What resolution is you laptop screen?

When you plug in your TV, there should be a higher resolution setting available. You will not be able to use it unless you set the TV as Primary or check to extend the desktop to monitor 2 instead of mirroring it.

BTW, when plugged into HDMI from my M1530, the screen on my Sony KDL-46W3000 is filled, even with the setting of 1680x1050.

Now, I just got to figure out why sound didn't work:(

Death Rider:

 

I also do not have sound out of HDMI on my M1530. I haven't found any help on the web. 

 

added:

 

Went back to Playback devices and set HDMI as the default sound and it works. Before I had just selected it without setting as default. Also interesting that the PC resolution is automatically set to 1280x720 to match my widescreen when the HDMI is plugged into the M1530. I can set the resolution back to 1680x1050, but the pic on the TV is not centered.

 

 

XPS M1530, Vista Home Premium SP1, T7250 Core 2 Duo (2.0 GHz 800 MHz FSB), 4 GB DDR2 667 MHz RAM, 200 GB SATA II 7200 RPM, Nvidia 8600M GT 256 MB, Wireless-AGN Mini-Card, BlueTooth, WSXGA+ High Def LCD (1680x1050) w/ 2 MP Camera

Dimension 9100, Dual-Boot Win XP SP2/ Vista Home Premium SP1, 3.0 GHz P4, 3 GB DDR2 533 MHz RAM, 160 GB SATA II Samsung (XP), 300 GB SATA II Seagate (Vista), 250 GB SimpleTech USB (WD Drive), Nvidia Go 6800 (425/825 MHz - XP, 400/800 MHz - Vista, Vista Driver - 169.25), Dell 1901 UltraSharp FP

Inspiron E1705, Win Vista Premium, T7200 Core 2 Duo (4MB, 2.0 GHz 667MHz), 2 GB DDR2 677 MHz RAM, 120 GB Samsung HD, Nvidia Go 7900 GS - 156.69 Driver, 17” Sharp UltraSharp TrueLife Wide-Screen WUXGA