My LG tv has 2 HDMI ports. Suddenly HDMI 1 will not show signal. HDMI 2 works ok with whatever I want to put in it, Sky Q or pc. I have reset the LG tv back to factory after trying all the other things like, unplugging tv, did it overnight, and disconnecting everything. Swapped leads, cannot thing of anything to try. I have to change ports each time I wish to go from pc to tv. Anyone got any suggestions please?