HP EliteBook 840 G1

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Hardware
PCI/USB ID
Working?
GPU (Intel)
Yes
GPU (AMD)
Yes
Ethernet
Yes
Wireless
Yes
Bluetooth
Yes
Audio
Yes
Touchpad
Yes
Webcam
Yes
Fingerprint reader
Yes
Memory card reader
Yes
Smart card reader
Yes
Configuration
UEFI Setup
Note
Make sure you have the latest HP
UEFI
firmware installed.
Even if
UEFI
,
Arch Linux
and (e.g.)
GRUB
are correctly configured and with the correct UEFI NVRAM variables set, the system will not boot from the HDD/SSD. The problem is that HP hard coded the paths for the OS boot manager in their UEFI boot manager to
\EFI\Microsoft\Boot\bootmgfw.efi
to boot Microsoft Windows, regardless of how the UEFI NVRAM variables are changed. There are two workarounds:
Using the "Customized Boot" path option (recommended)
The latest HP firmware allows defining a “Customized Boot” path in the UEFI pre-boot graphical environment.
Select the “Customized Boot” option in the UEFI pre-boot graphical environment under “Boot Options” and set the path to your OS boot loader on the ESP (see
EFI system partition
), e.g.:
\EFI\grub\grubx64.efi
Always verify the correct path to the
.efi
file. Also, adjust the device boot order (also in the UEFI pre-boot graphical environment) to boot this entry first.
Change the OS boot loader path to match the hard coded path
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Note
If you are trying to boot on a the mSATA port (m.2 SSD), this is the only working method.
This method is not recommended, as it will create conflicts in a dual boot setup with Microsoft Windows. Also, every time you install GRUB, you have to remember to copy it to the hard coded path.
Change the UEFI application path of the OS boot loader to that hard coded path.
On your
EFI system partition
; e.g. with
esp
being the
EFI system partition
mountpoint:
# mkdir -p
esp
/EFI/Microsoft/Boot
# cp
esp
/EFI/grub/grubx64.efi
esp
/EFI/Microsoft/Boot/bootmgfw.efi
or
# mkdir -p
esp
/EFI/BOOT
# cp
esp
/EFI/grub/grubx64.efi
esp
/EFI/BOOT/BOOTx64.EFI
Encryption
This notebook supports
HDD FDE (SED)
. The HDD/SSD can be locked by setting a password in the UEFI pre-boot graphical environment under the option "DriveLock" (this requires setting a password for the UEFI pre-boot graphical environment first). If you replace the HDD/SSD, make sure to get a compatible one to make use of this feature.
Otherwise, see
Disk encryption
for software-based encryption.
AMD Graphics
In order to get the dedicated AMD graphics card to function properly, install
AMDGPU
first.
Set the following kernel parameters:
amdgpu.si_support=1 radeon.si_support=0
.
Now, any application run with
DRI_PRIME
(as described for using
PRIME
) is using the dedicated GPU.
Audio
For HDMI Audio you need
CONFIG_INTEL_IOMMU_DEFAULT_ON=n
in your kernel config (see
https://bugzilla.kernel.org/show_bug.cgi?id=61471
). In some cases, you will need
options snd-hda-intel enable=1,1,0
in
/etc/modprobe.d/snd-hda-intel.conf
. This will prevent freezes caused by hdmi audio cards conflicting.
Resume / wake on lid open
This feature needs to be enabled in the UEFI setup:
Advanced > Built-in device options > Wake unit from sleep when lid is opened
Enable the microphone muting key
If your mute mic key (
Fn+F8
) does not work, you actually just need to remap this key manually.
Here is an example of how you can do this by adding a custom mapping file:
/etc/udev/hwdb.d/61-hp-mic-mute-hotkey.hwdb
evdev:atkbd:dmi:bvn*:bvr*:bd*:svnHewlett-Packard*:pn*EliteBook*:pvr*
 KEYBOARD_KEY_81=f20                          # Fn+F8 on Elitebook, map to F20
Note
It is strongly recommended to understand
scancodes to keycodes mapping
before doing this.
Then, you just need to
update the hardware database index
.
See also
Changing Boot Order on Dual Boot Windows 8 and Ubuntu
Setting GRUB as the default boot manager on a UEFI-based system
Activate mic mute function key, ubuntu 18.04, HP Elitebook 820