]

Ok, DisplayHDR True Black 400 and DisplayHDR 400 are not the same, don't confuse the two. The first is only for OLED displays, the second is meh.

Your monitor should support it and you really ought to contact LG's support about it, as something is very wrong.

I have found something very peculiar. Windows HDR doesn't work, but I just bought the Mass Effect Legendary trilogy on discount and the picture seemed way too bright for some reason. Lo-and-behold, when I opened my monitor's OSD, HDR is enabled. And yes, it looks insane DAS is also working while using HDR.

I also noticed the same issue while playing Battlefield 1, but I wasn't really paying attention. Alt+Tabbing seemed to fix the overbrightness there and I didn't think anything of it.

TL;DR, HDR is indeed working and looks great, but only in specific (EA?) games. Windows says HDR is not supported.

 

[Chomiq]

Windows being windows, have you tried win+alt+b - that should toggle the HDR mode manually.

Either way, you should only use it in games that actually support HDR output and have toggle for it.

I was hoping there is driver available but LG support only shows software downloads, might wanna give it a try:

LG 34GS95QE-B.AUS<!-- -->: Support, Manuals, Warranty & More | LG USA Product Support Page

Get product support, user manuals and software drivers for the LG 34GS95QE-B.AUS. View LG 34GS95QE-B.AUS warranty information & schedule repair service.

www.lg.com

 

[Thimblewad]

Windows being windows, have you tried win+alt+b - that should toggle the HDR mode manually.

Either way, you should only use it in games that actually support HDR output and have toggle for it.

I was hoping there is driver available but LG support only shows software downloads, might wanna give it a try:

LG 34GS95QE-B.AUS<!-- -->: Support, Manuals, Warranty & More | LG USA Product Support Page

Get product support, user manuals and software drivers for the LG 34GS95QE-B.AUS. View LG 34GS95QE-B.AUS warranty information & schedule repair service.

www.lg.com

Never knew this key combo existed. Well, I get a beautiful notification from "GameBar", that my display doesn't support HDR
It's confirmed to work in Mass Effect and Battlefield 1, will test some more.

 

[Chomiq]

With most "cheap" monitors, you need to manually enable HDR on both the display and in Windows for it to work.

On my LG display you won't see the HDR setting unless you feed the monitor an HDR signal. Then it detects HDR being enabled on the source and automatically enables the HDR mode on the monitor, disabling some of the SDR only modes.

HDR Effect mentioned by OP is the mode that's visible only if you're feeding the monitor SDR signal.

Never knew this key combo existed. Well, I get a beautiful notification from "GameBar", that my display doesn't support HDR
It's confirmed to work in Mass Effect and Battlefield 1, will test some more.
View attachment 391888

Are GPU drivers up to date?

 

[Thimblewad]

On my LG display you won't see the HDR setting unless you feed the monitor an HDR signal. Then it detects HDR being enabled on the source and automatically enables the HDR mode on the monitor, disabling some of the SDR only modes.
HDR Effect mentioned by OP is the mode that's visible only if you're feeding the monitor SDR signal.

Can confirm, I had this on my previous LG monitor. Never used it because it looked shite.

Are GPU drivers up to date?

Yep, I'm one of those people who install the newest drivers and updates as soon as they come out 25.3.2 beta, working perfectly.

 

[Chomiq]

Can confirm, I had this on my previous LG monitor. Never used it because it looked shite.


Yep, I'm one of those people who install the newest drivers and updates as soon as they come out 25.3.2 beta, working perfectly.

Quick google:

Re: HDR not supported

Update: According to driver release notes of 22.7.1 and 22.8.1, 10 Bit Per Pixel format in graphics settings no longer supports HDR. AMD Software: Adrenalin Edition 22.8.1 Release Notes | AMD AMD Software: Adrenalin Edition 22.7.1 Release Notes | AMD

community.amd.com

Have you tried this?

Link to TPU post from another person:

HDR Not supported - But my monitor does support it

Hi guys, I am having an issue with turning on HDR from windows display settings. I have recently just upgraded to Windows 11 and have noticed that HDR is completely greyed out and it just says that it isn't supported but it is! It worked on Windows 10 just fine. Does anyone have any...

www.techpowerup.com

Mentions same setting.

 

[Thimblewad]

Quick google:

Re: HDR not supported

Update: According to driver release notes of 22.7.1 and 22.8.1, 10 Bit Per Pixel format in graphics settings no longer supports HDR. AMD Software: Adrenalin Edition 22.8.1 Release Notes | AMD AMD Software: Adrenalin Edition 22.7.1 Release Notes | AMD

community.amd.com

Have you tried this?

Link to TPU post from another person:

HDR Not supported - But my monitor does support it

Hi guys, I am having an issue with turning on HDR from windows display settings. I have recently just upgraded to Windows 11 and have noticed that HDR is completely greyed out and it just says that it isn't supported but it is! It worked on Windows 10 just fine. Does anyone have any...

www.techpowerup.com

Mentions same setting.

I'm such a bot... It clearly says it on the toggle...

Will try it out right now.

Edit: It's working now
Is it okay to use "Auto HDR"?

 

[Chomiq]

I'm such a bot... It clearly says it on the toggle...
View attachment 391893
Will try it out right now.

Edit: It's working now
Is it okay to use "Auto HDR"?

Auto HDR is fake HDR (I mean, it tries to auto tone map unsupported SDR games to HDR). Leave it off (or try and find out).

 

[Thimblewad]

Auto HDR is fake HDR (I mean, it tries to auto tone map unsupported SDR games to HDR). Leave it off (or try and find out).

I've tried it in CS and it makes all the highlights really pop.

But in general, I have a feeling that I'm getting a much softer image using HDR compared to SDR in games(maybe Radeon Sharpening is not working properly with it?).
Screw those highlights, I wanna se the details

 

[TheLostSwede]

I'm such a bot... It clearly says it on the toggle...
View attachment 391893
Will try it out right now.

Edit: It's working now
Is it okay to use "Auto HDR"?
View attachment 391895

Odd though, as I can enable 10-bit and HDR is still an option I can turn on...
That said, my monitor is technically 8-bit + FRC.

 

[Thimblewad]

Odd though, as I can enable 10-bit and HDR is still an option I can turn on...
That said, my monitor is technically 8-bit + FRC.

Using 10-bit color is not a problem. That stupid toggle from AMD is the problem. Ever since Adrenalin came out, I believed this toggle had to be on to be able to use 10-bit colors.
It sounds like it enables 10-bit color support in general, but that's not true. I can enable 10 or even 12-bit color with this toggle set to off.

It seems to only be for OpenGL apps. And that's also weird. If I'm playing some old OpenGL game I can't have HDR? Not that I care, just, why?