Custom Ultrawide Resolution on AMD

[Julioau]

My screen physically has 2560x1080, however Philips in their infinite wisdom set a maximum HDMI EDID resolution to be 1920x1080.
My intention is to stretch 2560x1080 into an active signal of 1920x1080 using the GPU and then- in the TV settings, stretch it back so it fills the whole screen.

I've done this already on the Nvidia Control Panel and it worked, unfortunately I've been having issues replicating it on AMD Adrenalin. It always says my "display doesn't support this configuration", but I know for sure it does (as it's literally a 1080p signal).

All I want is to send a 1920x1080@60 signal to the TV, but render at 2560x1080@60. 

Am I doing something wrong?

P.S.: Also, I tried using CRU for the same result and it I also couldn't get it to work, I would really appreciate if someone more experienced with it could give me some pointers.

The furthest I could get was sending a 2560x1080 signal to the TV (despite AMD insisting it wouldn't work and not letting me create my custom resolution) -- The TV just renders the first 1920x1080 area and disregards the left 640x1080 pixels :/

 

[TetraSky]

Which TV/Monitor is this, exactly ? It makes no sense for it to not actually support the resolution it advertise as ... Could it be an issue of the HDMI cable simply being an older generation that doesn't support this resolution for some reason ? (though it would have to be super old at this point...). Or perhaps it outputs this resolution through Display Port only if it has that option ? (would need to know the model)

 

In any case, maybe what you're looking for is the Scaling option

 

Choose "Full Panel". It will stretch 1080p to fill up the entire screen. But this is not actually rendering at any more than 1080p. So images will be stretched out.

[Glenwing]

Are you using a DisplayPort to HDMI adapter or something? Cheap adapters are limited to 1920×1080 at 60 Hz.

[Julioau]

5 hours ago, TetraSky said:

Which TV/Monitor is this, exactly?

It's a Philips 50PFL8956D/78.

 

Quote

Could it be an issue of the HDMI cable simply being an older generation that doesn't support this resolution for some reason ?

I've already tried multiple cables and ports.

The TV has:

• 4 HDMI 1.4
• 1 VGA
• Component/Composite inputs.

Quote

Or perhaps it outputs this resolution through Display Port only if it has that option?

No DP on this model.
 

2 hours ago, Glenwing said:

Are you using a DisplayPort to HDMI adapter or something? Cheap adapters are limited to 1920×1080 at 60 Hz.

Also nope, just a normal HDMI to HDMI cable.

Searching through the manuals, here's what it states, unfortunately



Note the Panel Resolution and the Supported Display Resolutions...

What I want is, since the TV won't allow anything other than 1920x1080@60 input, to create a custom resolution on AMD Adrenalin that renders at 2560x1080, but scales it on the GPU to 1920x1080. (as the TV accepts that signal) and then, using the TV settings, to actually stretch that back.

 

This is how it's meant to be: (taken when I had the Nvidia GPU)

Note that it's spanning the full width of the screen and also not stretched-- yet, sending a stretched 1080p signal to the TV that is then being stretched again, back into a 1:1 ratio.

1920x1080 "Native" resolution for reference:


Every attempt at solving this on the AMD Software results in either an unusable signal for the TV or this mess: (note that it's actually 2560x1080, but cropped --you can't see the rightmost part of the taskbar, because it's "beyond" the useable area of the display

Quote

In any case, maybe what you're looking for is the Scaling option

 

Choose "Full Panel". It will stretch 1080p to fill up the entire screen. But this is not actually rendering at any more than 1080p. So images will be stretched out.

I already have "Full Panel" scaling enabled, but it doesn't seem to be working for resolutions ABOVE the signal input.

 

-- if I create 1920x810 (21:9-ish) resolution, it works, but isn't desirable as I am under the native resolution, and everything becomes extra pixelated (the pixel density is bad enough as it is).see (actual signal, stretched by the GPU):
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

raw 1920x810 signal:

 

and then stretched back by the TV:

See, I want this ^^^, except with a 2560x1080 signal, but I can't seem to create it, as every attempt results in this message:


--Also, thank you both for such quick replies!

[TetraSky]

Man, how weird that the display resolution is one thing, but only allows for a lower res for computers for some weird ass reason... What content other than a computer is even able of that resolution anyway.

 

You could potentially try CRU to see if it works for you

https://www.monitortests.com/forum/Thread-Custom-Resolution-Utility-CRU

I have not personally played around with it, but it might be something.

That thread could be a good place to get more help as well, as the developer still seems to be active on it as recently as 3 days ago.

[Julioau]

1 hour ago, TetraSky said:

What content other than a computer is even able of that resolution anyway

I've been able to load movies / pictures through USB that are the correct resolution and they actually display, but yeah it really sucks that they limited the inputs seemingly arbitrarily.
 

1 hour ago, TetraSky said:

That thread could be a good place to get more help as well, as the developer still seems to be active on it as recently as 3 days ago.

Thank you so much! I'll definitely look into it

-- I've been posting around different forums for the past two years and you're the first to reply at all! (Even on AMD's forums I was ignored  ), so thanks, once again!

-- -- I also tried using gamescope on linux, to set the render resolution to 2560x1080 and the actual window to be 1920x1080 and using the -S (stretch) flag, but, once again, couldn't achieve my desired result.

I really don't wanna buy an Nvidia GPU, but I also don't wanna buy a new monitor/TV, as this one is actually pretty feature-rich (I do own the 3D glasses for it and it works well on the games/emulators that support it :D)

[TetraSky]

2 hours ago, Julioau said:

I really don't wanna buy an Nvidia GPU, but I also don't wanna buy a new monitor/TV, as this one is actually pretty feature-rich (I do own the 3D glasses for it and it works well on the games/emulators that support it :D)

A new monitor/TV would definitely be cheaper than a Nvidia GPU these days at least (unless you go with the low end cards just for the feature you're looking for). You would be missing out on some features, such as 3D, though. But you'd get higher refresh rate. I found 3D movies to work quite nicely on a VR headset, if your TV ends up failing at one point.

 

2 hours ago, Julioau said:

-- I've been posting around different forums for the past two years and you're the first to reply at all! (Even on AMD's forums I was ignored  ), so thanks, once again!

That's rough... Unfortunately there's not much we can do other than recommend changing the TV or you going back to nvidia for your PC. AMD is certainly putting roadblocks in the way by preventing "unsupported" resolutions from working at all. Hopefully you find a way, either with CRU or something else.

 

You could technically always keep the TV for your 3D needs and simply get a newer modern one for your day to day stuff.