PS3 No Signal When Switch To HD

SOURCE: no video display,

PS3 is The amazing device by sony but it has some common problems like no video display,sound problem etc.... Good news is that these all problems can be repaired with the help of DIY Guides, one such guide available at PS3 Repair Blog

SOURCE: cannot output 1080p with a full hd 1080p hdtv

In the settings menu, go to video settings. You can have the PS3 search for "optimal settings" This will tackle both video & audio.
On a side note, you didn't need to spend all that money a HDMI cable. ( I'll bet it's a 'Monster' cable, right? ) The $16 Phillips at walmart is just as good. Unless your doing "broadcast quality digital" work, the expensive cables are overkill. Sorry, bro.

SOURCE: PS3 wont go 1080i/720p

I don't think there is a way to set your resolution manually, bro. They do it all by auto. If I may make a suggestion... Turn off both the TV & PS3. Unplug your HDMI, then make sure both your TV & PS3 are turned ON. Now re-connect your HDMI. A TV tech once told me that these units "communicate" through the HDMI. This can only occure whilst they're up & running. This may help get you going on to 1080i.
p.s. PS3 games only output 720p, max! This isn't always the case for Blu Ray movies, but it is for games. Good luck!

SOURCE: No signal when outputting 1080p on ps3

put your ps3 in standby (solid red light), and then hold the power button until it beeps a second time. then the picture should come up.

SOURCE: PS3 hdmi only working on some displays

I have noticed using an HDMI cable that with some of the newer tvs you have to set up the tv also to enable HDMI for a game system. Like you said before internet tv and blueray dvd player work fine. Try adjusting the settings on the tvs themselves. I have a 50in DLP mitsubishi, and had a very troubling time getting my ps3 to work on that particular tv set while it worked flawlessly on other sets. And what I had to do was enter my tv setup menu and then power on my ps3 with both my AV and HDMI cables connected, it would pick up the AV first. Then I would alter the video settings on the PS3 for HDMI, and unplug the AV cable. Exit the tv menu and then reenter it. Then I had to setup my HDMI port from the tv to game in order for it to work, where you can set options ar usually like cable/dvd/sat, and so on. Without my TV being set to game that way it would not work. Try this and see if it helps. Good Luck.