I have a Compaq Presario V5000 laptop with a Broadcom BCM4318 wireless
chipset. With 10.1 I used ndiswrapper and the Windows bcml5.sys driver and
had no touchpad problems. After installing 10.3 and the bcm43xx driver module
with the appropriate bcm43xx firmware files, I have very erratic, jerky and
often non-responsive touchpad mouse behavior. The logfile is full of
messages like:
Jan 17 09:07:31 lt1 kernel: psmouse.c: TouchPad at isa0060/serio4/input0 lost
sync at byte 4
Jan 17 09:07:31 lt1 kernel: psmouse.c: issuing reconnect request
Jan 17 09:07:34 lt1 kernel: SoftMAC: Scanning finished: scanned 13 channels
starting with channel 1
The SoftMAC messages are from the bcm43xx module. The problem occurs even when
using a wired ethernet connection and no active wifi connection.
Experimenting a bit, I found that removing and reloading the bcm43xx module
fixes the problem, leading me to suspect interrupt sharing conflict or
something similar. Looking at /proc/interrupts doesn't give me a clue, since
the touchpad should be using either irq1 or 12, and the wifi uses irq 21:
CPU0
0: 189860 IO-APIC-edge timer
1: 622 IO-APIC-edge i8042
8: 2 IO-APIC-edge rtc
12: 109518 IO-APIC-edge i8042
14: 21527 IO-APIC-edge libata
15: 25752 IO-APIC-edge libata
16: 433 IO-APIC-fasteoi ATI IXP Modem, ATI IXP
18: 2 IO-APIC-fasteoi ohci_hcd:usb1, ehci_hcd:usb2,
ohci_hcd:usb3
19: 19850 IO-APIC-fasteoi eth0
21: 28041 IO-APIC-fasteoi acpi, bcm43xx
NMI: 0
LOC: 150095
ERR: 0
MIS: 0
Anyone seen this problem or have any suggestions on where to look?
Thanks,
Jim Cunning
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