We can't assume that DRI card minor is the same as NVidia GPU device minor,
because some DRI minors could be taken by GPUs of other vendors.
Fixes#87788, #98942.
The current type for the busId options are too relaxed, a stricter
constraint should be imposed to guard against typos which result
in Xorg unable to start.
This commit restricts the type to adhere to the B/D/F notation[1] for
addressing devices as expected by the module option.
[1] - https://wiki.osdev.org/PCI#Configuration_Space_Access_Mechanism_.231
The new option (disabled by default) pulls in the experimental sensor
calibration files for the Facetime HD camera. These will also be pulled
in by hardware.enableAllFirmware.
For displays with high pixel density, there is no need to do subpixel
anti-aliasing (which is the default) – grayscale antialiasing is enough.
In terms of fontconfig, we keep antialiasing on, but tell it not to play
any RGB tricks.
GDM enables Wayland on supported platforms automatically (see ${gnome.gdm}/lib/udev/rules.d/61-gdm.rules), so we removed the `gdm.nvidiaWayland` option.
You will still need `hardware.nvidia.modesetting.enable = true;` with `nvidia` driver, though.
The Intel SGX DCAP driver makes the SGX application enclave device and
the SGX provisioning enclave available below the path `/dev/sgx/`. Since
Linux 5.11, a derivation of the DCAP driver is part of the kernel and
available through the X86_SGX config option; NixOS enables this option
by default.
In contrast to the out-of-tree DCAP driver, the in-tree SGX driver uses
a flat hierarchy for the SGX devices resulting in the paths
`/dev/sgx_enclave` for the application enclave device and
`/dev/sgx_provison` for the provisioning enclave device.
As of this commit, even the latest version of the Intel SGX PSW
libraries still tries to open the (legacy) DCAP paths only. This means
that SGX software currently cannot find the required SGX devices even if
the system actually supports SGX through the in-tree driver. Intel wants
to change this behavior in an upcoming release of intel/linux-sgx.
Having said that, SGX software assuming the SGX devices below
`/dev/sgx/` will prevail. Therefore, this commit introduces the NixOS
configuration option `hardware.cpu.intel.sgx.enableDcapCompat` which
creates the necessary symlinks to support existing SGX software. The
option defaults to true as it is currently the only way to support SGX
software. Also, enabling the SGX AESM service enables the option.
The permissions of the devices `/dev/sgx_enclave` and
`/dev/sgx_provison` remain the same, i.e., are not affected regardless
of having the new option enabled or not.
This renames our `firmwareLinuxNonfree` package to `linux-firmware`.
There is prior art for this in multiple other distros[1][2][3].
Besides making the package more discoverable by those searching for the
usual name, this also brings it in-line with the `kebab-case` we
normally see in `nixpkgs` pnames, and removes the `Nonfree` information
from the name, which I consider redundant given it's present in
`meta.license`.
The corresponding alias has been added, so this shouldn't break
anything.
[1]: https://archlinux.org/packages/core/any/linux-firmware/
[2]: https://src.fedoraproject.org/rpms/linux-firmware
[3]: https://packages.gentoo.org/packages/sys-kernel/linux-firmware
This patch fixes a bug caused by an incorrect reference to
'nvidiaSettings' rather than 'cfg.nvidiaSettings'. The bug caused
the system to not build when using the nvidia drivers.
Tested on my local machine.
For security reasons, and generally, it is best to create a more fine
grained group than plugdev. This way users that wish to tweak razer
devices don't have access to the entire plugdev group's permissions.
This is of course a breaking change.
use it when networkmanager or wpa_supplicant is enabled.
fixes#57053
fixes "Direct firmware load for regulatory.db failed with error -2"
in dmesg
Note that all kernels on unstable are newer that 4.15, which is required
for this to work.
The sysfs file /sys/kernel/mm/ksm/run seems to be available as soon as
the kernel has started, so no point in waiting for udev to "settle". If
for some reason it doesn't, we let the unit fail explicitly.
This is a very simple module that installs a single udev rule.
The rule set the ownership of all /dev/i2c-* devices to a
group, "i2c" by default but can be changed. The "uaccess" tag
also makes systemd add an ACL for users with a seat[1].
Fix issue #91771
[1]: https://enotty.pipebreaker.pl/2012/05/23/linux-automatic-user-acl-management/
