Very strange......I subscribe to this thread but was just given notification(2-9 12:05am) someone posted to it, even though the post looks like it was made more than 24hrs earlier at 2-7 11:34pm
Roberto, when you say you change the input for PC mode, what do you mean? Are you selecting the PC input, the bottom last input on the list of inputs? if so what do you mean by the TV recognize the PS4 as PC?
I use the PC input for my PC and it works just fine but note selecting the PC inputs doesn't give you nearly as many picture adjustments, it's just how this and most TVs work when selecting the PC or VGA input. When you select any other inputs than PC you get the full range of picture adjustments.
Knock on wood one of my W4100s is still working, my original 46" purchased new. As I wrote further back in this thread my second W4100, a 52" purchased used many years ago died a few years back with the ugly green hash marks all over the screen. Working beautiful one minute, a few hash marks the next and by 5 minutes was basically unwatchable as the screen was totally covered by the green hash marks. Tried reseating the ribbon cables best I could, even took it in to a repair shop who tried the same but to no avail, they later scrapped it
Since then I consider every day my 46" works to be a blessing, still works great after all these years. I'll sure miss it when it dies as all modern HDTVs lack the inputs this one has and IMO their picture isn't better, at least with 1080p and lower resolutions