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windows 8.1 dual monitor detection issue

Last response: in Graphics & Displays
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November 22, 2013 2:16:55 AM

I have two monitors and only one of them is being detected by my computer. I have 1 18" lg (not being detected) and 1 24" SILO. I had two monitors working before updated to windows 8.1 from 8. Also I cannot get the right resolution for my SILO
a b * Windows 8
a b C Monitor
November 22, 2013 2:26:48 AM

Sounds like you have to install / reinstall the graphics card driver.
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November 28, 2013 11:01:01 AM

I have the same issue as Faestaris. And nothing help's.
My dual monitor is black after updatet to 8.1.
I has tryed to deinstall and install the amd driver software or under safe mode deinstall the windows default driver. Really nothing happens.
I think the problem is Windows and not the graphic driver. Because a other BenQ Monitor is also black when i plugged via DVI.

Here some infos about my system:
-- OS
Windows 8.1 Pro (since last week updated)
-- Graphic Card
AMD Radeon HD 7900 (lastest AMD 13.11 Beta 9.4 installed)
The new graphics driver of amd are ready to download under http://support.amd.com/en-us/kb-articles/Pages/latest-c... but it's not solved my "black screen problem".
-- Monitors
22" Samsung Syncmaster 2233BW (primary)
19" BenQ FP937s (second)

The actual state that the 19" monitor get signal (the led near the powerbutton lighs green) but the whole display is black.
Both monitors are plugged by DVI cables. With VGA cable is'nt possible to detect the 2nd monitor.

Under Device-Manager is the second monitor called "PnP-Monitor Standard" and in the resolution manager of windows they called by name "BenQ FP937s" also in Catalyst Control Center.

If i reanimate my monitor. BenQ logo shows - fade out - desktop appear (low brightness but seeing task and background-image) and after 2 seconds its complete black.

Has someone the same problem and has a solution?

offical amd forum post: http://forums.amd.com/game/messageview.cfm?catid=454&threadid=169703&enterthread=y
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February 17, 2014 9:16:51 PM

Willy Fetzig said:
I have the same issue as Faestaris. And nothing help's.
My dual monitor is black after updatet to 8.1.
I has tryed to deinstall and install the amd driver software or under safe mode deinstall the windows default driver. Really nothing happens.
I think the problem is Windows and not the graphic driver. Because a other BenQ Monitor is also black when i plugged via DVI.

Here some infos about my system:
-- OS
Windows 8.1 Pro (since last week updated)
-- Graphic Card
AMD Radeon HD 7900 (lastest AMD 13.11 Beta 9.4 installed)
The new graphics driver of amd are ready to download under http://support.amd.com/en-us/kb-articles/Pages/latest-c... but it's not solved my "black screen problem".
-- Monitors
22" Samsung Syncmaster 2233BW (primary)
19" BenQ FP937s (second)

The actual state that the 19" monitor get signal (the led near the powerbutton lighs green) but the whole display is black.
Both monitors are plugged by DVI cables. With VGA cable is'nt possible to detect the 2nd monitor.

Under Device-Manager is the second monitor called "PnP-Monitor Standard" and in the resolution manager of windows they called by name "BenQ FP937s" also in Catalyst Control Center.

If i reanimate my monitor. BenQ logo shows - fade out - desktop appear (low brightness but seeing task and background-image) and after 2 seconds its complete black.

Has someone the same problem and has a solution?

offical amd forum post: http://forums.amd.com/game/messageview.cfm?catid=454&threadid=169703&enterthread=y


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February 17, 2014 9:18:10 PM

Hi - I just upgraded to 8.1 and my monitors are black. Were you able to get yours working?

Thanks
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April 15, 2014 3:41:39 PM

I've had this same issue happen after an update (windows 8.1 update 1).

I believe the problem was related to the caching windows 8 does to enable the hybrid shutdown/startup capability.

I fixed the issue by doing a full reboot by executing the following command in the command prompt
shutdown -S -F -T 20 -C "Shutting down in 20 seconds"

Hope this helps someone else
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6 minutes ago

tk421_tk421 said:
I've had this same issue happen after an update (windows 8.1 update 1).

I believe the problem was related to the caching windows 8 does to enable the hybrid shutdown/startup capability.

I fixed the issue by doing a full reboot by executing the following command in the command prompt
shutdown -S -F -T 20 -C "Shutting down in 20 seconds"

Hope this helps someone else


can u explain a little more coz i dont understand what u just said .. may be step by step will help..
i m having same problem.. trying to setup 2 monitor for the first time and windows isnt detecting my 2nd monitor
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