Release V15.2 - Stability Overhaul, Full Gyro Emulation, PresentMon FPS, Legion Go S fixes

[corando98]

This update focuses on installation & stability fixes for the issues reported on V15.1 (#90, #91, #92), plus a complete overhaul of controller emulation gyro support.

Installation & Stability (please update if GoTweaks was broken for you)

• Fixed the helper deploy bug that could wipe its own install and leave GoTweaks stuck on "Initial Setup in progress" forever. This also caused the helper to stay on an old version after updating (Legion tab missing, widget stuck "Launching helper").
• Fixed duplicate helper processes spinning at full CPU after first setup (mutex + setup-handoff race). If you saw several XboxGamingBarHelper.exe in Task Manager, this was it.
• Downloads (PawnIO installer, ViGEmBus installer, updates) now have real timeouts. On machines with strict outbound firewall rules the Install buttons silently hung forever - they now fail with a logged error instead.
• Display resolution/refresh detection now pins to the primary display device. Fixes phantom "1920x1080@60" readings on multi-GPU / eGPU / LTSC setups (Newest version totally unusable on Windows 11 LTSC 24H2 with Legion Go 2. #91, Resolution doesn’t populate properly when using egpu #47).
• Legion Go S: the controller monitor no longer rescans incompatible HID devices in an endless loop (CPU waste + log spam). Go S skips the monitor entirely; other devices back off smartly and recover within seconds when controllers are powered back on.
• Game Bar no longer closes instantly on activation-path exceptions (Gambar forces closes whenever tdp is changed on desktop #81) - global exception guard with logging.

Controller Emulation - Gyro on every target
Fully mapped IMU (gyro + accelerometer) wire formats for all VIIPER targets, verified against SDL3 and Steam on Legion Go 2:

• DualShock 4 / DualSense / DualSense Edge
• Steam Deck (also fixes sticks/buttons silently not working - SDL3 rejected every report due to a header length bug)
• Switch Pro, Joy-Con Pair, Joy-Con Left & Right (landscape single Joy-Con with SL/SR mapped from back paddles)
• New "Alternate gyro convention" toggle for downstream apps that read gyro differently (Steam gyro-to-mouse vs native game gyro)
• Software gyro bias calibration (Steam-style one-shot capture) + torn gyro register read filter for Legion Go 2 firmware quirk

PresentMon FPS + FrameBudget OSD (#66)

• Rendered vs displayed FPS from Intel PresentMon - finally see real frame generation output (AFMF/LSFG show [FG] badge)
• New FrameBudget OSD item with CPU/GPU-bound indicator

GoTweaks Lighting & Haptics

• Reactive lighting effects, button haptics, and controller sleep timeout for Legion Go

Fixes

• Charge limit persists and re-applies on boot ([LeGo2][Z2E] 15.1 Bugs #88, Charge Limit not working #92)
• AutoHibernate AC/DC gate reads correct battery status ([LeGo2][Z2E] 15.1 Bugs #88)
• Fan RPM always pushed to OSD; fan curve respects max point instead of hardcoded 100% (Fan Control RPM and curve not applying #83, [LeGo2][Z2E] 15.1 Bugs #88)
• Custom Legion SPPL/FPPT persist across reboot and profile reapply (Some bugs with V15 #79)
• UWP / Microsoft Store game detection (Forza Horizon 4) via ApplicationFrameHost resolution (Forza Horizon 4 no game detection #87)
• AFMF Display-tab toggle reliably reaches the AMD driver
• Legion Go 2 CPU/GPU wattage OSD labels match Adrenalin
• Keyboard bind dropdowns label Win keys as LWin/RWin (Desktop and Page buttons can't be set to LWin or RWin #68)
• Per-profile TDP Boost deltas; CPU optimization pass (sensor walk gating, idle throttling)
• Quieter logs: game detection, HID reconnect, RTSS attach

Known issues

• Joy-Con Right gyro mapping shipped with best-known values - feedback welcome if motion feels off
• Game Bar overlay tiles can render out of bounds after "Rearrange tiles" on some LTSC setups (Newest version totally unusable on Windows 11 LTSC 24H2 with Legion Go 2. #91) - investigating

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This discussion was created from the release Release V15.2 - Stability Overhaul, Full Gyro Emulation, PresentMon FPS, Legion Go S fixes.

[namecaps3k]

actually after updating I'm stuck on launching helper and initial setup on progress. it was OK before I updated to 15.2

[rsxl-max]

I had an issue and had to uninstall to then do a fresh install. When reinstalled, it won't get past the stuck on launching helper stage.
The only way I can get this to work again is to install a much earlier version in the release list.

[APKsaadalhamady]

Having the same issue here... not connected to helper on legion go 2, I recently installed it.. version 15.2 miss the installer file... so I take the installer from previous version and installed it.. now it installed but get this issue of not connected to helper

[APKsaadalhamady]

Solved: when open Gotweaks and helper launching an User Acount Window shown asking "Do you want to allow app...."
When you select yes it end with helper not connected issue, but here what you should actually do "Select NO" and everything work!!!