yoga-linux (WIP)

• Run Linux on the Lenovo Yoga 7 Gen 7 14" (14ARB7) with AMD Ryzen 6600U / 6800U (Rembrandt)
• This guide will be using Fedora Workstation 37 with the GNOME (43) desktop environment

For more information take a look at the issues

Note: In some cases devices with a Kioxia SSD installed can get bricked while installing Linux if the firmware does not get updated via Windows beforehand! See #7.

Wiki links:

• This project
• Arch Wiki

Latest Fixes:

Kernel independent:

• [x] S4 sleep | Hibernating (guide is still missing)
• As an alternative for S3 sleep, S4 sleep can be made use of (requires a SWAP partition).
• [x] Screen rotation (see here)
• Automatic rotation does not work out of the box in GNOME for some reason.
• Can be fixed with an extension and iio-sensor-proxy.

Kernel 6.1+(see here):

• [x] Microphone is working
• [x] S2Idle is working
• Laptop seems to reliably go to this state (and is also waking up without issues for most laptops).

Kernel 6.0+:

• [x] Keyboard works without patching

Partially Fixed:

Kernel independent:

• [x] Speakers (see here)
• Switch to the bottom firing woofers makes the sound bearable, having all 4 speakers working in parallel is still WIP.
• [X] GRUB scaling
• Because of the 2.8K display the text in GRUB is very small and hardly readable.
• This can be partially fixed by using a GRUB theme that forces a font size, or manually configuring GRUB.

Remaining Issues:

• [ ] Speakers quality
• Even after both 4 speakers get working all together, another challenge will be tune them to sound like they do in Windows with Dolby.
• [ ] Issues with some USB-C docks
• Better support will probably come with Kernel 6.2
• [ ] S3 sleep | Suspending
• No option for regular S3 sleep support. There seems to be no support for this by Ryzen 6000/Rembrandt so there is no fix insight :(
• [ ] Fingerprint Sensor
• Very much work in progress; But some promising stuff to look into: libfprint-goodixtls copr repo.

Remaining issues that don't seem to impact all Yoga 7 Gen 7 users:

• [ ] Waking up from hibernation often needs longer than a reboot/regular system start

• [ ] Cursor jumps around the screen

  • This is caused by PSR (Panel Self-Refresh), and can be worked around using amdgpu.dcdebugmask=0x10 as a kernel parameter
  • This value is documented here

• [ ] System crashes after resuming

  • Yoga laptops with Samsung SSDs may become unstable after resuming from s2idle
  • This is a firmware bug in the SSD (PCI ID 0xa80b)
  • This issue is better documented here

Useful links:

Resources:

• More on sleep states: https://www.kernel.org/doc/Documentation/power/states.txt
• Tablet mode fix: https://github.com/alesya-h/linux_detect_tablet_mode

Relevant patches:

• Microphone:
  • https://lore.kernel.org/all/20220920201436.19734-3-mario.limonciello@amd.com/
  • https://bugzilla.kernel.org/show_bug.cgi?id=216299
• s2idle: https://lkml.org/lkml/2022/9/21/1207
• Keyboard: https://patchwork.kernel.org/project/linux-acpi/patch/20220712020058.90374-1-gch981213@gmail.com/

If you have any more information, other issues or noticed mistakes - feel free to open an issue. Thanks :)