The previous fix used canonical Off (mode 0x05) everywhere we wanted the
trigger to feel released \u2014 pre-race per-frame, idle timeout, shutdown.
Per Sony's docs (Nielk1 Rev 6) mode 0x05 "actively returns the trigger
stop to the neutral position". Re-asserting it 60 times/sec from main
thread, propagated by pydualsense's BG thread to the controller at
~250 Hz, made the trigger motor audibly whine as the firmware repeatedly
snapped the (already-neutral) trigger back to neutral.
Right answer: hybrid. One-shot 0x05 on the in-race \u2192 not-in-race
transition (and on the telemetry-idle timeout) so the firmware actually
retracts the motor; mode 0x00 (TriggerModes.Off, no-op clear) for
steady-state pre-race / idle frames so we're not yelling RESET in the
firmware's ear forever.
Implementation: prev_in_race tracks the last frame's race state. Steady
non-race frames call _apply_normal (mode 0x00); the first frame after a
race-end transition calls _apply_off (mode 0x05). pydualsense's BG
thread holds the 0x05 in memory long enough (one main-thread frame =
~16ms = ~4 BG iterations) to publish it to the controller before main
switches the in-memory state to 0x00.
Restores _apply_normal and DS_MODE_NORMAL that the previous commit
deleted. Updates divergence #4 in the module docstring.
Two issues in the deployed daemon:
1. After FH5 exits, the lightbar stayed lit. reset_triggers() touched
only triggers; pydualsense's BG sendReport thread kept re-publishing
whatever TouchpadColor we last set, so the controller stayed in the
last race color forever.
2. R2 had residual tension in FH5's main menu and on the desktop after
a race. Pre-race / idle states were emitting RacingDSX's NormalTrigger
(mode byte 0x00), which per Sony's docs (Nielk1 Rev6) only clears
state without retracting the trigger motor; mode 0x05 (canonical Off
/ Reset) actively returns the trigger to neutral. RacingDSX-on-Windows
gets away with 0x00 because something else (Steam Input or the OS)
reliably resets the motor on focus loss; on Linux nothing does.
Fixes:
- Drop _apply_normal/DS_MODE_NORMAL. Use _apply_off (mode 0x05) for every
'release the trigger' intent: pre-race per-frame, idle timeout, mid-race
zero-strength fallback, shutdown.
- Add reset_lightbar() that writes RGB(0,0,0).
- Track have_telemetry and fire the idle-timeout branch whenever
telemetry has been silent for IDLE_TIMEOUT_S, regardless of in_race.
Reset both triggers and lightbar in that branch.
Documented as divergence #4 in the module docstring.
agenix activation runs from initrd-nixos-activation-start, which fires
right after /sysroot/persistent is mounted but before impermanence's
stage-2 bind mounts. The TPM identity at /var/lib/agenix/tpm-identity
was therefore unreadable at activation time, and every secret silently
failed to decrypt: 'no readable identities found'. Visible downstream
fallout was pull-update-apply hitting HTTP 401 against the binary cache
because nix-cache-netrc was never written to /run/agenix.
Mark /var/lib/agenix as neededForBoot via a bare fileSystems entry,
mirroring the existing /home/${username} bind. Drop the now-redundant
environment.persistence directory entry to avoid two competing units.
Steam interprets exit 0 from 'steamos-update check' as 'update applied
successfully' and shows a persistent 'update available' notification.
The SteamOS convention is exit 7 = no update available.
new site-config.nix holds values previously duplicated across hosts:
domain, old_domain, contact_email, timezone, binary_cache (url + pubkey),
dns_servers, lan (cidr + gateway), hosts.{muffin,yarn} (ip/alias/ssh_host_key),
ssh_keys.{laptop,desktop,ci_deploy}.
threaded through specialArgs on all three hosts + home-manager extraSpecialArgs +
homeConfigurations.primary + serverLib. service-configs.nix now takes
{ site_config } as a function arg and drops its https namespace; per-service
domains (gitea/matrix/ntfy/mollysocket/livekit/firefox-sync/grafana) are
derived from site_config.domain. ~15 service files and 6 vm tests migrated.
breakage fixes rolled in:
- home/progs/zen/dark-reader.nix: 5 stale *.gardling.com entries in
disabledFor rewritten to *.sigkill.computer (caddy 301s the old names so
these never fired and the new sigkill urls were getting dark-reader applied)
- modules/desktop-common.nix: drop unused hugepagesz=1G/hugepages=3
kernelParams (no consumer on mreow or yarn; xmrig on muffin still reserves
its own via services/monero/xmrig.nix)
verification: muffin toplevel is bit-identical to pre-refactor baseline.
mreow/yarn toplevels differ only in boot.json kernelParams + darkreader
storage.js (nix-diff verified). deployGuardTest and fail2banVaultwardenTest
(latter exercises site_config.domain via bitwarden.nix) pass.
