Hi
From September my TV every 15 to 20 minutes started to do an HDMI1 handshake with the screen blanking and flashing for a few seconds before the TV picture returned. My Humax HDR-1000S is connected to the TV's HDMI1 and it is in standby mode when the handshaking happens!
Initially the TV was a Panasonic TX-26LXD70 but lately it has been a Panasonic TX-L32G10B. Both TVs exhibit the same issue.
I rang Humax support who told me it was a faulty HDMI cable.
To test their theory I replaced the HDMI cable with a brand new one but it made no difference.
Next, I moved the Humax cable to the TV's HDMI2 port and the Bluray player to HDMI1. The HDMI handshake problem no longer occurred. Putting the cables back caused the problem to happen again.
On both Panasonic TVs the HDMI1 port is different from the TV's other HDMI ports in that it does an auto wakeup(?) when the device that is connected to it is switched on (from standby in the case of the Humax). This does not happen when a device is connected to the TV's other HDMI ports.
As the problems started in September it raises the possibility that the software version UKSFAA 2.02.01 released on 02 Sep 2014 is the cause of the problem I have described above.
Any thoughts from you experts reading this forum?
Thanks
Paul