In your Xorg.0.log.old there is several errors with mouse:
(EE) ioctl EVIOCGNAME failed: Inappropriate ioctl for device
(II) UnloadModule: "evdev"
(EE) PreInit returned NULL for ""Logitech USB-PS/2 Optical Mouse""
...
(EE) ioctl EVIOCGNAME failed: Inappropriate ioctl for device
(II) UnloadModule: "evdev"
(EE) PreInit returned NULL for ""Macintosh mouse button emulation""
In your Xorg.0.log.old there is several errors with mouse:
(EE) ioctl EVIOCGNAME failed: Inappropriate ioctl for device
(II) UnloadModule: "evdev"
(EE) PreInit returned NULL for ""Logitech USB-PS/2 Optical Mouse""
...
(EE) ioctl EVIOCGNAME failed: Inappropriate ioctl for device
(II) UnloadModule: "evdev"
(EE) PreInit returned NULL for ""Macintosh mouse button emulation""