[Kernel-packages] [Bug 1292036] Re: Displayport on Thinkpad T420s is not usable

Computer: Lenovo Thinkpad T420 Ubuntu 16.10: Display port still don't work I am using a cable displayport to Hdmi with an asus screen with no displayport (but 2xhdmi) sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date 83et79ww (1.49) 09/05/2016 in the bios : Screen not found,

[Kernel-packages] [Bug 1430625] Re: ACPI PCC probe failed.

Mobo gigabyte GA-965GM-S2 (AHCI 1.07 [08.04.2006]) GC Nvidia GTX 460 GM Ubuntu 15.04 Kernel 3.19.0.16 Booting on AHCI ==> Boots fine if I use open source Nouveau driver ==> Boots fine but mentionning " [ 1.072944] ACPI PCC probe failed " if I use the NVIDIA 346.59 driver. If I go back to Nouvea