I noticed the "DualPoint TouchPad...lost sync" messages in the output of dmesg. I removed "irqpoll" from my kernel command line and rebooted, and mouse movement (via either pointing stick or touchpad) is back to normal. I'm using 32-bit Ubuntu 9.10 (Karmic) on a Dell Latitude D630.
Details:
* removed irqpoll from GRUB_CMDLINE_LINUX in /etc/default/grub
* ran "sudo update-grub"
* rebooted
However, I had originally *added* irqpoll because it appeared to fix very slow performance after resuming from sleep ( http://ubuntuforums.org/showthread.php?t=1417770 ), so I'm not sure if that will now be broken again.
I noticed the "DualPoint TouchPad...lost sync" messages in the output of dmesg. I removed "irqpoll" from my kernel command line and rebooted, and mouse movement (via either pointing stick or touchpad) is back to normal. I'm using 32-bit Ubuntu 9.10 (Karmic) on a Dell Latitude D630.
Details:
* removed irqpoll from GRUB_CMDLINE_LINUX in /etc/default/grub
* ran "sudo update-grub"
* rebooted
However, I had originally *added* irqpoll because it appeared to fix very slow performance after resuming from sleep ( http:// ubuntuforums. org/showthread. php?t=1417770 ), so I'm not sure if that will now be broken again.