Hi, I tried to connect my gateway laptop to the LCD tv using a hdmi cable. The tv didn't response so I restarted the computer and the tv actually showed the same starting screen, but when the vista window kicked in the TV turned blue again and showing "not supporting". The TV is 1080i max. Vista is 32bit.
Re: having prob connecting my laptop to a TV via hdmi
Try playing around a bit with the display settings, there are not many laptops that are setup to automatically adjust to the dual screen setup with an lcd tv. Also, iv found that Not using the lcd as a duplicate of the main screen is a good idea, set it up as a separate screen...if you know what i mean, if you do it right you will see only yourbackground on the tv and no start menu bar or icons.... In this configuration you can set the resolution to the max for the best quality possible for your television.
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Second look for HDMI port at the side of your laptop. (It may not be the model of your laptop.)
Third look for the HDMI port on you T.V. (It may not also the model of your T.V.)
After confirming those connection on your T.V. and Laptop, you can just the HDMI cable to connect you Laptop to T.V. Also you need to choose HDMI on your T.V. settings and for your Laptop you can just switch the display by pressing FN+F4 or F5.
Assuming you are using Windows XP, here is a link to a Microsoft article outlining how to enable the second monitor. The only thing I would add is that once you get into the properties window, your second monitor may show up darkened out. If it is, you need to right-click on it and select "Attached" before continuing on:
HDMI is only used for Video output and not for sound, you will have to use your laptop audio out (has a pic of headphones), you are able to get headphone jack to phono (white / Red) cable to connect to TV or surround sound system or your laptop speakers.
First off, is the tv set to use the hdmi input? if not, change tv to hdmi input and try again. If still no good, you likely need to tell the laptop to use the hdmi connector. Try this:
connect hdmi from laptop to tv and select hdmi input on tv.
while holding the blue fn key (bottom left side of kbd) press and release the F5 key. This will toggle the laptop between the laptop lcd display, external connectors (vga/hdmi), or both simultaneously. Let me know if this works or not.....
Make sure your TV does indeed support the resolutions you are trying to use. Some low quality HDMI cables can also be troublesome in higher resolution so try one you are sure to work.
Regarding to the desktop only being extended when using the RGB cables, try bringing up the desktop properties window, select the TV as the primary monitor and select "Use this monitor as Primary monitor". You might have to drag the windows Taskbar over to the other monitor, just rightclick the taskbar, uncheck "Lock the Taskbar" and drag it over to the other monitor.
Hope you find this solution helpful, and please rate it if you do so..