10-30-2017 10:04 AM
I have a Thinkpad P50 which is relatively new. I did have it connected through the Lenovo port replicator to two monitors using display port cables. The Video suddenly went black, and no amount of undocking, docking, and rebooting would get the montors to reconnect. I tried to connect directly from the laptop to an external monitor tha had previously worked using a hdmi to VGA adapter, but still no external video. It will not detect any external monitor connected to it and using FN F7 does not allow me to duplicate or extend or connect to an external device.
Any thoughts? Could some driver or setting be disabled?
Solved! Go to Solution.
01-02-2018 05:17 AM
I discovered that the issue was a Windows 10 update. My monitors were working fine until a MS patch was installed and overwrote my drivers. I had to reinstall the correct drivers for my laptop from Lenovo. This corrected the issue.
01-10-2018 04:53 PM
Which drivers need reinstalling? I tried updating the thunderbolt software to version 25 but it wouldn't let me because it can't detect any thunderbolt hardware.
My thunderbolt display won't work (apple thunderbolt with usb-c adapter), nor will my vga monitor (with a HDMI adapter), but they both worked three days ago before I installed a Lenovo update.
05-26-2018 12:03 PM - edited 05-26-2018 12:26 PM
I am still experiencing this problem. Nothing seems to work. External Monitor remains blank. NVIDIA Control panel can only idetify the external Monitor. Settings shows internal monitor as connected to Intel graphics card. Cannot install Intel Graphics drivers.
05-29-2018 06:57 AM
When my Lenovo P50 is docked, it will not recognize the dual external displays.
That is to say, when it doesn't get locked up when docked.
I've tried updating dirvers to no avail.
I've run into this issue using the latest Fedora install (as well as prior versions).
Then, I installed Ubuntu and same issue, no external display recognition when docked.