Help! Problem connecting iMac 27" to 32 inch TV FUNAI

[Wilchur]

Hi there!
I recently bought myself a mini display port/ Thunderbolt to Hdmi adapter and tried to connect it to my TV via HDMI port but for a moment there's info RETRIEVING DATA and then NO SIGNAL. I tried even with changing resolution but no good. In System information in the field Thunderbolt it says that 'no device connected'. I even swapped HDMI cables but nothing works. Mac and Tv don't see each other. Any ideas?

 

[simsaladimbamba]

What Mac OS X version do you run on what exact Mac?

To find out what Mac OS X version you run, click > About This Mac:

To find out, what exact Mac model you use, click > About This Mac > More Info > Hardware Overview:

To see a more elaborate image explaining the above steps, click here.
To see a more detailed video tutorial showing the above steps, click here (2 MB, 23s, .mp4).​

​

And is there an ARRANGEMENT tab in System Preferences > Displays?
And what exact adapter do you use?

 

[Wilchur]

Mac OS X Lion version 10.7.3.

Specific Info:

Model : iMac
ID: iMac12,2
Processor: Intel Core i5
Processor speed: 3,1 GHz
Number of processors: 1
Cores: 4
Memory L2 (for core): 256 KB
Memory L3: 6 MB
memory: 4 GB
Version Boot ROM: IM121.0047.B1F
Version SMC (system): 1.72f2
Serial number (system): C02G557HDHJQ
UUID : 1E9C4EA3-7968-5332-A4F3-854BF82D6BD0

(I was translating left to column to English since my Mac has different language so not everything will be the same but you should catch up with it)

Now adapter:

Photos: http://www.protech-sklep.pl/data/gfx/pictures/large/9/3/139_3.jpg

http://www.protech-sklep.pl/data/gfx/pictures/large/9/3/139_1.jpg

Data

Mini DisplayPort Male 20pin
HDMI 1.3b. Female 19pin
Resolution: (HDTV):Interlaced(50,60Hz):480i,576i,1080i
Long : 15 cm

TMDS : 10.8 GB
Video signal speed: 6.75 Gbit/s
Audio signal speed: 36.86 Mbit/s
Max signal : 225MHz
Max resolution : 1920x1080P /60Hz
Colour depth : 36 bpp
Audio : 8 channel/192 kHz/24-bit