model: HP Pro 3420 AiO PC(model id: 2309)
subtype (notebook, netbook, motherboard, tablet):
not-specified
architecture:
x86-64/amd64
does it have a free boot firmware (BIOS,UEFI,...) ?
no
can free operating systems be installed?
yes
does the device prevent installing wifi cards not-approved by the vendor?
no
year of commercialization:
2011
compatibility with free software:
C-silver 
tested on:
Debian GNU/Linux 11 bullseye
tested with the following kernel libre:
6.0.0-6-amd64
video card model:
Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (works, but without 3D acceleration)
wifi model:
Qualcomm Atheros AR928X Wireless Network Adapter (PCI-Express) (it works)
Description:
Works fine, only was necesary disable modeset (disable 3D) with GRUB_CMDLINE_LINUX="nomodeset i915.modeset=0" in /etc/default/grub because it has a flickering in the screen with the 3D enabled in Debian
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