Both hdmi ports dont work Vizio 50" model P50HDM

SOURCE: green screen vizio lcd

My 37" vizio I bought in Dec 2007 did this (green screen at start-up on all inputs). At first it went away by itself after you left the unit on for 15 minutes, but then 2 days later the whole thing DIED. Luckily Costco has a 90 day return policy on TVs.

Vizio tech support suggested this (before it died that is):
Please try to reset all setting and then to see if the problem is solved. 1. Press the Menu on your Remote Control;
2. choose Set up on the OSD;
3. then choose Reset All settings;
4. Press the Exit on your Remote Control to remove the OSD.

SOURCE: I Have A Vizio 32LCD and my problem is i am trying

Adjust the system's video output settings. Select the best output settings for the TV in use.

1. Check the resolution supported by your TV.
Resolution (video mode) varies depending on the TV type. For details, refer to the instructions supplied with the TV.

2. Select (Display Settings) under (Settings) in the home menu.

3. Select [Video Output Settings].

4. Select the connector type on your TV.
Resolution (video mode) varies depending on the type of connector used.

Input connector on the TV Supported video modes (NTSC region) *1 Supported video modes (PAL region) *1
HDMI 1080p / 1080i / 720p / 480p 1080p / 1080i / 720p / 576p
Component / D-Terminal *2 1080p / 1080i / 720p / 480p / 480i 1080p / 1080i / 720p / 576p / 576i
Composite / S Video *3 480i 576i
AV MULTI / SCART *4 480p / 480i 576p / 576i
*1 The video mode options vary depending on the region where the PS3™ system was purchased. In North America, Asia and other NTSC regions, 480i video mode is displayed as [Standard (NTSC)]. In Europe and other PAL regions, 576i video mode is displayed as [Standard (PAL)]. For details, refer to the instructions supplied with the product.

*2 D-terminal is a connector type used mainly in Japan. The resolutions supported by D1-D5 are as follows:
D5: 1080p / 720p / 1080i / 480p / 480i
D4: 1080i / 720p / 480p / 480i
D3: 1080i / 480p / 480i
D2: 480p / 480i
D1: 480i

*3 Composite is the connector used to connect the AV cable that is supplied with the PS3™ system. S VIDEO is a format mainly used in Japan.

*4 AV MULTI is a format mainly used in Japan. SCART is a format mainly used in Europe. If [AV MULTI / SCART] is selected, the screen allowing you to select the type of output signal will be displayed.


5. Change video output settings.
Change the resolution for the video output. Depending on the connector type selected in step 4, this screen may not be displayed.

6. Set the resolution.
Select all resolutions supported by the TV in use. Video will automatically be output at the highest resolution possible for the content you are playing from among the selected resolutions.*
* The video resolution is selected in order of priority as follows: 1080p > 1080i > 720p > 480p/576p > Standard (NTSC:480i/PAL:576i).
If [Composite / S Video] is selected in step 4, the screen for selecting resolutions will not be displayed.
If [HDMI] is selected, you can also select to automatically adjust the resolution (the HDMI device must be turned on). In this case, the screen for selecting resolutions will not be displayed.

7. Set the TV type.
Select the type of TV in use. Set when only SD resolution (NTSC:480p / 480i, PAL: 576p / 576i) is to be output such as when [Composite / S Video] or [AV MULTI / SCART] is selected in step 4.

8. Check your settings.
Confirm that the image displayed is at the correct resolution for the TV. You can go back to a previous screen and revise the settings by pressing the button.

9. Save your settings.
The video output settings are saved on the PS3™ system. You can continue on to set audio output settings. For details on audio output, see (Settings) > (Sound Settings) > [Audio Output Settings] in this guide.

SOURCE: Vizio Model#:L37HDTV10A

Is the HDMI port 2 work? Try to turn it off and turn it back on. If it is still not working then the HDMI ports have gone bad. You will need to replace the main board.

SOURCE: eed help connecting MacBook Pro to Vizio VP50HDTV

yeah just lower your resolution on you Mac and you going to be ok

SOURCE: hdmi on vizio hdtv input says not support

Ur board is shorted it cost alot to replace the board for just the HDMI port to use.Must change the board or use the S-Video port.