Using the webcam on zbook ultra g1a, Linux (ubuntu 25.04)

[Lieall]

hello.

I have purchased and am using a laptop (zbook ultra G1A).

Of course, the default OS for that laptop is Windows 11, and I know that everything works fine on Windows 11.

My job requires me to use Linux quite a bit in addition to Windows, so I installed Linux via dual boot.

However, recently, after installing Linux, I was checking the status of my devices and noticed that my webcam was not working.

Is it installed correctly, or is there a Linux distribution or version that is optimized for this HP laptop, and if so, is there a driver or software installation that might fix the problem? I'll leave the product and Linux version information I'm using below.

- Laptop: HP ZBOOK ULTRA G1A (AMD RYZEN AI MAX 395+, 64GB)
- Linux distribution: Ubuntu 25.04
- Kernel: 6.14.3 (latest)

[tineidae]

Hi,

the camera in your g1a is not a normal usb camera, it uses isp for better performance. You can find open source drivers here:

https://github.com/amd/Linux_ISP_Kernel/tree/4.0

https://github.com/amd/Linux_ISP_libcamera/tree/3.0

But installation is not trivial, lets hope that the kernel driver gets mainstreamed into the kernel and userspace tools get adopted in one of the next Ubuntu releases.

The g1a is only certified on Ubuntu 24.04. LTS with Ubuntu OEM Kernel, but i dont think certification covers the camera.

https://ubuntu.com/certified/platforms/15242

[tineidae]

AMD SPI mainstream in Kernel 6.16. It is planned to use 6.16. as Kernel for Ubuntu 25.10. That should give us a much better our of box experience.

https://www.phoronix.com/news/Linux-6.16-SPI

[jecuendet]

Kernel 6.16 rc1 is out

How to test the camera of my HP Zbook Ultra G1a?

Thanks for guidance

[tineidae]

Looks like, we have to wait a little longer.

https://www.phoronix.com/news/AMD-ISP4-Linux-v2-Driver

[jecuendet · Accepted solution]

It is working with the oem kernel!

It's written in the mentionned article: https://www.phoronix.com/news/AMD-ISP4-Linux-v2-Driver

I installed:

apt install linux-image-6.14.0-1004-oem  fdutils linux-headers-6.14.0-1004-oem

[DougLaptop]

(Disregard)

[jecuendet]

I run Ubuntu 24.04 with kernel linux-image-6.14.0-1004-oem and everything works well:

- Radeon driver

- Cemera driver

- Sound, builtin and bluetooth connected

Only the wifi doesn't resume well. I need to remove and re-add the mt7925e driver after suspend/resume.

I tried the kernel linux-image-6.14.0-1007-oem which corrects the wifi problem, but then I have GUI freeze : https://bugs.launchpad.net/ubuntu/+source/linux-oem-6.14/+bug/2115969

[DougLaptop]

For what it's worth, I just tried the 6.14.0-1006-oem kernel with the otherwise stock Ubuntu 24.04b from HP.

I too had the system GUI lock up within a few minutes. The mouse would move, but nothing else would work. I could not even suspend the laptop either with the power button or the lid. I had to hard boot it.

I was not at home so I could not test if I could ssh in.

[jecuendet]

I have exactly the same freeze with all the recent kernels I tried, except oem-1004 and stock kernel (which doesn't really support this laptop)