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selmo2000
Blue Screen Again
Posts: 3
Registered: ‎08-26-2012
Location: United States
Views: 44,762
Message 1 of 44

T430: External display not detected when using integrated graphics

Hello,

 

I have a ThinkPad T430 with Nvidia dedicated graphics as well as Intel HD Graphics 4000 integrated graphics.  I recently ordered a Mini DisplayPort to HDMI cable from Monoprice which works great.  It carries audio and video to my TV without a hitch, but only when the Nvidia card is turned on in UEFI.  If I turn off the Nvidia card, the TV isn't even detected.  It's like the cable isn't even plugged in.  The Nvidia drivers, along with the Intel graphics drivers, are both installed.

 

My question is: How can I get the laptop to detect external displays through the Mini DisplayPort port when using integrated graphics?

 

Regards,

Mike

Retired Support Specialist
Posts: 444
Registered: ‎05-26-2012
Location: Raleigh, North carolina
Views: 44,630
Message 2 of 44

Re: T430: External display not detected when using integrated graphics

Hey Selmo2000,

 

Here is some info on your Mini Display port:

 

http://support.lenovo.com/en_US/downloads/detail.page?DocID=PD024597

 

Can you post your Driver version?

 

Best Regards,

 

Hiro

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selmo2000
Blue Screen Again
Posts: 3
Registered: ‎08-26-2012
Location: United States
Views: 44,620
Message 3 of 44

Re: T430: External display not detected when using integrated graphics

Hi Hiro,

 

The Intel HD Graphics 4000 driver version is 8.15.10.2761, which is the latest version provided by Intel.  However, before this I was using the version currently being offered by Lenovo (8.15.10.2696, downloaded from http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS029033 ), with which I had the bad behavior I described earlier.  I had hoped the upgrade to Intel's latest version would fix it, but that wasn't the case.

Retired Support Specialist
Posts: 444
Registered: ‎05-26-2012
Location: Raleigh, North carolina
Views: 44,615
Message 4 of 44

Re: T430: External display not detected when using integrated graphics

Hey Selmo2000,

 

I am currently working on your issue and have a T430 with a mini display port and have created your issue but before I go on and tell you that this is working as intended let me look around and see if I can find a fix or work around, I'll keep you posted.

 

Best Regards,

 

 

Hiro

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Did the post you read answer your question? Did someone help you figure out your problem? Hit Solution Provided and give that person a pat on the back for helping you out!
andreasbjork
What's DOS?
Posts: 1
Registered: ‎09-26-2012
Location: Finland
Views: 44,413
Message 5 of 44

Re: T430: External display not detected when using integrated graphics

Hi

 

Any news to share about this issue?

 

Regards

 

Andreas

selmo2000
Blue Screen Again
Posts: 3
Registered: ‎08-26-2012
Location: United States
Views: 44,401
Message 6 of 44

Re: T430: External display not detected when using integrated graphics

I still haven't gotten it to work.  :\

bufofrog
Paper Tape
Posts: 2
Registered: ‎10-09-2012
Location: Prague
Views: 44,248
Message 7 of 44

Re: T430: External display not detected when using integrated graphics

FWIW, I have a similar issue on Thinkpad Edge S430. It only has the Intel HD4000 graphics, and when using Windows, my external display connected via a HDMI cable is not detected at all.

 

This has to be a driver issue, because in Ubuntu 12.04, after updating to kernel 3.4, the external display works perfectly. (On the same machine, obviously.)

 

I have installed all available updates via the Lenovo Update tool as well as Windows update.

 

Is Lenovo aware of this problem and working on a fix?

 

EDIT: I have posted a separate thread in the Thinkpad S forums about this issue:

 

http://forums.lenovo.com/t5/ThinkPad-Edge-S-series/Thinkpad-Edge-S430-Windows-does-not-detect-extern...

marckk
Punch Card
Posts: 39
Registered: ‎08-12-2012
Location: Germany
Views: 43,970
Message 8 of 44

Re: T430: External display not detected when using integrated graphics

Any news on this topic?

Would be very interested in disabling the nvidia chip!
djsvetljo
Paper Tape
Posts: 3
Registered: ‎11-12-2012
Location: Chicago
Views: 43,820
Message 9 of 44

Re: T430: External display not detected when using integrated graphics

I have an Issue that I am sure is related - NO DVI out when docked. DVIs working fine with NVIDIA is enabled, but does not work with Intel HD4000. It seems like any digital ports are not working with the Integrated graphic. I hope that this is not a hardware limitation.
marckk
Punch Card
Posts: 39
Registered: ‎08-12-2012
Location: Germany
Views: 43,775
Message 10 of 44

Re: T430: External display not detected when using integrated graphics

Me to. When chosen integrated qraphics in BIOS, the minidisplay-port is not working at all. Truly hope that this is not a hardware problem. I should never have chosen the optimus version because of the intense heat generated => much more fan noise.

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