Intel Arc Hardware encode AV1 on Ubuntu

[Kameleonten]

Description of problem or question:
What is missing in order to hardware encode AV1 in Handbrake using fresh install of Ubuntu LTS 22.04.3?
6+ weeks and no closer to get it to work. Tried it on Windows 11 and it worked out of the box.

Hardware
Ryzen 3900X
32GB Ram
Intel Arc A380 on top PCIe slot, no other cards installed.
BIOS has Resize BAR activated.

HandBrake version (e.g., 1.0.0):
Handbrake 1.7.2 Flatpak

Operating system and version (e.g., Ubuntu 16.04 LTS, macOS 10.13 High Sierra, Windows 10 Creators Update):
Ubuntu 22.04.3

[mduell]

An Activity Log is required for support requests. Please read How-to get an activity log? for details on how and why this should be provided.

[Kameleonten]

Activirty Log

OS: GNOME 45 (Flatpak runtime)
HandBrake 1.7.2 (2024010400)
Kernel: Linux 6.5.0-14-generic (x86_64)
CPU: AMD Ryzen 9 3900X 12-Core Processor x 24
Install Dir: /app/bin
Config Dir: /home/tobias/.var/app/fr.handbrake.ghb/config/ghb
_______________________________

[19:21:31] Compile-time hardening features are enabled
Cannot load libnvidia-encode.so.1
[19:21:31] qsv: not available on this system
[19:21:31] hb_init: starting libhb thread
[19:21:31] hb_init: starting libhb thread
[19:21:31] hb_init: starting libhb thread

[s55]

Make sure you have the flatpak Quicksync plugin installed (downloaded from handbrake.fr, not flathub)

[Kameleonten]

Installed Quicksync plugin and got a hole lot more on activity log

OS: GNOME 45 (Flatpak runtime)
HandBrake 1.7.2 (2024010400)
Kernel: Linux 6.5.0-14-generic (x86_64)
CPU: AMD Ryzen 9 3900X 12-Core Processor x 24
Install Dir: /app/bin
Config Dir: /home/tobias/.var/app/fr.handbrake.ghb/config/ghb
_______________________________

[20:28:48] Compile-time hardening features are enabled
Cannot load libnvidia-encode.so.1
[20:28:48] hb_display_init: attempting VA driver 'iHD'
libva info: VA-API version 1.13.0
libva info: User environment variable requested driver 'iHD'
libva info: Trying to open /app/extensions/lib/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_13
libva error: /app/extensions/lib/dri/iHD_drv_video.so init failed
libva info: va_openDriver() returns 1
[20:28:48] hb_display_init: attempting VA driver 'i965'
libva info: VA-API version 1.13.0
libva info: User environment variable requested driver 'i965'
libva info: Trying to open /app/extensions/lib/dri/i965_drv_video.so
libva info: va_openDriver() returns -1
[20:28:48] hb_display_init: attempting VA default driver
libva info: VA-API version 1.13.0
libva info: Trying to open /app/extensions/lib/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_13
libva error: /app/extensions/lib/dri/iHD_drv_video.so init failed
libva info: va_openDriver() returns 1
libva info: Trying to open /app/extensions/lib/dri/i965_drv_video.so
libva info: va_openDriver() returns -1
[20:28:48] hb_qsv_make_adapters_list: MFXVideoCORE_QueryPlatform failed impl=0 err=-16
[20:28:48] hb_display_init: attempting VA driver 'iHD'
libva info: VA-API version 1.13.0
libva info: User environment variable requested driver 'iHD'
libva info: Trying to open /app/extensions/lib/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_13
libva error: /app/extensions/lib/dri/iHD_drv_video.so init failed
libva info: va_openDriver() returns 1
[20:28:48] hb_display_init: attempting VA driver 'i965'
libva info: VA-API version 1.13.0
libva info: User environment variable requested driver 'i965'
libva info: Trying to open /app/extensions/lib/dri/i965_drv_video.so
libva info: va_openDriver() returns -1
[20:28:48] hb_display_init: attempting VA default driver
libva info: VA-API version 1.13.0
libva info: Trying to open /app/extensions/lib/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_13
libva error: /app/extensions/lib/dri/iHD_drv_video.so init failed
libva info: va_openDriver() returns 1
libva info: Trying to open /app/extensions/lib/dri/i965_drv_video.so
libva info: va_openDriver() returns -1
[20:28:48] qsv: is available on this system
[20:28:48] hb_init: starting libhb thread
[20:28:48] hb_init: starting libhb thread
[20:28:48] hb_init: starting libhb thread