HCL - Lenovo P14s (AMD Ryzen 7 Pro 4750U)

[Josef Johansson]

Fix reboots on suspend:

* activate Linux as type of OS in BIOS (enables S3 instead of S2idle)

* add acpi_sleep=nonvs in GRUB_CMDLINE_LINUX in /etc/default/grub

* smt=on seems to help

Boot is a bit slow, but doing this after boot solves that, it's possible to set under GRUB_CMDLINE_XEN_DEFAULT with dom0_max_vcpus=2 dom0_vcpus_pin but it seems that vm get this as well.

* sudo xl vcpu-set Domain-0 2

* sudo xl vcpu-pin Domain-0 0 0

* sudo xl vcpu-pin Domain-0 1 1

Running Qubes R4.1 with kernel 5.11.4-1.fc32.qubes.x86_64 and linux-firmware 20210208-106

On install add console=vga=none dom0_max_vcpus=2 dom0_vcpus_pin to grub

Use Debian 11 for template VMs since Debian 10 is broken (at time of writing) as network-vm.

Wireless works in Fedora 33, but not out of the box in Debian 11.

Overall there's still a bit sluggishnes from time to time. Pinning all VMs to cores helps.

Dual 2K screens acheived via 2x DP to USB-C adapter, multiport adapters does not work (single DP).

What does not work:

* Webcam

* MST

Not tested:

* Bluetooth

[Sven Semmler]

Hi Josef,

thank you for sending your HCL report. It is now part of this pull request:

https://github.com/QubesOS/qubes-hcl/pull/53

... and will be merged into the website soon.

/Sven

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public key: https://www.svensemmler.org/0x8F541FB6.asc
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[Josef Johansson]

Hi,

I applied clocksource=tsc tsc=unstable hpetbroadcast=0 https://github.com/QubesOS/qubes-issues/issues/6055 to my grub xen cmdline and the laptop is smooth as butter and really fast.

No need for dom0_max_vcpus=2 or dom0_vcpus_pin.

Managed to get the webcam working as well.

I'm quite satisfied with the 2xDP dongle so won't test out MST further, it may or may not work.

It's a TPM 2.0 chipset which needs secure boot to work. I don't have the time to work that out, so maybe TPM works? :) I will try in XEN 4.15 :)

Most function keys works (it seems that disable wifi does not work), not sure how to test F10-F12 (phone-related and bookmark?)

Backlight on keyboard works.

Quite satisfied, the machine is _fast_.

[Thomas Zelch]

Hi Josef,

I've just received my P14S and you saved me from a lot of headaches :)

For anybody else getting one of these, the following 4.1 ISO from OpenQA worked perfectly as install media:

https://openqa.qubes-os.org/tests/16831/asset/iso/Qubes-20210327-x86_64.iso

It comes with kernel 5.10.25 but after adding the Parameters mentioned by Josef it's as fast as one would expect.

I've yet to test suspend / resume, so cannot say anything about that.

Thanks to Josef and the awesome Qubes community!

[Josef Johansson]

No problem.

I've been trying to get suspend/resume working properly for a while now.

It seems that the machine resumes, but there is something stalling CPUs such that VMs can't be started properly.

If you try it out please let me know.