Comment 28 for bug 973297

enabled proposed and updated input-evdev . Can confirm the crash is still in there.

I also looked at the backported changes, and it does not look like the codechanges are connected with this.

evdev identifies the headset dongle as "evdev keyboard catchall" and configues it accordingly:

[ 64.714] (II) config/udev: Adding input device Logitech Logitech Wireless Headset (/dev/input/event2)
[ 64.714] (**) Logitech Logitech Wireless Headset: Applying InputClass "evdev keyboard catchall"
[ 64.714] (II) Using input driver 'evdev' for 'Logitech Logitech Wireless Headset'
[ 64.714] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[ 64.714] (**) Logitech Logitech Wireless Headset: always reports core events
[ 64.714] (**) evdev: Logitech Logitech Wireless Headset: Device: "/dev/input/event2"
[ 64.714] (--) evdev: Logitech Logitech Wireless Headset: Vendor 0x46d Product 0xa29
[ 64.714] (--) evdev: Logitech Logitech Wireless Headset: Found absolute axes
[ 64.714] (--) evdev: Logitech Logitech Wireless Headset: Found absolute multitouch axes
[ 64.714] (--) evdev: Logitech Logitech Wireless Headset: Found keys
[ 64.714] (II) evdev: Logitech Logitech Wireless Headset: Configuring as mouse
[ 64.714] (II) evdev: Logitech Logitech Wireless Headset: Configuring as keyboard
[ 64.714] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.3/input/input20/event2"
[ 64.714] (II) XINPUT: Adding extended input device "Logitech Logitech Wireless Headset" (type: KEYBOARD, id 8)
[ 64.714] (**) Option "xkb_rules" "evdev"
[ 64.714] (**) Option "xkb_model" "pc105"
[ 64.714] (**) Option "xkb_layout" "de"
[ 64.715] (II) evdev: Logitech Logitech Wireless Headset: initialized for absolute axes.
[ 64.715]
Backtrace:
[ 64.715] 0: /usr/bin/X (xorg_backtrace+0x37) [0xb76ac637]
[ 64.715] 1: /usr/bin/X (0xb7524000+0x18c3ba) [0xb76b03ba]
[ 64.715] 2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb750140c]
[ 64.715] 3: /lib/i386-linux-gnu/libc.so.6 (0xb7166000+0x135d32) [0xb729bd32]
[ 64.715] 4: /usr/bin/X (XIChangeDeviceProperty+0x16c) [0xb7644b0c]
[ 64.715] 5: /usr/lib/xorg/modules/input/evdev_drv.so (0xb4140000+0x634e) [0xb414634e]
[ 64.715] 6: /usr/lib/xorg/modules/input/evdev_drv.so (0xb4140000+0x6595) [0xb4146595]
[ 64.715] 7: /usr/bin/X (ActivateDevice+0x66) [0xb75502e6]
[ 64.715] 8: /usr/bin/X (0xb7524000+0x8cc15) [0xb75b0c15]
[ 64.715] 9: /usr/bin/X (0xb7524000+0x9b152) [0xb75bf152]
[ 64.715] 10: /usr/bin/X (0xb7524000+0x9b9c3) [0xb75bf9c3]
[ 64.715] 11: /usr/bin/X (config_init+0x14) [0xb75bea24]
[ 64.715] 12: /usr/bin/X (InitInput+0xfd) [0xb759eeed]
[ 64.715] 13: /usr/bin/X (0xb7524000+0x2524e) [0xb754924e]
[ 64.715] 14: /lib/i386-linux-gnu/libc.so.6 (__libc_start_main+0xf3) [0xb717f4d3]
[ 64.715] 15: /usr/bin/X (0xb7524000+0x255e9) [0xb75495e9]
[ 64.715] Segmentation fault at address 0xfa
[ 64.715]
Caught signal 11 (Segmentation fault). Server aborting