After a week of much trouble trying to install several linux distros I was now successfull installing Ubuntu 15.04 on my brand new W541 with a very simple approach:
I first start the live system with the boot parameter "nomodeset". In the live system I could then install ubuntu without any further hacks and the install system seems to run very good.
The boot parameter acpi=off seems to be not good choice for ubuntu, because it disables the keyboard.
Salvatore, thank you very much for that post!!!
After a week of much trouble trying to install several linux distros I was now successfull installing Ubuntu 15.04 on my brand new W541 with a very simple approach:
I first start the live system with the boot parameter "nomodeset". In the live system I could then install ubuntu without any further hacks and the install system seems to run very good.
The boot parameter acpi=off seems to be not good choice for ubuntu, because it disables the keyboard.