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XPS 8920, will not discover AMD Radeon RX 580
This is factory installed Radeon and it was working. Problem started when I tried to set up new dual monitors - both using display ports on Radeon. Dozens of frustrating attempts but monitors would not extend desktop. Would duplicate, but not extend. Updated drivers, no help. Followed a suggestion to uninstall and reinstall the Radeon. Uninstall went fine, but now Windows does not find the Radeon to reinstall. Help, please. Of course, if you can also help with the original problem of not being able to extend desktop, that would be a giant bonus. Thanks.
Oh, they are LG 4K monitors. Running Windows 10 Home. And, yes, I've tried the Settings, Control Panel, Device Manager approaches. They just do not see the card.
DELL-Chris M
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September 25th, 2018 06:00
Let's backup. You stated, "This is factory installed Radeon and it was working.". What was the original single monitor that you were using?
dlarius
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September 25th, 2018 07:00
I just meant the Radeon was installed by Dell when I bought the 8920..
DELL-Chris M
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September 25th, 2018 07:00
I can receive a private message from anyone logged into this Forum.
On the LG 4K monitors, list all of the video in ports.
dlarius
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September 25th, 2018 07:00
Not sure if your "....send private message...." is specific for me of just part of your signature?
DELL-Chris M
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September 25th, 2018 07:00
What was the original single monitor that you were using prior to the LG 4K monitors?
dlarius
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September 25th, 2018 07:00
Previously had a Samsung 4k and an Acer 1080 - both connected via HDMI. Extended desktop worked fine. I think I was using the HDMI on motherboard and one HDMI on the Radeon (but not absolutely sure).
dlarius
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September 25th, 2018 08:00
Not daisy chained, Two display ports on Radeon card. But, I first need to get the Radeon card recognized/installed.
dlarius
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September 25th, 2018 08:00
Of course, since the Radeon is not currently active, I'm just receiving video on one monitor via the onboard intel
Vic384
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September 25th, 2018 08:00
Have you tried connecting both monitors via HDMI? Apparently you connected your old 4K monitor via HDMI. I believe 4K requires HDMI 2.0. Are you daisy chaining your 4K monitors? I don't believe you can daisy chain 4K monitors based upon Displayport 1.2 bandwidth.
dlarius
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September 25th, 2018 08:00
Each monitor has two HDMI and one Display Port. I'm currently using the display port on both monitors.
dlarius
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September 25th, 2018 09:00
Thanks.... going to give it a try.... getting desperate.
dlarius
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September 25th, 2018 09:00
The "it" you suggest removing is the Radeon card itself - right? Thought about trying that, but felt it was just software glitch.
Tesla1856
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September 25th, 2018 09:00
Right. Yes, I hope so too, but I don't know how else you plan to get it to work.
You said it wasn't detected any more. That is how I fix that problem sometimes. Windows will re-enumerate the hardware.
Tesla1856
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September 25th, 2018 09:00
1. Good this is the best way, IMO. 2 DP to 2 monitors.
2. Sounds extreme, but you might have to:
- Remove Radeon card
- Boot system a few times with only Intel IGP working
- Reinstall Radeon and boot. See if it will PnP detect
Be careful and be sure to unplug and release "flea power" before even touching card or insides.
dlarius
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September 25th, 2018 10:00
Still not recognized. So don't know if it's the card, the mobo, or software. Guess I can try the card on another machine to rule out the card (hopefully).