hardware problems like this are usually BIOS/Firmware related - nothing to do with Software. I am guessing that the BIOS does not correctly mirror the screen by default.
With this L540 - does the bios starting message etc come up on the external display at all? If not, it's for sure a hardware problem.
I don't see how you reached your conclusion.
BEFORE encryption is installed - when docked, with lid closed, on boot, external monitor display comes up,
AFTER encryption is installed - when docked, with lid closed, on boot, external monitor display does not come up, . Lid must be opened, encryption credentials entered and then lid can be closed and external monitor works.
I have double-checked BIOS settings.
We are in the process of upgrading to the latest version of encryption software.
Because, EEPC does not have any control over the hardware boot process of the machine - EEPC is software, so it comes after any firmware load.
Usually you turn a machine on, you get the POST messages etc, then the OS starts. EEPC becomes the OS on an encrypted machine.
So, EEPC has no influence on the joint monitor display prior to it's starting. if the POST messages display on both screens without EEPC, they will display on both screens with.
What I imagine is that for this particular model, the POST messages don't display on both screens?
Also, the fact you've proven that it works fine with other models of laptop just goes further to prove this is a laptop specific problem, since EEPC is software and behaves the same regardless.
I think you are right in upgrading - you posted in the EEM managed group which means the latest version you could be using is 5.2.13 which was due to go EOL last month - You may find it works fine with a more current version which was designed for more modern platforms.
thank you for the explanation. I'll let you know if the software upgrade makes a difference.
Unfortunately, the MEE upgrade didn't fix the problem.
one other interesting behavior - With machine docked, I attached a VGA monitor directly to the laptop - the external display does come up on boot
What version did you upgrade to?
I think as you have discovered this is a problem with the laptop unfortunately.
yes, I have sent this to Lenovo
Ah - you need to upgrade to a newer version - you're using a 10 year old product. You need to be working with 7.1 now.
upgrading the Lenovo L540 to BIOS v1.62 fixed the problem.