surface: linux 6.6.13 -> 6.7.6

[gitwah]

Description of changes

Things done

• Tested the changes in your own NixOS Configuration
• Tested the changes end-to-end by using your fork of nixos-hardware and
  importing it via <nixos-hardware> or Flake input

[onny]

Fixes #877

[onny]

Is it possible to build the kernel locally from inside the nixos-hardware repository? @stigtsp

this didn't work

nix-build -E "(import <nixpkgs> {}).callPackage ./microsoft/surface/common/kernel/linux-pac
kage.nix {}"

[mexisme]

Is it possible to build the kernel locally from inside the nixos-hardware repository? @stigtsp

this didn't work

nix-build -E "(import <nixpkgs> {}).callPackage ./microsoft/surface/common/kernel/linux-pac
kage.nix {}"

Because nixos-hardware tends to be trying to provide config at the machine-level, I've found it tricky to avoid running a build+install on real hardware.

Running the test suite def. catches things like syntax errors, but I personally also try to use nixos-rebuild build-vm on a faster machine, against a copy of the MS Surface's Nixos config, to pre-test it better.

If it builds at that stage, it's (so far) always been good enough to try installing on the Surface itself — which you'll ultimately have to do to check the kernel changes are working, of course!

[mexisme]

If you're not going to expose the 6.6.x .nix files, you may as well delete them, yeah?

In the past, @Mic92 has asked people to try to minimise the number of different kernel versions that have to be maintained for any particular hardware.

[Mic92]

Yeah, sound like a good idea.

[mexisme]

I'll try to build + test this on my Surface Go tonight (GMT+12)

[tracteurblinde]

Empty hash should be sha256-5InsDhNw0Im0RtVlre16aYCT0rfEEioY8h7bbvk9N9M=

Edit:
It looks like the linux-surface repo needs to be pulled forward as well to:

  linux-surface = fetchFromGitHub {
    owner = "linux-surface";
    repo = "linux-surface";
    rev = "arch-6.7.6-1";
    sha256 = "1f89xzzn11d25g70zqqj3ybk68g11m33qpmh0rj46nhh9bzlj4ya";
  };

With that the build advances to compilation (in progress as of this edit)

Edit 2: With those changes (see this commit) I am able to successfully compile and boot into 6.7.6. I am editing from a Surface Laptop Studio with this as a nixos flake input :) Passes ad-hoc testing on this device.

[iwanders]

Any chance we can bump this to arch-6.7.9-1? That pulls in linux-surface/linux-surface@852fcb1 which has improvements to the fan profiles on the SP9.

To cherry-pick (on top of @tracteurblinde 's commit); cf462d6

[Yusuf-Duran]

Any chance we can bump this to arch-6.7.9-1? That pulls in linux-surface/linux-surface@852fcb1 which has improvements to the fan profiles on the SP9.

To cherry-pick (on top of @tracteurblinde 's commit); cf462d6

not only that but also finally has working cameras again which would be nice to have

[iwanders]

Because nixos-hardware tends to be trying to provide config at the machine-level, I've found it tricky to avoid running a build+install on real hardware.

@mexisme , @onny Just though I'd share my workflow; what I do is from my flake;

nix build .#nixosConfigurations.<hostname>.config.system.build.toplevel -L

Then I push that result to my surface with nix copy --to "ssh://<username>@<hostname>" ./result. That allows me to build the kernel and other packages on my desktop at least, verifying it runs on the device is still necessary.

[stigtsp]

Since 6.7 is EOL, can this PR be updated to 6.8? I'm happy to test on my Surfaces :)

[Mic92]

Still working on this?