Dear developers,
(sorry for the long CC list, it looks quite long to me, but I tried to follow the issue reporting guide as closely as possible)
Since patches [1], [2] and [3] were applied to the kernel, there is a regression with Lenovo ThinkPad Compact USB Keyboard (old model, not II).
[1] https://github.com/torvalds/linux/commit/46a0a2c96f0f47628190f122c2e3d879e59... [2] https://github.com/torvalds/linux/commit/2f2bd7cbd1d1548137b351040dc4e037d18... [3] https://github.com/torvalds/linux/commit/43527a0094c10dfbf0d5a2e7979395a38de...
The regression is that a middle click is performed when releasing middle button after wheel emulation.
The bug appears randomly, it can be after 5 minutes or 1 hour of keyboard usage, and can only be worked around by unplugging/re-plugging the keyboard. (I ended up resorting to simulate an unplug/replug, with a script which echoes 0 then 1 to /sys/bus/usb/devices/<id>/authorized, since I was afraid to damage the Micro-USB outlet by physically unplugging/re-plugging too much).
Those spurious clicks are very annoying, since they can open links in new tabs when scrolling in Firefox, or pasting text when scrolling in terminals, or other unwanted stuff.
I witnessed it with latest kernels (Debian unstable) as well as stable kernels (Debian 12 Bookworm, stable).
On Debian Stable, the last working kernel was 5.10.127, the regression appeared in 5.10.136 (i read all changelogs on kernel.org between those two releases but couldn't find anything about hid-lenovo, so I can't tell exactly in which release the regression appeared, Debian upgraded directly from .127 to .136).
I reported it in Debian [4], and apparently I'm not the only person suffering from it [5].
[4] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1058758#32 [5] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1058758#42
I would understand that such bugs would end up in a development kernel like the ones provided by Debian Unstable, but not with stable kernels like the ones provided by Debian Stable.
Regards,