On Tue, Apr 05, 2011 at 12:32:27PM -0500, Manoj wrote: > Any thoughts on this one? > When both are enabled in BIOS what protocol does the kernel use to talk to the touchpad? Does it use synaptics protocol? Thanks. > Manoj Iyer > Ubuntu/Canonical > Hardware Enablement > > On 04/05/2011 09:53 AM, Manoj wrote: > >The Lenovo X220 has a touch pad and a track point. I would like to get > >some clues as to if there is any work around in the kernel for the issue > >I am seeing below: > > > >Case 1: Touchpad and Trackpoint enabled in BIOS. > >================================================ > >In this case the touchpad works correctly, but the trackpoint is not > >detected at all. Some times after random number of reboots, the > >trackpoint will start to respond approximately 15mts after X starts. But > >the mouse will be detected as PS2 Generic Mouse. > > > >Case 2: Touchpad Disabled Trackpoint Enabled in BIOS > >====================================================== > >In this case the trackpoint works as expected, and it is detected as > >TPPS/2 IBM TrackPoint. > >[ 9.675396] input: TPPS/2 IBM TrackPoint as > >/devices/platform/i8042/serio1/input/input9 > > > >I suspect this is a BIOS bug? Is it possible to work around this in the > >kernel? > > > > -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
