Thinkpads Forum

I know I can use DP->HDMI converted to connect a HDMI TV to T510 (I hope sounds goes through, too).

But if my laptop screen is only 1600x900, can it still send 1920x1080 1080p HDMI signal to the TV?

Yes.

BTW, sound does go through also, but usually, you have to do9 something to turn it on. Search the forum for hdmi sound