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displayport + 3.5mm audio to HDMI? - Super User
https://superuser.com/questions/849318/displayport-3-5mm-audio-to-hdmi
I have a Lenovo W500 and apparently, the graphics card (ati radeon) doesn't support audio output through the display port. But, connecting separately from the headphones to the RCA inputs in the TV doesn't work either. I searched for a DisplayPort->HDMI adapter that also supports a 3.5mm audio jack, but could not find one.
Review Lenovo Thinkpad W500 Notebook - …
https://www.notebookcheck.net/Review-Lenovo-Thinkpad-W500-Notebook.11683.0.html
1 PC-Card, 1 Express Card 54mm, 3 USB 2.0, 1 Firewire, 1 VGA, 1 DisplayPort, 1 Modem, 1 Kensington Lock, 1 Docking Station Port, Audio Connections: Microphone/LineIn, Headphones/LineOut, Card ...
W500 Displayport -> HDMI TV-Deutsche Community
https://forums.lenovo.com/t5/W-P-Serie-ThinkPad-Notebooks/W500-Displayport-gt-HDMI-TV/m-p/347915?page=1
W500 Displayport -> HDMI TV 2011-01-03, 22:03 PM. Hallo zusammen, ich habe heute versuch meinen Lenovo W500 über ein Displayport-HDMI Kabel versucht an den Fernseher anzuschliessen. Jedoch bekam ich kein Bild auf dem TV, jedoch hat sich die Auflösung nach dem einstecken in den Laptop verändert. So als hätte der Laptop doch eine Verbindung.
W500 displayport to HDMI only supports 1920 x 1200 ...
http://forum.notebookreview.com/threads/w500-displayport-to-hdmi-only-supports-1920-x-1200.332263/
the W500 is limited to 2048x1536 over displayport.   you'll need the advanced mini dock to drive your dell at 2560x1600 over dual-link DVI-D. besides, HDMI is meant for high-definition digital video content and is limited to 1080p (1920x1080), so 1920x1200 is likely the best anyone will ever get over HDMI (and HDCP for that matter).
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