My dad wants to use an old flatscreen as a larger monitor for his laptop so he can see better. I connected it with an HDMI cable, and the desktop shows up, but the display looks green, noisy, and constantly jumping (it would really help if I could post photos, but oh well). The monitor is pretty old (bought it in 2009), but the laptop is new as of last year, so maybe it’s just a hardware incompatibility? Can anyone think of a way to remedy this or another way to connect the two? I am moderately tech savvy, but have had virtually no AV experience. TIA!
Laptop: Lenovo Yoga 7 16IAP7, running Windows 11
TV: Vizio HDTV VX240M
What is resolution set to? Should be 1920×1080 at 60Hz.
Check for driver updates regarding display/graphics. (Unlikely the issue)
The television might use an old generation of HDMI (slower/less data transfer) and the updated device could be too much for it?
Also, try different hdmi cables to rule out a faulty one.