I have stuttering on PC connected to TV, when monitor is also connected to PC at the same time, but it in standby. TV - LG SK9500 connected to 1080ti via some HDMI 2.0 rated cable (CC-HDMI4F-6) + PC Monitor - Philips 247elh connected to 1080ti via some HDMI 1.4(?) noname cable Stuttering occurs in games like BF5 and Forza Horizon 4 (didn't test anything else). FH4 benchmark shows ~80 skipped frames in one run and i have stuttering (at equal intervals) ingame. In BF5 i also have stuttering (at equal intervals). And sometimes randomly TV lost video/audio signal for 1-2 seconds. Here is a sample of that stutters (on TV): But then i turn off the PC monitor by button (not even by power plug) - stuttering is gone and all is smooth on the TV. What it can be, how do you think guys?