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Extending monitors revert back Radeon HD 5800

Question asked by theo1945 on Nov 6, 2015

I have a Radeon HD 5800 series graphic card with three monitors. All work well. I also have a Quasar 55" 4K UHD TV that I can extend too by disabling one of my monitors and the desktop shifts over to the 4K TV (HDMI). This also works. However, after about 40 seconds it reverts back to the 3 monitors. I have the most current drivers for both the graphics card and the CCC. I am on windows 10. Can anyone think of an idea why it would apparently time out and revert back?  Thanks in advance for any help. Ted

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