DisplayPort Issues

Message

miketoro · #1 Post by **miketoro** » Sat Jan 29, 2011 2:45 pm

So I'm gathering that DisplayPorts on Thinkpads don't do audio?

Not cool.

I found this thread, which is rather old now, and that's the conclusion.

Does anyone know if this has changed? Please tell me that's changed and I'm just doing something wrong ...

I have a T400s running to a 1080p TV via a DisplayPort to HDMI adapter and HDMI cable.

There is no sound (problem No. 1) and the image does not fill the whole screen (problem No. 2).

Is there a way to get audio through the TV with this rig?

Is there a way to get a full 1080p image?

Thanks for the help,

Mike

#2 Post by **lead_org** » Sun Jan 30, 2011 5:09 am

T400s, T500, R500, W500 displayport only supports video signal, this is a hardware limitation. There are expensive converter box out there to merge additional digital audio channel with the digital video channel into another displayport channel that supports both audio and video.

Are you using 1080p resolution in your T400s? or are you using different resolutions?

miketoro · #3 Post by **miketoro** » Sun Jan 30, 2011 9:19 am

Rats. Thanks for the info.

The ThinkPad resolution is at it's highest available to me: 1440x900 ...

Colonel O'Neill · #4 Post by **Colonel O'Neill** » Sun Jan 30, 2011 11:22 am

Are you duplicating the display, extending the display, or outputting external only?

miketoro · #5 Post by **miketoro** » Sun Jan 30, 2011 8:29 pm

Colonel O'Neill wrote:Are you duplicating the display, extending the display, or outputting external only?

I've tried all three with the same results, but the ultimately I'd like the TV as an extended display in full 1080p ...

#6 Post by **lead_org** » Sun Jan 30, 2011 9:27 pm

what OS are you using?

miketoro · #7 Post by **miketoro** » Mon Jan 31, 2011 3:04 pm

lead_org wrote:what OS are you using?

Windows 7 Ultimate 64

Would the same DisplayPort lack of audio apply if I plugged it into a Mini Dock or Mini Dock Plus?

http://www.thinkwiki.org/wiki/ThinkPad_ ... k_Series_3

http://www.thinkwiki.org/wiki/ThinkPad_ ... s_Series_3

#8 Post by **lead_org** » Wed Feb 02, 2011 5:01 am

the lack of audio in the displayport is limited by the intel chipset, using the dock as mentioned by you won't do anything to change that.

Also, try to change the external LCD resolution using the intel display driver to see whether you can get the correct 1080p resolution.

miketoro · #9 Post by **miketoro** » Wed Feb 02, 2011 11:56 am

lead_org wrote:the lack of audio in the displayport is limited by the intel chipset, using the dock as mentioned by you won't do anything to change that.

Also, try to change the external LCD resolution using the intel display driver to see whether you can get the correct 1080p resolution.

Thanks for your help. I did play with the Intel driver, with no luck. I ordered another adapter and will report back whether that changes anything ...

EDIT: New adopter, nothing happened.

DisplayPort Issues

DisplayPort Issues

Re: DisplayPort Issues

Re: DisplayPort Issues

Re: DisplayPort Issues

Re: DisplayPort Issues

Re: DisplayPort Issues

Re: DisplayPort Issues

Re: DisplayPort Issues

Re: DisplayPort Issues

Who is online