forked from unom/punktfunk
enricobuehlerandClaude Fable 5
2a6bf3c421
The managed takeover masked gamescope-session-plus@*.service and trusted the mask to hold SDDM's Relogin=true loop at bay. On images whose sddm session helper execs the session script directly (/etc/sddm/wayland-session gamescope-session-plus steam — f43 bazzite-deck), the relogin never touches the unit: SDDM relogged in ~3x/s for the whole stream, each attempt a full bash --login session start failing against the managed instance. Live on the .41 VM (2026-07-31): 328 forks/s, load 6+, 1481 logind sessions in 8 minutes, the journal flooded past its own rotation — and a 5070 Ti that "could not hold 240fps". A DM that drove a LIVE gaming session is now stopped for the stream's duration on every flavor (the fragile-flavor machinery — lingering guard, pkexec dm-helper, restore via reset-failed+restart, crash-persisted state — already existed and is reused as-is; a pure dm_plan() derives the decision and is unit-tested). The flavors now differ only in the degraded mode when the stop is impossible: SDDM falls back to mask-only (the storm tax, but Steam stays protected — never attach), fragile DMs still fail the takeover into the attach degrade. The mask stays as belt-and-braces for the window before the stop and for images that do route the relogin through the unit. Verified: scripts/xcheck.sh linux clippy (-D warnings, --all-targets) clean; pf-vdisplay suite 125/125 on Ubuntu 26.04. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>