HP EliteBook 745 G5
|Fingerprint reader||Not working|
|Smart Card Reader||Working|
|Function Keys||Working (exception)|
|3G modem||Not working|
The last firmware is mandatory to modify the BIOS parameters. At the moment of writing this entry: 01.09.01 Rev.A. In upgraded BIOS, disable the secure boot to be able to load any boot loader.
From Windows, it's easy to force the UEFI priority: http://www.rodsbooks.com/refind/installing.html#windows
Be careful with rEFInd: https://www.reddit.com/r/archlinux/comments/cgkhop/help_refind_boot_manager_hangs_seconds_after/ In this specific case, avoid option scanfor internal.
System freezes randomly when the proper parameters are not loaded https://www.reddit.com/r/linuxhardware/comments/afktfv/linux_freezes_and_amd_2500u_chipset/
Recommended kernel options:
acpi_backlight=vendor idle=nomwait amdgpu.gpu_recovery=1 amd_iommu=pt audit_enabled=0
To avoid any problem, make sure
amdgpu has been set as the first module in the Mkinitcpio#MODULES array, e.g.
MODULES=(amdgpu radeon). Take care as the original EFI partition could have not enough space for amdgpu and radeon modules.
Works perfectly with Smartcards for more info.& . Read
Usual function keys work out of the box. Keyboard Backlight controls work out of the system, so it is perfectly working in Linux. However, rare keys as telephone or calendar are not assigned to anything. You can remap using udev. For example, the call key can be remapped as an insert key by creating /etc/udev/hwdb.d/90-custom-keyboard.hwdb that contains this: