Ubuntu

9.04 System hang when Logitech USB Receiver (mouse) removed

Asked by Craigwell

I have an HP NR3610 Rugged Laptop, which is essentially a re-badged Itronix Gobook II IX260+.

I installed 9.04 cleanly from a CD, not an upgrade.

I had my Logitech V220 wireless USB mouse for laptops plugged into the USB port when I did the install.

Everything works except the side-scrolling feature, which I can live without.

Here's my real problem:

If I do not boot the system with the usb dongle for the mouse in place, only some of my keys work, and I cannot log in. The mouse buttons on the synaptics touch pad also will not work.

If I boot the system with the USB receiver for the V220 in place, it works fine. If I REMOVE it while the system is running, it essentially hangs. The Keyboard, and Synaptics Touch pad will not function, even if I plug the dongle back in, and I am forced to do a hard reboot.

To be clear, the synaptics touch pad and the keyb work fine alongside the logitech v220 - when the V220 is plugged in.

I am hoping for solution to this, as I do not take the wireless mouse with me when I have the laptop out of the house typically, as it's a damage risk for the dongle.

I have been using #ubuntu EFnet, as well as reading as much docs/forum posts as possible, and I see all kinds of logitech issues but not quite like this.

I realize I'm trying to make 9.04 work on a tricky hardware platform (radeon 7000 mobile graphics, touch screen etc) but otherwise I've been pleased on how it works. (I can't imagine ever getting the touchscreen to work properly, but that's another battle for another day).

Any help is most appreciated!

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Craigwell (jaycraig) said : 		#1

http://pastebin.com/m102b4d54

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Craigwell (jaycraig) said : 		#2

here is the dmesg

also note, side scrolling is working within firefox now. perhaps intermittant error.

Thanks!

http://pastebin.com/m7429b25f

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Craigwell (jaycraig) said : 		#3

I'm hunching that if i installed 9.04 with the usb receiver not plugged in, that the system would work fine without it. is it possible to re-order the devices in the system and how it boots up, whether xorg or hal (of which i know very little) so that the system will at least function when booted WITHOUT the usb receiver installed??

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Craigwell (jaycraig) said : 		#4

discovered with assistance that i can unplug/plug in no problem in terminal, but when starting gdm it's messed without the usb wireless receiver. i can then go back to terminal, plug the receiver back in, and re-start gdm and its fine.

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Craigwell (jaycraig) said : 		#5

i have a good UNDERnet chatter to thank for this one.

on line 135 of /boot/grub/menu.lst,

i added the following: highres=off nohz=off irqpoll

seems my system doesnt like these kernals: http://kerneltrap.org/node/6750

and here is a thread that this fix was found in: http://ubuntuforums.org/archive/index.php/t-779231.html

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Craigwell (jaycraig) said : 		#6

further refinement shows that it's specifically the nohz=off option that does the trick. I forced HPET, but it didnt matter re the mouse situation. I left it with HPET=force as well.