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askiiart-net/blog/elitebook-g1q/the-arm-saga-part-1.md
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add arm saga part 1
2025-07-08 17:53:24 -05:00

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The ARM saga: part 1

Progress update and guide

Turns out in the time I was looking away, 1) the Elitebook got added to the mainline kernel (somewhere in the 6.16 release candidates), and 2) Ubuntu released an updated Snapdragon Concept image - and not just that, I managed to find new builds. Unfortunately, the version of Ubuntu I tested doesn't support it yet, but it's a good start.

To work around this though, you can just add in the Elitebook device tree manually (I stole borrowed it from the postmarketOS package linux-postmarketos-qcom-sm7635 and copied it to the drive), then updated the grub config file:

  regexp "HP EliteBook Ultra G1q 14.*" "$system_product_name"
  if [ $? == 0 ]; then
    cmdline="clk_ignore_unused pd_ignore_unused cma=128M"
    dtb="devicetree /casper/dtbs/x1e80100-hp-elitebook-ultra-g1q.dtb"
  fi

I'm still gonna give Ubuntu flak for making new builds without actually changing anything meaningful, though. At this point, the mainline kernel has had better compatibility for over a month.

What's broken

Out of some quick testing, these things were still broken:

  • Wifi
  • Battery level
  • Audio
  • Processor isn't listed in GNOME settings for whatever reason

Based off the Postmarket OS page for the ASUS Vivobook S 15, I wouldn't be surprised if video hardware encoding/decoding was broken too.

But for the most part, it's working as far as I've seen - at least, not crashing. There's certainly some errors in journalctl, ones that I might not report because Ubuntu's bug reporting is horrible, but it works.