01-13-2015 09:22 AM
The Thinkpad referenced above is equipped with a HDMI interface. During a test to directly connect a LCD projector or an external LCD display or a TV via an HDMI cable, I found that no picture appeared neither on the projected screen nor the display not the TV (the external screens stay black). Trying to connect via a „Lenovo HDMI to VGA Monitor Adapter“ and using a VGA cable resulted in the same (at least on the projector).
What was done:
On the X1, expand or change screens via Win+P --> external projector, display or TV remain black (do not seem to receive a proper signal) while the X1 seems to recognize that an external display is connected (it correctly identifies the external screen in the screen settings).
The X1 is on the latest patching level (according to Lenovo System Update), all drivers installed. Patching the latest Intel Graphics 5000 driver did not work (it says its a vendor specific driver).
Even a dedicated installation of the external display driver on the X1 did not help or change anything.
I also tried different HDMI cables, no change.
I am lost of further ideas. Your help is much appreciated.
Solved! Go to Solution.
02-04-2017 11:06 AM
Update: The problem could only be resolved by getting a new motherboard installed. Ordered via Lenovo Support, replaced and its working. This was really a hardware issue.
06-10-2017 06:53 AM
These devices come per default with a long warranty period, so mine was replaced at no extra cost. The technician even came to my house to fix this on-site. No hassle, good service Lenovo!