Windows 11 Display Resolution Changing

[chippy348]

Need a bit of help,

I have been running a Samsung 34" wide screen for the last few years on my windows 11 small from Dell PC, used this in PBP IE 2 screens all good.

Setup was 2 display ports on the graphic card to 2 HDIM into monitor.

For reasons the monitor and all cables were removed and used on a different PC.

I then purchased this

https://www.ebuyer.com/914599-philips-345b1c-34-va...

also with new display to HDMI leads.

I cannot get the 2 windows to fill up the entire screen, I get the full width but have quite a big band top and bottom. Playing around we get the message flash up “change resolution to 1720x1440 for full screen”

Here is the issue in the setting on windows there is no option to change to 1720x1440 no matter what I do in setting advanced settings etc I cannot change to the required res.

Any pointers

[GregK2]

Have you seen this? Might be worth checking Intel HD control panel or depending on your graphics setup equivalent
https://www.reddit.com/r/ultrawidemasterrace/comme...

[xeny]

Exactly which PC model is it, and which original Samsung?

When you say PBP, you were running two HDMI cables from the PC to the screen and the PC thought it had two separate screens attached, each half the width of the physical screen?

[chippy348]

xeny said:

Exactly which PC model is it, and which original Samsung?

When you say PBP, you were running two HDMI cables from the PC to the screen and the PC thought it had two separate screens attached, each half the width of the physical screen?

The PC is a Dell Optiplex PC 5050 PC i5 Quad Core 64GB Ram + SSD & Windows 11 Pro

The Samsung monitor is SAMSUNG LS34J550 > https://business.currys.co.uk/catalogue/computing/...

The setup is the Dell has 2 display ports the Samsung has 2 HDIM ports, so I used display to HDIM cables.

And yes the screen is split down the middle 2 equal screens as you say “each half the width of the physical screen”

[donkmeister]

Is there a reason you aren't just running a single displayport cable?

[chippy348]

donkmeister said:

Is there a reason you aren't just running a single displayport cable?

Because to have 2 monitors "LH + RH" effectively in the same monitor so you need 2 cables

[GregK2]

So the link I gave describing the exact same issue on the exact same monitor was no use then? It's not the active signal resolution that can be fixed with scaling?

[chippy348]

GregK2 said:

So the link I gave describing the exact same issue on the exact same monitor was no use then? It's not the active signal resolution that can be fixed with scaling?

Sorry forgot to reply, i had seen that via a google search, with our graphics card we dont have the option change this, even under the "List All Modes" in the advanced setup there is not a 1720x1440 option to change to

[GregK2]

But did you look at the intel hd graphics control panel for scaling options? It looks like you have integrated graphics with an intel CPU?

[biggiles]

Had a similar issue in the past - was caused by Windows updating the drivers. Had a nightmare trying to manually install different drivers to get it back to working. Eventually fixed it.

Have you had any drivers/updates recently? Hopefully you can cross this off as a cause/contributor.

[xeny]

chippy348 said:

Because to have 2 monitors "LH + RH" effectively in the same monitor so you need 2 cables

I think the unspoken question was "why do you want this?" rather than one large monitor you can arrange things on as you desire?