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I checked the BIOS, driver, resolution settings, enabled mirror (or clone) desktop to second monitor, and made sure the i connected the HDMI cable to the laptop before i turned it on. Sometimes i get a few sporadic seconds of picture and sound on my DLP, but mainly it says 'mode not supported'. Help - any suggestions? Thanks
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iam121,
What resolution are you outputting from the laptop's video settings?
--HDTech
lam121,
Try turning off the mirror setting, and instead use the FN+F7 (or Function Key that enables the video output thru the 15 pin connection. I know on Dell computers, it's FN+F7, and on ThinkPads it may be FN+F4. Each manufacturer is different. But I hook my laptop up to an external monitor every day and have to go through the process when starting the computer.
Also to keep in mind, you may try the Fn+F# combination once and get the same error. That means it's going to mirror. What you want to do is have the computer send the signal ONLY to the television, so that may require hitting the FN+F# key a second time. At that point, it will send it only to the television, and that should do the trick. I don't know what Gateway's F-key funtion key for external monitor enabling is, but if you can figure that out (usually a picture of a box or it may say LCD), that would be my suggestion.
--HDTech
1900x1080? That's an odd resolution for a TV to support, to begin with, quite frankly. Have you tried setting the Desktop resolution to something your TV can definitely support?
On the other hand, for your TV, the manual specifically states that:
"You cannot connect this TV to a PC via HDMI/DVI." (Page 100). There is a table of supported resolutions on Page 102.
I am going strictly by the manual, of course. So technically, the TV is behaving perfectly within specs.
_jr_
Good call, _jr_!
For ease of use, I've posted the codes here:
http://i397.photobucket.com/albums/pp60/samsung_hd_tech/HLS5687WPCCodes.jpg
Try running in one of those resolutions with the 15-pin monitor cable, and you should be able to connect.
--HDTeech
Yea - i read that on pg 100 but i didnt want to belive it and was hoping someone would tell me it wasnt true. i dont really want to use any other connection beside a HDMI to hook up my laptop to my tv. its one of the reasons i got the laptop. so i guess that means ill just have to buy another tv 
thanks for all your help
Although i have not messed with the connection much since i got it, i to have had the same issue. I will try again tonight, and repost if i figure anything out.
On my laptops that works better. I also have an option to "Make this my primary display" when I want to play a DVD.
My experiences tell me to avoid the clone desktop settings.
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