Windows 10: HDMI output has stopped working after update to 1909

For many (at least 3) years, I have used a Philips 225PL2 monitor as an extended desktop. It's been driven by the HDMI port of my laptop via an HDMI-to-DVI cable and has always worked without a problem. The only video output connector from the laptop is HDMI, there's no VGA.

Last night, I updated to Windows 10 64 bit version 1909 (build 18363.693) and suddenly, the monitor can't see the video output. It knows it's connected to something, or else the OSD would tell me, but it says "Attention: No video input" and then sleeps, so it's not seeing the video from the HDMI port.

I have connected the monitor, via the same cable, to an HP laptop that has not been updated to Windows 10 v 1909, and it still works, so neither the cable nor the monitor is at fault. I've also tried it with an older Dell monitor, which doesn't have the ability to tell me whether it can see the connection, but also sits there with a blank screen.

Things I have tried to date:

1. Windows-P and selecting either "extend" or "duplicate" - neither works.
2. Settings > Display > Multiple Displays > Detect - returns "Didn't detect another display".
3. Went to the Intel and NVIDIA websites and downloaded and installed the latest drivers for both the Intel HD Graphics 5500 and NVIDIA GEForce 940M chipsets. Intel is now version 20.19.15.5058 and NVIDIA is 26.21.14.4250.
4. Control Panel > Device Manager > Display adaptors > Properties - reports both drivers working correctly.
5. Control Panel > Device Manager > Monitors - unsurprisingly no longer lists the Philips monitor like it used to.
6. Turned everything off and turned it back on again *Rolleyes starting with the monitor first.
7. Ran sfc / scannow - said it found corrupted files and replaced them, but it made no discernible difference to anything when rebooted.
8. Ran the Windows hardware troubleshooter - reported no problems.

I'm loathe to do the one other thing I've seen suggested elsewhere - update the BIOS (assuming an update is available) - because why mess with what was working fine until the Windows update? (The BIOS is currently Insyde Version F.45, 23/05/2017).

It may seem a trivial issue but in fact it's had a huge effect on my productivity because the type of work I do is made much faster by the ability to use an extended desktop. So any suggestions / solutions would be greatly appreciated.

:)

 

HDMI output stopped working after blue screen.

Hi Koenbril, I'm Graeme, an independent adviser here to help.

If you've been experiencing multiple blue screens when gaming and now the HDMI output has stopped working, I'd suggest it's an issue with your graphics card, perhaps a hardware failure.

I'd normally suggest testing multiple cables or monitors and reinstalling drivers for your graphics card, as well as the other steps you mentioned, but since you've already tried those and it still doesn't work, it looks like it's a faulty graphics card.

My only recommendation would be to seek out warranty from the store you purchased the card to repair or replace it.

Please let me know if you have any other questions! Thanks!

 

hdmi output stopped working after the update!

Hello,

I (have HP Pavilion dv6 Notebook PC) after i upgraded from windows 7 to 10 the Hdmi output stopped working?? and I can't connect my Notebook to the TV NOW, i tried almost everything and it's still doesn't work???

PLEASE RELEASE AN UPDATE OR SOME SOLUTION FOR THAT PROBLEM AS SOON AS POSSIBLE!

 

ok got to work from hdmi and speaker but can output go from headset and hdmi

Hi,



Thank you for writing to Microsoft community forum.



To have a better understanding of the issue, please help us with the following information:

1. Are you trying to output Audio via HDMI/headset or to a speaker/headset connect to your HDMI device?
   

Meanwhile, I would suggest you to update the audio driver and set HDMI Device
as default device.



Regards,