Re: [ALUG] What do these messages in syslog mean (stops my trackball working)?

On 11 October 2013 11:32, Chris Green cl@isbd.net wrote:

I have a Logitech wireless trackball that I use with my Acer Aspire netbook running Xubuntu 12.10. It works for quite a while (random amounts of time) and then stops, the following messages appear in syslog when it stops:-

Oct 11 11:24:06 acer-aspire kernel: [ 7812.377726] uhci_hcd 0000:00:1d.1: >host controller process error, something bad happened!
Oct 11 11:24:06 acer-aspire kernel: [ 7812.377751] uhci_hcd 0000:00:1d.1: >host controller halted, very bad!
Oct 11 11:24:06 acer-aspire kernel: [ 7812.377781] uhci_hcd 0000:00:1d.1: >HC died; cleaning up
Oct 11 11:24:06 acer-aspire kernel: [ 7812.378030] usb 3-1: >USB disconnect, device number 2

An identical Logical trackball works perfectly with Xubuntu 12.10 on my desktop machine.

I would initially suspect a hardware fault. Swap the trackballs between the machines (including the receivers). That will tell you whether it is the machine or the trackball that is faulty. Also try different USB ports to see if it is a fault with one of the ports.

Colin