Green flickering dots on my monitor

[aq88]

I bought a 27" monitor a few months ago. It is called Samsung S27D390. This monitor used to work the way it is supposed to and about a month or two ago, I stopped using it. Now, when I connect my laptop, I see green flickering dots all over the screen. I thought it was temporary and may go away with time but hasn't. My laptop screen is perfectly fine it is only this monitor that is showing me green dots on mostly grey colored regions.

I use HDMI cable for connection and my laptop is a gaming laptop with a GTX 970m (always updated to latest drivers) installed on it. Also there is an integrated GPU called Intel HD 4600, also updated, (Available Memory: 1792 MB and 32 MB dedicated) and I think my system is using this GPU as the main GPU. Could this be the issue?

Thanks

 

[vrumor]

Do you get the same dots when you connect another source to the TV?

 

[aq88]

Do you get the same dots when you connect another source to the TV?

I don't know as I don't have any other TV or monitor to try on.

 

[GearUp]

Do you get the dots on the desktop, browser, video on gray regions or only in games? You can change the gpu in use on some laptops. The BIOS would let you know what is setup.

 

[aq88]

Do you get the dots on the desktop, browser, video on gray regions or only in games? You can change the gpu in use on some laptops. The BIOS would let you know what is setup.

I get it everywhere. Be it games or desktop or anything. They are there, everywhere.

 

[GearUp]

In my case there was green pixilation due to the cable provider or channel (I can't find any record although I did document it). It disappeared the next day.
A related question soon after yours received comments about the BIOS that I assumed you found helpful. Restart the computer and press F2 or Del depending on the computer to enter the BIOS and find the Graphics setting. If it can be changed to the onboard graphics. I don't have a laptop myself. If that fixes the problem you know it is the graphics card.
If it is the monitor there may be a firmware update to install. I found Samsung support to be fairly decent but do some research in advance. I concluded in that case it was dark channels/programs in standard definition I had been using. The TV reset didn't actually solve the issue.
Update: Due to issues with two monitors I switched to single monitor setups. I assume the laptop display is turned off when the top is folded down so I it could make a difference in how the monitor initializes.

 

[GearUp]

I bought a 27" monitor a few months ago. It is called Samsung S27D390. This monitor used to work the way it is supposed to and about a month or two ago, I stopped using it. Now, when I connect my laptop, I see green flickering dots all over the screen. I thought it was temporary and may go away with time but hasn't. My laptop screen is perfectly fine it is only this monitor that is showing me green dots on mostly grey colored regions.

I use HDMI cable for connection and my laptop is a gaming laptop with a GTX 970m (always updated to latest drivers) installed on it. Also there is an integrated GPU called Intel HD 4600, also updated, (Available Memory: 1792 MB and 32 MB dedicated) and I think my system is using this GPU as the main GPU. Could this be the issue?

Thanks

It turns out I get this now on my TV after trying to do a reinstallation of my graphics card, but only after idle for a while. The best way out of it is entering Safe Mode and restarting. I completely removed everything for the AMD card and still get the funky colored bands associated with the card on startup. That's OK but suggests something is still affected by the installation. I then had trouble reinstalling the CableCard TV tuner drivers. It's been working but there is now no software listed to uninstall. I'm not sure if a clean install will make things normal or if Windows updates have changed something.
I haven't seen the gray screen for a while so the Safe Mode may be resetting the computer well enough.