Webcam is not detected on some Pather Point-based hardware

[Keng-Yu Lin]

On some Panther Point-based machine, the webcam is not detected.

The webcam can be detected after reverting the patch:

commit 69e848c2090aebba5698a1620604c7dccb448684
Author: Sarah Sharp <email address hidden>
Date: Tue Feb 22 09:57:15 2011 -0800

    Intel xhci: Support EHCI/xHCI port switching.

[Keng-Yu Lin (lexical)]

Patch arrived in USB subsys. git tree. Will appear in the mainline after Linus' merge:

http://git.kernel.org/?p=linux/kernel/git/gregkh/usb.git;a=shortlog;h=refs/heads/usb-linus

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 3.5.0-14.17

---------------
linux (3.5.0-14.17) quantal; urgency=low

  [ Keng-Yu Lin ]

  * SAUCE: Intel xhci: Only switch the switchable ports
    - LP: #1034814
 -- Leann Ogasawara <email address hidden> Wed, 12 Sep 2012 08:34:21 -0700

[Luis Henriques (henrix)]

This bug is awaiting verification that the kernel for Precise in -proposed solves the problem (3.2.0-32.51). Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-precise' to 'verification-done-precise'.

If verification is not done by one week from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Luis Henriques (henrix)]

Hi Keng-Yu, do you have access to this hardware? If so, could you please test the new Precise kernel in -proposed to verify it is now working? Thanks.

[Keng-Yu Lin (lexical)]

The bug is fixed with the -propose kernel.

[Adam Conrad (adconrad)]

The verification of this Stable Release Update has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regresssions.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 3.2.0-32.51

---------------
linux (3.2.0-32.51) precise-proposed; urgency=low

  [Luis Henriques]

  * Release Tracking Bug
    - LP: #1056036

  [ Keng-Yu Lin ]

  * SAUCE: Intel xhci: Only switch the switchable ports
    - LP: #1034814

  [ Kyle Fazzari ]

  * SAUCE: input: Cypress PS/2 Trackpad fix disabling tap-to-click
    - LP: #1048816

  [ Seth Forshee ]

  * SAUCE: Input: synaptics - Adjust threshold for treating position values
    as negative
    - LP: #1046512

  [ Stefan Bader ]

  * Revert "SAUCE: Force xsave off on older Xen hypervisors"
    - LP: #1044550

  [ Upstream Kernel Changes ]

  * Revert "HID: wiimote: fix invalid power_supply_powers call"
    - LP: #1048605
  * Revert "drm/radeon: fix bo creation retry path"
    - LP: #1049899
  * HID: wiimote: fix invalid power_supply_powers call
    - LP: #1048605
  * HID: add ASUS AIO keyboard model AK1D
    - LP: #1027789, #1049899
  * nfs: tear down caches in nfs_init_writepagecache when allocation fails
    - LP: #1049899
  * NFS: Use kcalloc() when allocating arrays
    - LP: #1049899
  * NFSv4.1 fix page number calculation bug for filelayout decode buffers
    - LP: #1049899
  * fix page number calculation bug for block layout decode buffer
    - LP: #1049899
  * pnfs: defer release of pages in layoutget
    - LP: #1049899
  * ext4: avoid kmemcheck complaint from reading uninitialized memory
    - LP: #1049899
  * fuse: verify all ioctl retry iov elements
    - LP: #1049899
  * Bluetooth: Fix legacy pairing with some devices
    - LP: #1049899
  * xhci: Increase reset timeout for Renesas 720201 host.
    - LP: #1049899
  * xhci: Add Etron XHCI_TRUST_TX_LENGTH quirk.
    - LP: #1049899
  * USB: ftdi_sio: Add VID/PID for Kondo Serial USB
    - LP: #1049899
  * USB: option: Add Vodafone/Huawei K5005 support
    - LP: #1049899
  * USB: add USB_VENDOR_AND_INTERFACE_INFO() macro
    - LP: #1049899
  * USB: support the new interfaces of Huawei Data Card devices in option
    driver
    - LP: #1049899
  * usb: serial: mos7840: Fixup mos7840_chars_in_buffer()
    - LP: #1049899
  * usb: gadget: u_ether: fix kworker 100% CPU issue with still used
    interfaces in eth_stop
    - LP: #1049899
  * ARM: 7483/1: vfp: only advertise VFPv4 in hwcaps if CONFIG_VFPv3 is
    enabled
    - LP: #1049899
  * ARM: 7488/1: mm: use 5 bits for swapfile type encoding
    - LP: #1049899
  * ARM: 7489/1: errata: fix workaround for erratum #720789 on UP systems
    - LP: #1049899
  * drm/i915: ignore eDP bpc settings from vbt
    - LP: #1049899
  * ALSA: hda - fix Copyright debug message
    - LP: #1049899
  * sched: fix divide by zero at {thread_group,task}_times
    - LP: #1049899
  * ath9k: fix decrypt_error initialization in ath_rx_tasklet()
    - LP: #1049899
  * drm/nvd0/disp: mask off high 16 bit of negative cursor x-coordinate
    - LP: #1049899
  * drm/i915: reorder edp disabling to fix ivb MacBook Air
    - LP: #1049899
  * audit: don't free_chunk() after fsnotify_add_mark()
    - LP: #1049899
  * audit: fix refcounting in audit-tree
    - LP: #1049899
  * vfs: canonicalize create mode in build_open_flags()
    - LP: #1049899
  * PCI: EHCI: Fix crash d...