Can i screenmirror in my Dynex tv via sony blue ray using a MHL plug and play cable?

SOURCE: blue ray player wont play blue ray ''Kung Fu Panda'' disc.

i fixed this exactly as previous posted solutions, however a couple of points.
a) recordable CDs work if you don't have a DVD burner.
b) I didn't have a CD burner that would do an "image burn", I downloaded a free copy of "Express Burn" and that worked fine. The disk needs to be "finalised" or "fixated", it should do this automatically, or it may be a tick box selection.
c) I got a "No DWLD 09" when I put the disk into the player. I found this was an incompatibility with the CD-R (Maxwell) I was using. I changed to JVC and it worked fine.

SOURCE: 42LG50 TV - Intermittant sound problems with blu-ray HDMI input

You say this doesn't happen on regular cable or when playing a regular DVD. Hmm. Is this Blu-Ray player connected by simplink? HDMI is a bi-directional format cable, so  there are cases in setups where your tv can send commands to your blu-ray player and vice versa. It could be a problem with your blu-ray player that it is sending for some odd reason a mute command to your tv. Or is processing a command that your TV interprets to be a mute command when playing blu-rays. Because if it was the TV itself chances are you'd see this when watching a normal DVD or on cable as well. Since you say you're not, it leads me to believe the issue lies with the blu-ray player itself. 

SOURCE: HDMi cable hooked up, but I get an

you have to go to the input button on the remote and push HDMI

SOURCE: I have a new HP

Hi,

This is a security feature of the High Definition Content that it does not allow veiwing of any high def content on dual displays.

There is a very simple fix to it...
Go to Nvidia control panel..
Select setup multiple displays..
Choose the option Single display ( one display at a time ).

Thats it.. This should enable you to play the blue ray dvds on the external display.

Regards,
Anup

SOURCE: The Yamaha RX-V463 AV does not playsound from the blue ray player

"I am also having difficulties in try to display the yamaha set up menu on the tv."
According to the manual the display menu for TV will not work with HDMI hook up.
I also have a Panasonic HD TV and can't get TV sound through my Yamaha AVR on "TV Sound" mode.  Trying to use HDMI cable for this also.  Do I need a digital optical cable or do I not have something set right?