I cannot connect to an external display. In this case it is a TV via an HDMI cable that has worked well for over one year.
Something unexpected happened while I was not using this second monitor and would not detect it. I tried with the TV on and off a couple off times. I tried the Windows key + P and that did not work either. I ran a full Scan with Malwarebtyes, anoher with Bitdefender, another with Spybot, another with Emsisoft (EEK), another with Rogue Killer, another with Kaspersky TDSS Killer, another with Panda free and another with adwKiller.
These were of no help either.
sfc /scannow said there were no integrity violations. I must have rebooted 6 or 7 times.
I plugged and unplugged the HDMI both from my monitor and my TV.
My drivers are up to date.GeForce experience confirmed that my GT 740 had the last driver and so did devmgr on the monitor driver.
I am running out of ides. Could someone help me please??
Edited by hamluis, 15 June 2015 - 03:38 PM.
Moved from Win 7 to Internal Hardware, then to External Hardware - Hamluis.