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nvidia - Thinkpad W520 DisplayPort/HDMI sound - Ask …
https://askubuntu.com/questions/643447/thinkpad-w520-displayport-hdmi-sound
Show activity on this post. On my Thinkpad w520 with Nvidia Optimus (using Nvidia properietary drivers) I connected an external monitor via DisplayPort, using a Displayport -> HDMI adapter cable. The monitor has integrated speakers and the first time I did this, sound output worked like a charm.
W520 : No sound with non-Lenovo branded monitor after ...
https://forums.lenovo.com/t5/ThinkPad-P-and-W-Series-Mobile/W520-No-sound-with-non-Lenovo-branded-monitor-after-connected/ta-p/1338821
W520 : No sound with non-Lenovo branded monitor after connected via Displayport. Question. When I connect my external monitor (ASUS PA248) to my W520, the audio from W520 disappears. When I disconnect it, the audio returns. This seems a bizarre link between audio and video, but there it is. Note that the PA248 does not have built-in speakers.
Lenovo W520 displayport; which version? | Tom's Guide Forum
https://forums.tomsguide.com/threads/lenovo-w520-displayport-which-version.388800/
I recently acquired a nearly new Lenovo W520 (W520 (4284-HZ5) I-Core i7-2860QM 2.50 GHz/8GB RAM/500GB laptop. I now want to connect it's displayport to an Accell DisplayPort to 3 DisplayPort Multi-Display MST Hub or a similar unit. However, the Accell & most other units are compatible with only version 1.2 displayport protocol!
W520 DisplayPort to HDMI : thinkpad - reddit
https://www.reddit.com/r/thinkpad/comments/71m518/w520_displayport_to_hdmi/
Yes (see below), tested with a TV, both video and audio are transmitted. Displayport to HDMI Adapter, Benfei Dp(Display Port) Male to Hdmi Female Converter with Audio for Lenovo, Dell, HP, Asus and other brand(Dp to Hdmi):
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