Graphics
Intel® graphics drivers and software, compatibility, troubleshooting, performance, and optimization
20869 Discussions

Stereoscopic 3D

TRobert
Beginner
3,051 Views

Hi,

 

A few weeks earlier I submitted a question about a Stereoscopic 3D problem on a Lenovo T470 laptop. This was the question: 

https://community.intel.com/t5/Graphics/Stereoscopic-3D/m-p/1483623#M117366

Sorry for the late response, but unfortunately I don't have a 3D TV, and I couldn't try it earlier, only now.

You suggested that I should update the graphics driver. I tried it, but it says it is locked to manufacturer specifications. I couldn't find newer driver on the Lenovo website. Is there anything I can try?

I heard that something is wrong with Intel graphics and HDMI 2.0 and the Stereoscopic 3D is working only with HDMI 1.4. Could it be the problem? If it could, is there a solution?

 

Thanks,

Robert

0 Kudos
11 Replies
raidboy
Beginner
3,039 Views

Thanks for your initial tread and the Intel support person answering to it about the 12th gen, and that 3D was not supported anymore there. I just posted how dismayed i am about that decision.

Wrt to your older Lenovo:

The problem with the older Intel iGPU is that they do not support HDMI natively, but only via displayport. So the HDMI ports are realized via so-called "LSPCON" chips that convert displayport to HDMI. When the Intel NUC PCs with that 7th generation CPU came out, Intel did actually later provide firmware upgrades to the LSPCON in their NUCs so that 3D mode was working. Don't expect that to happen now for an LSPCON in an old Lenovo Notebook. Of course, you can look for firmware and the like on Lenovo support.

I would recommend you buy a USB-C to HDMI adapter, which is known to support 3D and give that a try. For example:

https://www.club-3d.com/en/openpdf/2449_1/pdf/cac_2504_specification_sheet_en.pdf/

Which 3D TV do you use ?

0 Kudos
TRobert
Beginner
3,033 Views

Thank you for your answer. So the laptop's HDMI port is the problem? Would it work with a DisplayPort (laptop) - HDMI (TV) cable? Or just the solution you mentioned?

I'm using an older LG OLED TV.

0 Kudos
raidboy
Beginner
3,026 Views

I proposed to try an adapter for the usb-c port because that port is directly on the T470. If you want to use the DP port on the docking station, that should work equally well. This one for example:

 

https://www.club-3d.com/en/openpdf/2442_1/pdf/specification_sheets_cac_1080_en.pdf/

 

Of course, there can still be Intel driver issue,  i have no intel box with DP, it is working on an AMD box i have though.

0 Kudos
TRobert
Beginner
2,997 Views

Thank you, I will try it when I will have an opportunity.

0 Kudos
TRobert
Beginner
2,882 Views

Unfortunately it didn't work. I tried the docker's displayport and also tried a USB-C travel hub's HDMI port, but none of them sent 3D signal to my TV. Looks like I won't be able to view 3D movies with that laptop 😞

0 Kudos
raidboy
Beginner
2,880 Views

This is for your i7-7600U notebook ? (the i1245 CPU intel driver dies not support 3D).

I have a i5-7260u miniPC connected to a Panasonic 3D TV. Works fine. But notebook of course always has a couple more possible issues.

Do you see the option to enable 3D in the Windows 10 system settings / display ?

Which 3D TV do you use ? With a 3D capable TV connected, the 3D setting will not show up in windows 10 settings.

Did you completely disable the NVidia driver in device manager to ensure that this does not get in the way ?

Did you try to disable for windows the notebook LCD and only use the external TV ?
(no idea if this helps for 3D, but its always useful not to stress the poor driver with multiple displays first 😉

Which DP->HDMI Adapter did you try on your dock ?

Which application where you planning to use for 3D ?

 

0 Kudos
TRobert
Beginner
2,877 Views

Yes, it is that notebook.

I see the 3D option in windows, but it doesn't send 3D signal to the TV.

I use an older LG OLED TV (I don't remember the exact type) with HDMI 2.0 port.

I don't have nvidia card in that machine, only the integrated Intel card.

Yes, I tried to use only the TV, but it didn't help.

I used a DP-HDMI cable, not an adapter.

I use powerdvd19, but with the laptop's own HDMI port, when I turn on 3D in windows, it immediately send the 3D signal. The other solutions don't send.

0 Kudos
raidboy
Beginner
2,872 Views

"I use powerdvd19, but with the laptop's own HDMI port, when I turn on 3D in windows, it immediately send the 3D signal. The other solutions don't send."

So the TV set indicates that it has 3D signal once you switch that on in windows ?

What is then not working ?

Are you trying to play a 3D Blu Ray from an external Blu Ray drive ?

 

0 Kudos
TRobert
Beginner
2,848 Views

The TV switches to 3D mode when I use the laptop's HDMI port, but that is not working correctly, the 3D image is wrong (this is the original problem).

When I tried the dock's Displayport or the travel hub's HDMI port, the TV did not switch to 3D mode at all.

I tried different movies, 3D blu ray and half-ou formats as well. 

0 Kudos
raidboy
Beginner
2,836 Views

Alas, for any further diagnosis you would have to describe what/how the 3D image from the HDMI port are "wrong". A photo from the display might help too.

I was not aware the PowerDVD could play back in 3D half-ou or other rip images. I thought it only could play actual 3D BD.

If you have those rip files, you may want to try PotPlayer. It does have a lot of options though.

I would also recommend to first set your external HDMI port resolution exactly to 1920x1080@24Hz, and only then switch on 3D mode. In the windows setting, you need to check what it shows for desktop resolution as well as for video signal. to be the same.

For example if the setting was 1920x1080@60Hz when you enable 3D mode, then the driver could be buggy and try to do 3D 1920x1080@60Hz - which does not work for TV sets.

0 Kudos
TRobert
Beginner
2,795 Views

I use that resolution. I can't really describe what is wrong with the 3D image. When I pause the playback, it seems correct, but during playback it looks like everything has wrong depth. 

0 Kudos
Reply