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framework AMD 7040: add instructions on how to update fingerprint fw

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These are copied from the 13th-gen intel Framework README.
They the same way.
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RTUnreal 2024-01-04 21:36:11 +01:00 committed by mergify[bot]
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framework/13-inch/7040-amd/README.md
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@ -27,3 +27,43 @@ As of firmware v03.03, a bug in the EC causes the system to wake if AC is connec
``` ```
See [Framework AMD Ryzen 7040 Series lid wakeup behavior feedback](https://community.frame.work/t/tracking-framework-amd-ryzen-7040-series-lid-wakeup-behavior-feedback/39128/45). See [Framework AMD Ryzen 7040 Series lid wakeup behavior feedback](https://community.frame.work/t/tracking-framework-amd-ryzen-7040-series-lid-wakeup-behavior-feedback/39128/45).
## Getting the fingerprint sensor to work
The firmware on the fingerprint sensor needs a downgrade to make it work on Linux.
The process is documented [here](https://knowledgebase.frame.work/en_us/updating-fingerprint-reader-firmware-on-linux-for-13th-gen-and-amd-ryzen-7040-series-laptops-HJrvxv_za).
However on recent NixOS versions also fwupd can no longer update the firmware.
Using the following snippet allows to temporarly downgrade fwupd to an old-enough version:
```nix
{
services.fwupd.enable = true;
# we need fwupd 1.9.7 to downgrade the fingerprint sensor firmware
services.fwupd.package = (import (builtins.fetchTarball {
url = "https://github.com/NixOS/nixpkgs/archive/bb2009ca185d97813e75736c2b8d1d8bb81bde05.tar.gz";
sha256 = "sha256:003qcrsq5g5lggfrpq31gcvj82lb065xvr7bpfa8ddsw8x4dnysk";
}) {
inherit (pkgs) system;
}).fwupd;
}
```
Afterwards the downgraded driver can be downloaded and installed like this:
```
wget https://github.com/FrameworkComputer/linux-docs/raw/main/goodix-moc-609c-v01000330.cab
sudo fwupdtool install --allow-reinstall --allow-older goodix-moc-609c-v01000330.cab
Loading… [ - ]/nix/store/1n2l5law9g3b77hcfyp50vrhhssbrj5g-glibc-2.37-8/lib/libc.so.6: version `GLIBC_2.38' not found (required by /nix/store/f55npw04a2s6xmrbx4jw12xq16b3avb8-gvfs-1.52.1/lib/gio/modules/libgvfsdbus.so)
Failed to load module: /nix/store/f55npw04a2s6xmrbx4jw12xq16b3avb8-gvfs-1.52.1/lib/gio/modules/libgvfsdbus.so
Loading… [ ]12:16:46.348 FuHistory schema version 9 is unknown
Writing… [************************************* ]12:16:57.055 FuEngine failed to update-cleanup after failed update: failed to get device before update cleanup: failed to wait for detach replug: device d432baa2162a32c1554ef24bd8281953b9d07c11 did not come back
failed to write: failed to reply: transfer timed out
```
The error message above is harmless. After a reboot, I was able to enroll my fingerprint like this:
```
sudo fprintd-enroll $USER
```