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Second monitor disconnects after 2 minutes

Hi like the title describes, my 2nd monitor disconnects after a certain time.

I have an HP PC with a GT 5454 3 GB RAM graphic card and a Intel core i7. My main monitor connect with a HDMI cable and it work without problems, the 2nd is connected with a VGA cable and it's a Philips 190WV (old monitor). I thought it was because of the VGA cable but it isn't I just bought an new one and it happens over and over again ...

So what do you guys think is the problem? (Sorry for my bad English but I hope you'll understanding it)

1)firstly , check whether your onboard video card  or external graphics card supports

   dual monitors  or not , to check this , go board manufacturer website or  graphics card

     manufacturer website  

2) see below link for adding a  second monitor

      http://windows.microsoft.com/en-US/windows-vista/Add-a-second-monitor

3) guide help for settingup  dual monitor in windows 7

     http://support.microsoft.com/kb/976064

4) for more information see below link

     http://www.microsoft.com/athome/organization/twomonitors.aspx#fbid=fu6Rklpb7Lr

5) video cards FAQ

     http://windows.microsoft.com/en-US/windows-vista/Video-cards-frequently-asked-questions

6) move windows between multiple monitors

    http://windows.microsoft.com/en-US/windows7/Move-windows-between-multiple-monitors

7)  error message

      http://support.microsoft.com/kb/973782

8) Work and play better with multiple monitors

       http://windows.microsoft.com/en-us/windows7/work-and-play-better-with-multiple-monitors#section_1

 

I am working as a Mathematics lecturer in a PU college.
Windows11_Pro_64bit_23H2_buildno_22631.3374_MS.office365_C2R_2401_v17231.20236_Intel_i5_13500_Nvidia3060_12GB_GDDR6_RAM_32GB_5600_Storage8TB.

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I appreciate your help but I already did all of those things and it didn't work.

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Your graphics card has two ports both a vga and hdmi or dvi?

Or is your HP a laptop?

If a desktop and you connect only the vga monitor what then?

Contributor since 2006
Currently win11 Pro & O365 Bus, multiple devices

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Last updated November 24, 2021 Views 634 Applies to: