Always good to know Im not alone
I have an Acer laptop and connect to a HD TV with HDMI cable. Its been working fine for over a year, even after upgrading to Windows 10.
What I get thats not mentioned here is when the PC is powering up my TV will show the same image as the laptop (the Windows 10 window with the circle of dots underneath) but on my TV screen the image is distored, ie its a blue background (laptop black) and has lots of black lines across the screen like its not tuned in right.
Ive gone into drivers for my onboard graphics card and it says its up to date.
The weird thing is, if I go into sound settings the Playback thats normally auto enabled when HDMI is connected - ATI HDMI OUTPUT- to my laptop is showing as not plugged in.
Yet if I go into Control Panel - Display- it shows SAMSUNG (my TV) as the 2nd option and when I disconnect the HDMI from my laptop it makes the disconnect sound, yet still it says under sound settings its unplugged and the tv stays a black screen after the initial blue distorted loading screen.
It must be an update to Windows or something as its happened in the last fw weeks and Im not aware of anything else thats been updated.
Ive tried unplugging both laptop and TV and plugging back in again but I still get the same result.
Ive tried updating Graphics card driver and Ive tried a different HDMI cable too.