Originally Posted by AceMT
Need help please.
I have a six month old XBR75Z9D. I have recently been getting green dots and blanking on the screen via 2 computers attached to the tv. One is an HTPC, and one a gaming computer. I noticed that changing the frequency from 60hz to 30 fixed the problem on both inputs. I figured it might have been a Nvidia issue as I had just updated the drivers on both windows 10 computers. So I tried that first, with no luck. Also tried turning off the HDR option in windows 10. No luck.
Second, I purchased all new hi-speed cables for both connections. No change.
Thirdly, using the tv's restart function to reboot the tv fixes the issue every time. Problem returns next day after everything is turned on again. Restart fixes again. This has got to be a tv issue doesn't it?
Sony wanted me to do a factory default reset but I would obviously lose all my calibration settings if I did that, and don't really see how that would fix anything anyway.
Any ideas from the forum would be most appreciated.
PS I should mention that these are separate inputs to the TV. HDMI 2 & 3.
I know you replaced the cables and that is a good troubleshooting step but what you are describing as far as artifacts and blanking still sounds like a cable issue. How long are the runs from your PCs? Are the new cables you bought Premium Certified?
The fact that you lower the refresh rate and the issue goes away, meaning there is less data being carried through the cable also points to cables that aren't up to the task.
Lastly, they are connected to HDMI 2 and 3 with the HDMI inputs set to "Enhanced"?
(Sidenote: The factory reset is the typical CYA, "Did you try turning it off again?", "leaving it unplugged for 10 seconds when your internet keeps dropping" troubleshoot method and likely won't do anything.)
Worth trying. Unplug your TV and leave it for a few minutes, then plug it back in. The other week I replaced the HDMI cable with a higher quality one running from my pre-pro to the TV. I reseated the cable and rebooted a bunch of times and I would get blanking at 4K no matter what. Kept rebooting, reseating the cable, etc. No luck. After getting frustrated and a moonshot attempt, I unplugged the TV, took a walk, came back, plugged it back in, rock solid signal ever since.