Just upgraded to windows 10. Having a HP-laptop a 20 inch was being used during my journey with windows 7. Now it will not work at all. Have uninstalled / installed, checked for updates several times but nothing works.

Anyone have any ideas? Your title is saying HDMI-VGA adapter not working, so what is it that the laptop is not working with the HDMI adapter or the system is not working need a little more clear info, as being a HP laptop you can do a hard reset by holding the power button down until it shuts down then remove the battery and AC power adapter, now hold the power button down for 10-15 secs release, now plug the AC adapter with out the battery power up the system and see if it is working okay it may take a few min's to complete loading, if ok install the battery. Just saying as I'm a unpaid volunteer.

After working with AMD tech support regarding proper driver for Radeon HD 5000 and correct configuration, made driver and hardware changes recommended. None of this helped.

For this to work, the Windows PC would need VGA/HDMI input. Forgive me for asking why don't you just plug the cable from the MAC into the C Monitor? When i connect a dvi or hdmi from my gtx 780 to my acer H274HL Monitor all works fine but when i want to connect display port cable on my gtx 780 and the other side is hdmi that goes to my monitor than there is no signal at all i am running windows 10 64 bit enterprise and all drivers are up to date.

Their last comment was it was a hardware problem with my computer and would require me carrying it to a repair shop. Decided I had read enough posts regarding similar problems and that I did not have a hardware problem I reverted back to Windows 7. In less that 15 minutes my system was working perfectly. No more problems with flickering monitor. Acer desktop all in one with windows 10 upgraded from windows 8. VGA to HDMI adapter will work to mirror the screen onto our VGA projector, but about every ten minutes or so, the desktop screen will flicker and the projector screen turns blue with the 'no signal' notification at the bottom. After ten seconds or so, the desktop will flicker again and the picture on the projector comes back on.

I have been told this is a video card driver adaptability issue in windows 10 making it incompatible with VGA adapters. How do I fix it without spending thousands of dollars on a new projector? Follow the steps below to run Hardware and Devices troubleshooter. • Press the Windows logo key + R to open the Run dialog box.

• Type control in the Run dialog box, then press Enter. • In the Search box in Control Panel, type troubleshooter, and then click Troubleshooting. • In the new window, click View all on the left pane. Apple to buy netflix and merge with itunes for mac only one. • In the list of options, click on Hardware and devices. • Click Next and follow the on-screen instructions.

For more information check the article below, also applies to Windows 10. Let us know how it goes.