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dalexop
Blue Screen Again
Posts: 10
Registered: ‎06-02-2009
Location: Toronto
Views: 3,571
Message 1 of 4

ThinkPad X1 Carbon HDMI & Mini Display Port Screen Resolution maxes out at 1920 x 1080

Hi folks,

I have a 20BT0018US model and it has a native HDMI port & a Mini Display Port

 

The Specifications for this Model state:

Your computer supports the following video resolution, if the external monitor also supports that resolution.

• Up to 1920 x 1200, with an external display connected to the VGA connector

• Up to 2560 x 1600, with an external display connected to the mini DisplayPort connector

• Up to 4096 x 2160, with an external display connected to the HDMI connector

 

I have attached two different HDMI cables to three different monitors.

Some were native HDMI, others had HDMI to DVI converters on them.

 

All scenarios result in a maximum screen resolution of 1920 x 1080

Althought the monitors support a greater screen resolution, I can't seem to get anything higher ??

 

Has anyone resolved this ?

Thanks

dalexop
Blue Screen Again
Posts: 10
Registered: ‎06-02-2009
Location: Toronto
Views: 3,425
Message 2 of 4

Re: ThinkPad X1 Carbon HDMI & Mini Display Port Screen Resolution maxes out at 1920 x 1080

Interesting Test Case.

I borrowed a Mini DisplayPort Adapter- VGA and tested with the same monitor that the HDMI cable is plugged into.

 

I received a screen resolution of 2560 x 1600 right away !

I switch back to HDMI and it goes down to 1920 x 1200.

 

So I know the Video Card is capable of higher resolutions.

 

The issue must be with the native HDMI port.

 

Is anyone aware of a Formware Bug for this ? Or maybe Windows 10 driver issue ?

 

Thanks

 

 

SeniorGuru
Posts: 2,719
Registered: ‎12-22-2008
Location: CA
Views: 3,420
Message 3 of 4

Re: ThinkPad X1 Carbon HDMI & Mini Display Port Screen Resolution maxes out at 1920 x 1080

The issue must be with the native HDMI port.

 

Or maybe the cable. Older spec HDMI cables may not be able to support resolutions above 1920x1200.

__________________________________________________
Cheers... Dorian Hausman • ca.gif English community
X1C6, E470, Y900s, [R.I.P. X1C2, T430s, TPT2, SL500, X61s, T60p, A21p, 770, 760ED... 5160, 5150... S360/30]
dalexop
Blue Screen Again
Posts: 10
Registered: ‎06-02-2009
Location: Toronto
Views: 3,405
Message 4 of 4

Re: ThinkPad X1 Carbon HDMI & Mini Display Port Screen Resolution maxes out at 1920 x 1080

Hey there

Thanks for your reply.

I tried two different cables.

1) HDMI to DVI

2) HDMI to HDMI with a ATI HDMI to DVI converter.

 

Two different monitors, two different cables.

 

The only test I have not tried yet is to try HDMI to HDMI native to the monitor.

This is my next use-case.
Smiley Happy

 

 

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