T410s/T410​/T510 DP- HDMI, audio questions, survey

Question

Hi,
after all the confusion concerning DisplayPort-audio and the T-series, I decided to find out for myself and test it at my local Lenovo dealer.
As my dealer had not a single HDMI and audio capable output device in his shop, I brought my own Medion MD 20226 LCD TV, which has 2 HDMI-in ports.
The idea was to use a 2m DisplayPort->HDMI-cable provided by the dealer in order to connect the T410s in question to my little TV.
Background: Due to the misleading information from Lenovo concerning the last generation T400s/T400/T500 models and their audio over DisplayPort issue (no audio at all), I expected to get a picture without any problems but that I would need to figure out how to enable the sound by changing some settings inside Windows 7.
What happened: Actually neither me nor my dealer were able to get ANYTHING out of the DisplayPort, when using the DisplayPort->HDMI-cable. There was NEITHER video NOR audio!
I should point out that at the time being my dealer only had T410s models without the (maybe) switchable NVidia graphics.
Another point that I want to emphasize is that, after 45 minutes of trying everything we could to make it work, we switched to the T510 that was standing right beside the T410s in his show room. Unfortunately I was too confused to ask what kind of graphics setup this machine had, but the result was the same: no video, no audio at the TV.
As it is apparent that there are quite a lot of confused Lenovo customers out there that have similar questions:
I HEREBY FORMALLY ASK FOR A DETAILED AND IN-DEPTH INVESTIGATION/CLARIFICATION OF POSSIBLE DP->HDMI, DP-AUDIO AND DP->HDMI-AUDIO ISSUES WITH THE CURRENT T410s/T410/T510 SERIES (all combinations of graphics cards).
Of course I think that it would be best if one of the Lenovo engineers would take care of that in one of the Lenovo blogs.
But until then, it might be a good starting point to ask those of us, who already have a T410s/T410/T510.
So I just start right away:
MODEL:                   T410s (NUK39GE / 2912-39G)
used GPU:              Intel GMA 5 / QM57
DP->DP-video:       not tested
DP->DP-audio:      not tested
DP->HDMI-video:  tested->not working
DP->HDMI-audio: tested->not working
As I said, I was only able to test it at my local Lenovo dealer and I gave up after around 1 hour of testing. So it might be, that someone who has more time and resources (different adaptors) might be able to get it running.
So to all of you out there with a new Tx10(s), please take the time, find your next HDMI-TV and try it.
And to Lenovo: as long as there is no official statement concerning this, I will keep asking for an official response ;-) (and THIS time, don't blame the chipset, as the new Intel-Calpella has all the HD-video/audio goodness one could ask for: wiki article on Intel Calpella and its DP features).
Thanks for reading all this!

Answer 1

Hello all,
please check out this thread too.
Where Ken (Lenovo staff) explains this feature and possible problems.
I would suggest to do a forum search before starting another thread.
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