Messages in this thread | | | Date | Fri, 20 Jan 2012 15:44:44 -0500 | From | Greg KH <> | Subject | Re: PROBLEM: Kernel version 3.2.1 usb touchscreen device not recognised [UDEV? USBINPUT? HOOK] |
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On Sat, Jan 21, 2012 at 07:13:58AM +1100, Padfoot wrote: > On 21/01/12 03:02, Greg KH wrote: > >On Fri, Jan 20, 2012 at 07:13:54PM +1100, Padfoot wrote: > >>Upgrade from kernel 3.1.9 to 3.2.1 eGalax usb touchscreen device is > >>no longer recognised. > >> > >>Device is an Acer Iconia Tab w501 with inbuilt touchscreen. Screen > >>is a pci device but is connected on boot as a usb input device. > >>Issue appears to be with either UDEV or USBINPUT boot hook failing > >>to recognise the device as can be seen in the dmesg.3.2.1 > >>attachment. > >> > >>Downgrading to kernel 3.1.9 corrects the issue. > >Can you run 'git bisect' between 3.1.0 and 3.2.0 to find the problem > >commit here? > > > >Also, you might want to cc: the linux-input developers, they can help > >you out much better than the general list can. > > > >greg k-h > > > Hi Greg, > > I am not a kernel dev, nor have I ever compiled a kernel, so I don't > think I am able to help with a git bisect to locate the offending > commit. I am just a regular user running pre-compiled packages on my > Arch Linux distro. But, of course I am happy to assist wherever I > can.
If you want to build your own kernel, there are lots of instructions on how do this online (google for 'linux kernel in a nutshell' for a free book about this.)
Otherwise, can you file a bug with the arch linux developers? They might be able to help you out here better as you are using a distro kernel.
good luck,
greg k-h
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