Thinkpads Forum

Hi all...

I've been running my T400 on a dock since I got it, and everything's been set up in the Presentation Manager so that external video is turned on when docked. No special video-related power settings.

This has worked fine, until recently. Now, when I turn on the T400 in the dock, I get external video. But as soon as I log on, it turns off and switches to the laptop LCD.

HOWEVER, if I open the laptop lid, video switches back to external video and turns off the LCD.

It's exactly the opposite of what it should be doing.

Anyone see this before? I'm wondering if it's a BIOS setting gone bad.

- Tim

More likely a software setting.

Just force it to whatever you want it to be, it might override whatever wrong settings it remembers.

dr_st wrote:More likely a software setting.

Just force it to whatever you want it to be, it might override whatever wrong settings it remembers.

Just tried it - nope, didn't work. When I put the computer (in dock) to sleep, then wake it up, I see the login screen on the external monitor. When I log in, it reverts to displaying on the LCD.

Very bizarre.

- Tim