Description of problem:
The kernel doesn't assign the synaptics driver to the touchpad and uses the generic ps/2 mouse driver instead.

This happens randomly (I guess it depends on the order the kernel discovers the USB devices).

Version-Release number of selected component (if applicable):

2.6.35.6-48.fc14

This problem doesn't exist in 2.6.35.4-28.fc14.

How reproducible:

Randomly, sometimes after a couple of reboots the touchpad is detected properly:

Nov 22 07:11:10 localhost kernel: [    1.798626] udev[104]: starting version 161
Nov 22 07:11:10 localhost kernel: [    1.815789] usb 2-1: New USB device found, idVendor=8087, idProduct=0020
Nov 22 07:11:10 localhost kernel: [    1.815794] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
Nov 22 07:11:10 localhost kernel: [    1.816205] hub 2-1:1.0: USB hub found
Nov 22 07:11:10 localhost kernel: [    1.816568] hub 2-1:1.0: 8 ports detected
Nov 22 07:11:10 localhost kernel: [    1.837520] [drm] Initialized drm 1.1.0 20060810
Nov 22 07:11:10 localhost kernel: [    1.856674] i915 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
Nov 22 07:11:10 localhost kernel: [    1.892226] usb 1-1.6: new high speed USB device using ehci_hcd and address 3
Nov 22 07:11:10 localhost kernel: [    1.907681] [drm] set up 31M of stolen space
Nov 22 07:11:10 localhost kernel: [    2.018470] usb 1-1.6: New USB device found, idVendor=0c45, idProduct=641d
Nov 22 07:11:10 localhost kernel: [    2.018474] usb 1-1.6: New USB device strings: Mfr=2, Product=1, SerialNumber=0
Nov 22 07:11:10 localhost kernel: [    2.018478] usb 1-1.6: Product: Laptop_Integrated_Webcam_1.3M
Nov 22 07:11:10 localhost kernel: [    2.018481] usb 1-1.6: Manufacturer: CN0FJT7K7248708GW00SA00
Nov 22 07:11:10 localhost kernel: [    2.093890] usb 2-1.6: new full speed USB device using ehci_hcd and address 3
Nov 22 07:11:10 localhost kernel: [    2.180344] usb 2-1.6: New USB device found, idVendor=0a5c, idProduct=4500
Nov 22 07:11:10 localhost kernel: [    2.180348] usb 2-1.6: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Nov 22 07:11:10 localhost kernel: [    2.180351] usb 2-1.6: Product: BCM2046B1
Nov 22 07:11:10 localhost kernel: [    2.180353] usb 2-1.6: Manufacturer: Broadcom
Nov 22 07:11:10 localhost kernel: [    2.180637] hub 2-1.6:1.0: USB hub found
Nov 22 07:11:10 localhost kernel: [    2.180838] hub 2-1.6:1.0: 3 ports detected
Nov 22 07:11:10 localhost kernel: [    2.295657] Synaptics Touchpad, model: 1, fw: 7.2, id: 0x1c0b1, caps: 0xd04731/0xa40000/0xa0000
Nov 22 07:11:10 localhost kernel: [    2.368920] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input5
Nov 22 07:11:10 localhost kernel: [    2.455061] usb 2-1.6.1: new full speed USB device using ehci_hcd and address 4
Nov 22 07:11:10 localhost kernel: [    2.518458] fbcon: inteldrmfb (fb0) is primary device
Nov 22 07:11:10 localhost kernel: [    2.543122] usb 2-1.6.1: New USB device found, idVendor=413c, idProduct=8161
Nov 22 07:11:10 localhost kernel: [    2.543129] usb 2-1.6.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
Nov 22 07:11:10 localhost kernel: [    2.544995] input: HID 413c:8161 as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.6/2-1.6.1/2-1.6.1:1.0/input/input6
Nov 22 07:11:10 localhost kernel: [    2.545083] generic-usb 0003:413C:8161.0001: input,hidraw0: USB HID v1.11 Keyboard [HID 413c:8161] on usb-0000:00:1d.0-1.6.1/input0
Nov 22 07:11:10 localhost kernel: [    2.607833] usb 2-1.6.2: new full speed USB device using ehci_hcd and address 5
Nov 22 07:11:10 localhost kernel: [    2.686832] usb 2-1.6.2: New USB device found, idVendor=413c, idProduct=8162
Nov 22 07:11:10 localhost kernel: [    2.686835] usb 2-1.6.2: New USB device strings: Mfr=0, Product=0, SerialNumber=0
Nov 22 07:11:10 localhost kernel: [    2.689669] input: HID 413c:8162 as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.6/2-1.6.2/2-1.6.2:1.0/input/input7
Nov 22 07:11:10 localhost kernel: [    2.690019] generic-usb 0003:413C:8162.0002: input,hidraw1: USB HID v1.11 Mouse [HID 413c:8162] on usb-0000:00:1d.0-1.6.2/input0
Nov 22 07:11:10 localhost kernel: [    2.949060] Console: switching to colour frame buffer device 170x48

When it fails the logs are:

Nov 28 17:10:31 localhost kernel: [    1.789405] udev[104]: starting version 161
Nov 28 17:10:31 localhost kernel: [    1.807822] usb 2-1: New USB device found, idVendor=8087, idProduct=0020
Nov 28 17:10:31 localhost kernel: [    1.807827] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
Nov 28 17:10:31 localhost kernel: [    1.808108] hub 2-1:1.0: USB hub found
Nov 28 17:10:31 localhost kernel: [    1.808193] hub 2-1:1.0: 8 ports detected
Nov 28 17:10:31 localhost kernel: [    1.828863] [drm] Initialized drm 1.1.0 20060810
Nov 28 17:10:31 localhost kernel: [    1.847061] i915 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
Nov 28 17:10:31 localhost kernel: [    1.883741] usb 1-1.6: new high speed USB device using ehci_hcd and address 3
Nov 28 17:10:31 localhost kernel: [    1.896500] [drm] set up 31M of stolen space
Nov 28 17:10:31 localhost kernel: [    2.000319] usb 1-1.6: New USB device found, idVendor=0c45, idProduct=641d
Nov 28 17:10:31 localhost kernel: [    2.000322] usb 1-1.6: New USB device strings: Mfr=2, Product=1, SerialNumber=0
Nov 28 17:10:31 localhost kernel: [    2.000324] usb 1-1.6: Product: Laptop_Integrated_Webcam_1.3M
Nov 28 17:10:31 localhost kernel: [    2.000326] usb 1-1.6: Manufacturer: CN0FJT7K7248708GW00SA00
Nov 28 17:10:31 localhost kernel: [    2.073425] usb 2-1.6: new full speed USB device using ehci_hcd and address 3
Nov 28 17:10:31 localhost kernel: [    2.161423] usb 2-1.6: New USB device found, idVendor=0a5c, idProduct=4500
Nov 28 17:10:31 localhost kernel: [    2.161426] usb 2-1.6: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Nov 28 17:10:31 localhost kernel: [    2.161429] usb 2-1.6: Product: BCM2046B1
Nov 28 17:10:31 localhost kernel: [    2.161430] usb 2-1.6: Manufacturer: Broadcom
Nov 28 17:10:31 localhost kernel: [    2.161701] hub 2-1.6:1.0: USB hub found
Nov 28 17:10:31 localhost kernel: [    2.161888] hub 2-1.6:1.0: 3 ports detected
Nov 28 17:10:31 localhost kernel: [    2.236186] input: PS/2 Generic Mouse as /devices/platform/i8042/serio1/input/input5
Nov 28 17:10:31 localhost kernel: [    2.434754] usb 2-1.6.1: new full speed USB device using ehci_hcd and address 4
Nov 28 17:10:31 localhost kernel: [    2.501495] fbcon: inteldrmfb (fb0) is primary device
Nov 28 17:10:31 localhost kernel: [    2.511912] usb 2-1.6.1: New USB device found, idVendor=413c, idProduct=8161
Nov 28 17:10:31 localhost kernel: [    2.511919] usb 2-1.6.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
Nov 28 17:10:31 localhost kernel: [    2.513934] input: HID 413c:8161 as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.6/2-1.6.1/2-1.6.1:1.0/input/input6
Nov 28 17:10:31 localhost kernel: [    2.514058] generic-usb 0003:413C:8161.0001: input,hidraw0: USB HID v1.11 Keyboard [HID 413c:8161] on usb-0000:00:1d.0-1.6.1/input0
Nov 28 17:10:31 localhost kernel: [    2.577405] usb 2-1.6.2: new full speed USB device using ehci_hcd and address 5
Nov 28 17:10:31 localhost kernel: [    2.666035] usb 2-1.6.2: New USB device found, idVendor=413c, idProduct=8162
Nov 28 17:10:31 localhost kernel: [    2.666038] usb 2-1.6.2: New USB device strings: Mfr=0, Product=0, SerialNumber=0
Nov 28 17:10:31 localhost kernel: [    2.668910] input: HID 413c:8162 as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.6/2-1.6.2/2-1.6.2:1.0/input/input7
Nov 28 17:10:31 localhost kernel: [    2.669058] generic-usb 0003:413C:8162.0002: input,hidraw1: USB HID v1.11 Mouse [HID 413c:8162] on usb-0000:00:1d.0-1.6.2/input0
Nov 28 17:10:31 localhost kernel: [    2.902547] Console: switching to colour frame buffer device 170x48

This is a Dell Inspiron 15R.