Comment 4 for bug 433801

/proc/bus/input/devices has this section:
I: Bus=0011 Vendor=0002 Product=0007 Version=88b1
N: Name="SynPS/2 Synaptics TouchPad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input8
U: Uniq=
H: Handlers=mouse1 event8
B: EV=b
B: KEY=6420 0 70000 0 0 0 0 0 0 0 0
B: ABS=11000003

(no reference to ALPS)

Once I found this, I found this incantation:
"sudo modprobe -r psmouse"
and
"sudo modprobe psmouse rate=40"

Having done this, I can now type and mouse at the same time. No lost keyboard events! Whoo, hoo!

Thanks Dmitry. That seems to have done it.

I've pulled the following section out of the dmidecode output. Let me know if you need more of it.

Handle 0x00B0, DMI type 21, 7 bytes
Built-in Pointing Device
 Type: Touch Pad
 Interface: PS/2
 Buttons: 2