PC out to TV flickering

[tinpanalley]

I've always had an HDMI cable running to my TV from my desktop for gaming and for some PC work. But we just got a new TV and switching to the TV from the PC (via an HDMI splitter) is causing the image from the PC to flicker. What causes this typically and what settings can I check on the TV and PC to stop it from happening?

Thanks for any help!

[FI Fheonix]

37 minutes ago, tinpanalley said:

I've always had an HDMI cable running to my TV from my desktop for gaming and for some PC work. But we just got a new TV and switching to the TV from the PC (via an HDMI splitter) is causing the image from the PC to flicker. What causes this typically and what settings can I check on the TV and PC to stop it from happening?

Thanks for any help!

First of all, try changing you HDMI cable, then try updating GPU drivers, you can also try running the hardware troubleshooter and changing to a different HDMI port if your TV or GPU has multiple.

[tinpanalley]

56 minutes ago, FI Fheonix said:

First of all, try changing you HDMI cable, then try updating GPU drivers, you can also try running the hardware troubleshooter and changing to a different HDMI port if your TV or GPU has multiple.

How do I know if I'm using the right HDMI cable? It's been a while since I have changed any of them and it wasn't really an issue the last time I hooked things up to a TV. Do I check the version of the ports on the TV and then buy a cable that matches? Does it matter what the ports are on my GPU?

[FI Fheonix]

14 hours ago, tinpanalley said:

How do I know if I'm using the right HDMI cable? It's been a while since I have changed any of them and it wasn't really an issue the last time I hooked things up to a TV. Do I check the version of the ports on the TV and then buy a cable that matches? Does it matter what the ports are on my GPU?

I mean, it doesn't matter if you are using the right one or not that is contingent on which one is completely functional. Just try changing the cable if you have a spare one around.

[tinpanalley]

2 hours ago, FI Fheonix said:

I mean, it doesn't matter if you are using the right one or not that is contingent on which one is completely functional. Just try changing the cable if you have a spare one around.

I put on a new cable that happened to be 2.0 (...it's just that it's 25ft long and quite thick, we used to need it in a different apartment) and there's no flickering whatsoever now. Thank you for your help. Tiny ms bit of delay on the mouse but nothing major. 

But I'm now curious...

The cable in question that wasnt working was a High Speed, so that's 1.4. The new TV takes HDMI spec 2.0. The GPU port on the PC says it supports 4K@60Hz as specified in HDMI 2.0b. So is it correct to assume I didn't have problems with the last TV because its ports were HDMI 1.4 like the cable?

[FI Fheonix]

1 hour ago, tinpanalley said:

I put on a new cable that happened to be 2.0 (...it's just that it's 25ft long and quite thick, we used to need it in a different apartment) and there's no flickering whatsoever now. Thank you for your help. Tiny ms bit of delay on the mouse but nothing major. 

But I'm now curious...

The cable in question that wasnt working was a High Speed, so that's 1.4. The new TV takes HDMI spec 2.0. The GPU port on the PC says it supports 4K@60Hz as specified in HDMI 2.0b. So is it correct to assume I didn't have problems with the last TV because its ports were HDMI 1.4 like the cable?

Yes, that is most likely the reason for the issue. If my comment solved your issue please mark it so.

[Koolholio]

If line (p vs i) 1080i (i interlaced)

flicker? Hz (supporting resolution framerate)