Touchpad does not work because of buggy controller implementation of the AUX loop command

Bug #534448 reported by Colin Ian King
10
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Fix Released
High
Colin Ian King
Karmic
Fix Released
High
Colin Ian King

Bug Description

A class of netbook and notebook laptops seem to have controllers that do not correctly implement the AUX loop command and this causes touchpad detection to fail.

This is fixed with upstream commit 1c7827ae70e7c8456e08f7bb9ef2238d27814cbe which is including in the Lucid kernel.

Changed in ubuntu:
status: New → In Progress
assignee: nobody → Colin King (colin-king)
importance: Undecided → High
milestone: none → karmic-updates
Revision history for this message
Colin Ian King (colin-king) wrote :

SRU justification:

Impact: Laptops touchpads do not get detected and hence do not work if they have a buggy implementation of the AUX loop command.

Fix: see attached patch (backport of upstream commit 1c7827ae70e7c8456e08f7bb9ef2238d27814cbe)

Testcase: With the patch, the AUX IRQ delivery test is bypassed and the touchpad works.

tags: added: patch
affects: ubuntu → linux (Ubuntu)
Changed in linux (Ubuntu Karmic):
status: New → In Progress
importance: Undecided → High
assignee: nobody → Colin King (colin-king)
Changed in linux (Ubuntu):
milestone: karmic-updates → none
Changed in linux (Ubuntu Karmic):
milestone: none → karmic-updates
Revision history for this message
Colin Ian King (colin-king) wrote :
Changed in linux (Ubuntu):
status: In Progress → Fix Committed
Changed in linux (Ubuntu Karmic):
status: In Progress → Fix Committed
tags: added: kernel-series-unknown
Revision history for this message
Stefan Bader (smb) wrote :

This was in 2.6.32, so its long released for Lucid.

Changed in linux (Ubuntu):
status: Fix Committed → Fix Released
Revision history for this message
Martin Pitt (pitti) wrote : Please test proposed package

Accepted linux into karmic-proposed, the package will build now and be available in a few hours. Please test and give feedback here. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

tags: added: verification-needed
Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (5.1 KiB)

This bug was fixed in the package linux - 2.6.31-21.59

---------------
linux (2.6.31-21.59) karmic-proposed; urgency=low

  [ Andy Whitcroft ]

  * [Config] generic-pae switch to M586TSC
    - LP: #519448

  [ Chris Wilson ]

  * (pre-stable) drm/i915: Increase fb alignment to 64k
    - LP: #404064

  [ Colin Ian King ]

  * Input: i8042 - bypass AUX IRQ delivery test on laptops
    - LP: #534448

  [ Jerone Young ]

  * SAUCE: Fix volume hotkeys for Dell Studio 1557
    - LP: #465250

  [ Mirsal Ennaime ]

  * SAUCE: aufs: Fix header files inclusion in debug.h
    - LP: #517151

  [ Stefan Bader ]

  * [Config] Enable all CGROUP configuration options
    - LP: #480739

  [ Surbhi Palande ]

  * Revert "[Upstream] acerhdf: Limit modalias matching to supported
    boards"
    - LP: #509730
  * [Config] ext3 defaults to ordered mode
    - LP: #510067

  [ Tim Gardner ]

  * [Config] Fix sub-flavours package conflicts
    - LP: #454827

  [ Upstream Kernel Changes ]

  * PCI/cardbus: Add a fixup hook and fix powerpc
    - LP: #455723
  * fnctl: f_modown should call write_lock_irqsave/restore
    - LP: #519436
  * ACPI: enable C2 and Turbo-mode on Nehalem notebooks on A/C
    - LP: #516325
  * tg3: Add 57788, remove 57720
    - LP: #515390
  * HID: ignore all recent SoundGraph iMON devices
    - LP: #488443
  * Input: ALPS - add interleaved protocol support (Dell E6x00 series)
    - LP: #296610
  * acerhdf: limit modalias matching to supported
    - LP: #509730
  * ASoC: Do not write to invalid registers on the wm9712.
    - LP: #509730
  * cifs: NULL out tcon, pSesInfo, and srvTcp pointers when chasing DFS
    referrals
    - LP: #509730
  * clockevents: Prevent clockevent_devices list corruption on cpu hotplug
    - LP: #509730
  * dma: at_hdmac: correct incompatible type for argument 1 of
    'spin_lock_bh'
    - LP: #509730
  * drivers/net/usb: Correct code taking the size of a pointer
    - LP: #509730
  * Libertas: fix buffer overflow in lbs_get_essid()
    - LP: #509730
  * md: Fix unfortunate interaction with evms
    - LP: #509730
  * pata_cmd64x: fix overclocking of UDMA0-2 modes
    - LP: #509730
  * pata_hpt3x2n: fix clock turnaround
    - LP: #509730
  * SCSI: fc class: fix fc_transport_init error handling
    - LP: #509730
  * sound: sgio2audio/pdaudiocf/usb-audio: initialize PCM buffer
    - LP: #509730
  * USB: emi62: fix crash when trying to load EMI 6|2 firmware
    - LP: #509730
  * USB: Fix a bug on appledisplay.c regarding signedness
    - LP: #509730
  * USB: musb: gadget_ep0: avoid SetupEnd interrupt
    - LP: #509730
  * USB: option: support hi speed for modem Haier CE100
    - LP: #490068, #509730
  * x86, cpuid: Add "volatile" to asm in native_cpuid()
    - LP: #509730
  * e100: Use pci pool to work around GFP_ATOMIC order 5 memory allocation
    failure
    - LP: #509730
  * e100: Fix broken cbs accounting due to missing memset.
    - LP: #509730
  * hostap: Revert a toxic part of the conversion to net_device_ops
    - LP: #509730
  * hwmon: (fschmd) Fix check on unsigned in watchdog_write()
    - LP: #509730
  * hwmon: (sht15) Off-by-one error in array index + incorrect constants
    - LP: #509730
  * i2c/tsl2550: Fix...

Read more...

Changed in linux (Ubuntu Karmic):
status: Fix Committed → Fix Released
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