[Bug 2084191] Re: [X1E] Request: Add support for Lenovo Yoga Slim 7x

[Cameron VanNatta]

I experimented with the Ubuntu 26.04 Snapshot 3 and there's significant compatibility improvements.
Source: https://cdimage.ubuntu.com/ubuntu/releases/26.04/snapshot-3/

1. The Snap Store no longer crashes on startup and finally works.
2. Audio works out of the box now, including microphone.(but has issues I'll explain later)
3. Docking station works, but my dock supports 2 external monitors - Ubuntu shows them as a single monitor.
4. Firefox reports hardware accelerated video decode support for H264, VP9, and HEVC.
5. Bluetooth works, but haven't thoroughly tested it beyond a minute of audio from a headset.

I did not need *any* firmware from my Windows partition to set up this
laptop.

Remaining issues:
1. Sound - The two woofers and two tweeters are reported as 4 speaker surround sound. As a result stereo audio only plays out of the woofers which makes the sound significantly less clear. This sounds identical to applying the steps in comment #270. With some luck, I can create a wireplumber profile to make stereo audio come out of both sets of speakers, but with the tweeters being more sensitive I am worried about damaging them. Part of me wonders if Asahi Linux's speakersafetyd would make sense on laptops like these. I am not a programmer so I cannot answer that.
2. Webcam is still nonfunctional. 
3. Standby is likely still not working fully - I have only experimented with it today so I cannot yet determine how fast battery drains.

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https://bugs.launchpad.net/bugs/2084191

Title:
   [X1E] Request: Add support for Lenovo Yoga Slim 7x

Status in ubuntu-concept:
  Confirmed

Bug description:
  Add support for the Snapdragon X Elite powered Lenovo Yoga Slim 7x

  === Device Information ===

  Manufacturer: LENOVO
  Product Name: 83ED
  Version: Yoga Slim 714Q8X9

  === Kernel + DTB ===

  Live environment and installation work.

  === Known Issues ===

  1) Unable to boot with secure boot enabled
  Workaround: Disable secure boot using FN+F2 during device boot

  2) Blank screen on installer boot up
  Workaround: Restart manually with power button. May take up to 2 reboots to resolve.

  3) Initial GNOME installer window broken/flickering
  Workaround: set display scale to 100% (settings->displays)

  4) Install along side Windows fails on Bitlocker enabled error
  Workaround: Reboot and install with manual partitioning

  5) Keyboard not functioning in Grub boot menu post installation
  Fix: See possible and unverified fix in comment from Carlo Lazzerini dated 2024-10-21
  Workaround: Wait for the time to run out and the default (Ubuntu) item will execute. Use FN+F12 to pick between Windows/Ubuntu using BIOS boot menu

  6) Video card functioning slowly and battery indicator not working
  Fix: install firmware with qcom-firmware-extract manually

  7) Firmware install failing with Bitlocker encrypted Windows volumn
  Workaround: Manually mount Windows volume with GNOME Files app

  7) Bluetooth not functioning
  Fix: None

  8) Sound not functioning
  Fix: None for laptop
  Workaround) Attach an external audio device (eg. usb headphones)

  9) External display not detected
  Fix: None

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