Connection failed

[siraben]

While packaging up rmview using Nix, I encountered the following error when I run it. The IP is live and SSH works. What could be the cause?

Please check your reMarkable is properly configured, see the documentation for instructions.

Connection failed: [Failure instance: Traceback (failure with no frames): <class 'twisted.internet.error.ConnectionRefusedError'>: Connection was refused by other side: 61: Connection refused.
]

[siraben]

I should note that this only happens when trying to build using Nix at rev e3a0384edf0fb05b9572be6813601d9bc8774de4
config.json

{
  "ssh": {
    "address": "10.11.99.1",
    "username": "root",
    "key": "~/.ssh/id_rsa",
    "timeout": 1
  },
  "orientation": "portrait",
  "pen_size": 10,
  "pen_color": "red",
  "background_color": "white"
}

[siraben]

Found the cause of the issue, the rM-vnc-server mxc_epdc_fb_damage.ko binaries on the rM had to be overwritten.

[anka-213]

Did you succeed at packaging this?

[siraben]

Yes, I did.

default.nix

{ pkgs ? import <nixpkgs> { } }:
with pkgs;

libsForQt5.callPackage ./rmview.nix { }

rmview.nix

{ stdenv, fetchFromGitHub, mkDerivationWith, python3Packages }:

mkDerivationWith python3Packages.buildPythonApplication rec {
  pname = "rmview";
  version = "1.0";

  src = fetchFromGitHub {
    owner = "bordaigorl";
    repo = "rmview";
    rev = "v${version}";
    sha256 = "1d90cdvwxhdx5m9pv7wdnkrywnxsjs73z2w3xgrcafviwlpyy857";
  };

  patchPhase = "substituteInPlace src/rmview/rmview.py --replace 'from . import resources' ''";

  preFixup = ''
    makeWrapperArgs+=("''${qtWrapperArgs[@]}")
  '';

  propagatedBuildInputs = with python3Packages; [
    pyqt5
    paramiko
    twisted
  ];

  meta = with stdenv.lib; {
    homepage = "https://github.com/bordaigorl/rmview";
    description = "Library to get the currently playing song and artist from Spotify";
    license = licenses.mit;
    maintainers = with maintainers; [ siraben ];
    platforms = platforms.unix;
  };
}

[anka-213]

Thanks!

[anka-213]

Hmm, I get a segfault:

  copying src/rmview/viewer.py -> build/lib/rmview
  copying src/rmview/rmparams.py -> build/lib/rmview
  copying src/rmview/__init__.py -> build/lib/rmview
  copying src/rmview/connection.py -> build/lib/rmview
  copying src/rmview/rfb.py -> build/lib/rmview
  copying src/rmview/workers.py -> build/lib/rmview
  copying src/rmview/__main__.py -> build/lib/rmview
  installing to build/bdist.macosx-10.6-x86_64/wheel
  running install
  /nix/store/31g9w6f5nmbcqjllx6cflazaxh7f3008-setuptools-setup-hook/nix-support/setup-hook: line 17:  2730 Segmentation fault: 11  /nix/store/65gmh01007csxmd6bbkvas8zkhlw0k7n-python3-3.8.6/bin/python3.8 nix_run_setup bdist_wheel

Do you have any clue why?

[siraben]

Interesting. What platform are you on?

[anka-213]

Darwin

[siraben]

Is your channel up to date? The only inconsistency between our machines then must be the channel since I put <nixpkgs> as the default value for pkgs.

Edit: I just ran nix-build --check and it still builds as before.

[siraben]

For anyone reading this, the issue @anka-213 encountered was fixed by disabling sandboxing in nix.conf since it is problematic on macOS.