[Bug] Key-up reports lost when Linux USB autosuspend is enabled (stuck/repeating keys) #58

Describe the Bug

Random keys (Backspace, Enter, letters) get stuck after being released and auto-repeat
indefinitely. The repeat stops only when any other key is pressed. Frequency: every
few minutes during normal typing.

/sys/bus/usb/devices/<keyboard>/power/control was auto (USB autosuspend enabled).
The key-up report is lost when the device suspends after a key is released. The next
keypress wakes the device and sends a full-state report, which implicitly releases the
stuck key.

libinput trace (libinput debug-events), Enter release arriving with the next keypress:

+337.528s  KEY_ENTER (28) pressed
           [~5.5s, no keyboard events; touchpad in use]
+343.026s  KEY_LEFTMETA (125) pressed
+343.026s  KEY_ENTER (28) released   <- same timestamp

The touchpad (i2c) kept reporting throughout; only the USB keyboard went silent.

Expected: the keyboard should survive USB suspend/resume without losing a key-up:
either resend the current key state after wakeup, or not allow suspend while a report
is pending or a key is held.

Keyboard Used

framework/ansi - Laptop 16 Keyboard Module ANSI (32ac:0012), stock firmware 0.3.1 via fwupd

Link to product page (if applicable)

https://frame.work/products/keyboard-module?v=FRAKEA00AA

Operating System

Fedora 44, kernel 7.2.5-200.fc44.x86_64, GNOME Shell 50.5 (Wayland)

qmk doctor Output

N/A — stock Framework firmware 0.3.1, not a custom build.

Is AutoHotKey / Karabiner installed

• AutoHotKey (Windows)
• Karabiner (macOS)

Other keyboard-related software installed

None

Additional Context

Hardware: Framework Laptop 16, AMD Ryzen AI 9 HX 370.

Possible workaround: disabling autosuspend for the keyboard appears to stop the
problem (still testing):

ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="32ac", ATTR{power/control}="on"

This only masks the bug and gives up the power savings from autosuspend.

Long-running community thread with the same symptom and workaround:
https://community.frame.work/t/solved-keys-stick-and-repeat-after-being-released/51153