Question 3rd monitor will not disappear when hdmi is switch to other pc.

catfishhoward

Distinguished
Jun 13, 2017
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I recently bought a 51RISC Radeon RX 590 GME. I have 3 monitors hooked up to my primary PC windows 7 and one of those monitor is hooked up to a HDMI switch to change that one monitor over to my secondary window xp. The last card I had VisionTek Radeon 7750 worked great, when I changed the monitor switch the 3rd monitor would disappear from my window 7. However now with the RX 590 that 3rd monitor stays and changes to a Generic Non-PnP Monitor and sometimes when I open a folder it appears on that screen which I cant see because of my winodw xp on it.

How do I get that 3rd monitor to disappear when I switch the hdmi and reappear when I switch it back to the windows 7?

Radeon R 590 driver download: (radeon-software-adrenalin-2020-21.5.2-win7-64bit-may21)
HDMI Switch: HDMI 2.1 8K Switch Directional 2in 1out with Remote Control 8K@60Hz 4K@120Hz Converter High Speed 48Gbps Compatible with Xbox PS5 Projectors Monitors
Main Desktop: Window 7 Professional SP 1, AMD FX(tm)-8350 8 core 4 GHz, 64 bit, 16 GB ram.
2nd Desktop: Window XP Professional SP2, AMD FX(tm)-6300 6 core 3.52 GHz, 32 bit, 3.25 GB ram.
I also use Mouse Without Borders.

https://drive.google.com/drive/folders/1MpG4fniTaNoBf31mxpNQ3iXwqN6ObZyh?usp=sharing
 

Ralston18

Titan
Moderator
I am not one to challenge or question end user's choices of Operating Systems, etc..

However, that said, hardware and software manufacturers will sooner or later stop supporting obsolete hardware, OS's, and applications.

The time span for support is bottom line based: meaning once there is no more profit in supporting "whatever" then support will be dropped/discontinued.

You may or may not find some immediate solution.

But that solution will eventually become no longer viable.

Start planning ahead and consider other options. No matter how much Windows 7 and XP are favored.
 

catfishhoward

Distinguished
Jun 13, 2017
131
2
18,695
I am not one to challenge or question end user's choices of Operating Systems, etc..

However, that said, hardware and software manufacturers will sooner or later stop supporting obsolete hardware, OS's, and applications.

The time span for support is bottom line based: meaning once there is no more profit in supporting "whatever" then support will be dropped/discontinued.

You may or may not find some immediate solution.

But that solution will eventually become no longer viable.

Start planning ahead and consider other options. No matter how much Windows 7 and XP are favored.
These PC are set up just to use for an engineer program I have that will only run on XP-32 bit so upgrade or VM is not an option. If this is because of drives being updated for newer windows programs should I look for a older download driver for the 51RISC Radeon RX 590 GME? That would take the age of OS out of question if this was your meaning in your responce.

Is it common for anyone else when using a HDMI switch that when you switch screens it show up as Generic Non-PnP Monitor and doesn't disapper?

If it come down to it I will go back to the VisionTek Radeon 7750 but just didn't know if I was missing a setting for the RX 590 or if the RX 590 will always show up as Generic Non-PnP.
 

Ralston18

Titan
Moderator
There are "layers" involved.

As a starting point, the engineer program (code) is written to provide only certain resolutions and colors, etc..

With the OS being XP-32 the available functionality is likely very limited. In other words, if the program only provides certain resolutions etc. then that is all you can get.

The next layer is drivers. Much the same: if the GPU (via its' drivers) only supports certain resolutions, colors, etc. that is all you can get.

Lastly the monitor: It may have a wide range of resolutions but cannot really improve on the resolutions. And some monitors have their own drivers as well.

Components/devices generally have ( but not always) backwards compatibility. Meaning they will support older standards. But not automatically"upgrade" to some newer standard even if the incoming data is a newer standard.

What devices do then is fall back on what they can find. If there is no specific driver available or that driver is not workable then the fall back is going to be some Generic-PNP that provides some level of functionality.

Not all of the functions and features may be available.

Within the OS: remember that the OS(s) will support certain Projection options (PC screen only, Extended, Duplicate, Second screen only) via WIN + P keys. Or options within the GPU's Control Panel menus.

And older driver may indeed work-perhaps only because it's output is supported by the next layer. A newer version may have simply dropped support for aging hardware and software.

Unfortunately, it may require some trial and error approach to find a combination of layers to make it all work.

If that is at all possible. The best that can done is the lowest level of functionality that all components can support.

Which may simply end up being 2 monitors vs 3 monitors.

Hopefully someone may know of or determine a way to make it work with respect to your working environment and requirements.

And post accordingly.