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[Launchpad Bug Tracker <1163720@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux - 3.8.0-35.50

---------------
linux (3.8.0-35.50) raring; urgency=low

  [Steve Conklin]

  * Release Tracking Bug
    - LP: #1257102

  [ Andy Whitcroft ]

  * [Config] CONFIG_DEBUG_BUGVERBOSE=y
    - LP: #1252353

  [ Kamal Mostafa ]

  * SAUCE: (no-up) drm/i915: i915.disable_pch_pwm overrides PCH_PWM_ENABLE
    quirk
    - LP: #1163720

  [ Upstream Kernel Changes ]

  * PCI: Allow PCIe Capability link-related register access for switches
    - LP: #1252987
  * PCI: Remove PCIe Capability version checks
    - LP: #1252987
  * PCI: Support PCIe Capability Slot registers only for ports with slots
    - LP: #1252987
  * ACPICA: Interpreter: Fix Store() when implicit conversion is not
    possible.
    - LP: #1257026
  * ACPICA: DeRefOf operator: Update to fully resolve FieldUnit and
    BufferField refs.
    - LP: #1257026
  * ACPICA: Return error if DerefOf resolves to a null package element.
    - LP: #1257026
  * ACPICA: Fix for a Store->ArgX when ArgX contains a reference to a
    field.
    - LP: #1257026
  * vxlan: fix ip_select_ident skb parameter
    - LP: #1257026
  * tcp: TSO packets automatic sizing
    - LP: #1257026
  * tcp: TSQ can use a dynamic limit
    - LP: #1257026
  * net: Add skb_unclone() helper function.
    - LP: #1257026
  * ipv6: fix warning in xfrm6_mode_tunnel_input
    - LP: #1257026
  * ip: fix warning in xfrm4_mode_tunnel_input
    - LP: #1257026
  * tcp: must unclone packets before mangling them
    - LP: #1257026
  * tcp: do not forget FIN in tcp_shifted_skb()
    - LP: #1257026
  * net: do not call sock_put() on TIMEWAIT sockets
    - LP: #1257026
  * l2tp: fix kernel panic when using IPv4-mapped IPv6 addresses
    - LP: #1257026
  * l2tp: Fix build warning with ipv6 disabled.
    - LP: #1257026
  * net: mv643xx_eth: update statistics timer from timer context only
    - LP: #1257026
  * net: mv643xx_eth: fix orphaned statistics timer crash
    - LP: #1257026
  * net: heap overflow in __audit_sockaddr()
    - LP: #1257026
  * proc connector: fix info leaks
    - LP: #1257026
  * ipv4: fix ineffective source address selection
    - LP: #1257026
  * can: dev: fix nlmsg size calculation in can_get_size()
    - LP: #1257026
  * net: secure_seq: Fix warning when CONFIG_IPV6 and CONFIG_INET are not
    selected
    - LP: #1257026
  * xen-netback: Don't destroy the netdev until the vif is shut down
    - LP: #1257026
  * net: vlan: fix nlmsg size calculation in vlan_get_size()
    - LP: #1257026
  * vti: get rid of nf mark rule in prerouting
    - LP: #1257026
  * l2tp: must disable bh before calling l2tp_xmit_skb()
    - LP: #1257026
  * farsync: fix info leak in ioctl
    - LP: #1257026
  * unix_diag: fix info leak
    - LP: #1257026
  * connector: use nlmsg_len() to check message length
    - LP: #1257026
  * virtio-net: don't respond to cpu hotplug notifier if we're not ready
    - LP: #1257026
  * bridge: Correctly clamp MAX forward_delay when enabling STP
    - LP: #1257026
  * net: dst: provide accessor function to dst->xfrm
    - LP: #1257026
  * sctp: Use software crc32 checksum when xfrm transform will happen.
    - LP: #1257026
  * sctp: Perform software checksum if packet has to be fragmented.
    - LP: #1257026
  * wanxl: fix info leak in ioctl
    - LP: #1257026
  * net: unix: inherit SOCK_PASS{CRED, SEC} flags from socket to fix race
    - LP: #1257026
  * net: fix cipso packet validation when !NETLABEL
    - LP: #1257026
  * inet: fix possible memory corruption with UDP_CORK and UFO
    - LP: #1257026
  * davinci_emac.c: Fix IFF_ALLMULTI setup
    - LP: #1257026
  * jfs: fix error path in ialloc
    - LP: #1257026
  * cfg80211: fix warning when using WEXT for IBSS
    - LP: #1257026
  * mac80211: drop spoofed packets in ad-hoc mode
    - LP: #1257026
  * mac80211: use sta_info_get_bss() for nl80211 tx and client probing
    - LP: #1257026
  * mac80211: update sta->last_rx on acked tx frames
    - LP: #1257026
  * mwifiex: fix SDIO interrupt lost issue
    - LP: #1257026
  * ath9k: fix tx queue scheduling after channel changes
    - LP: #1257026
  * libata: make ata_eh_qc_retry() bump scmd->allowed on bogus failures
    - LP: #1257026
  * mac80211: correctly close cancelled scans
    - LP: #1257026
  * can: flexcan: fix mx28 detection by rearanging OF match table
    - LP: #1257026
  * rtlwifi: rtl8192cu: Fix error in pointer arithmetic
    - LP: #1257026
  * wireless: radiotap: fix parsing buffer overrun
    - LP: #1257026
  * mac80211: fix crash if bitrate calculation goes wrong
    - LP: #1257026
  * drm/vmwgfx: Don't put resources with invalid id's on lru list
    - LP: #1257026
  * drm/vmwgfx: Don't kill clients on VT switch
    - LP: #1257026
  * ecryptfs: Fix memory leakage in keystore.c
    - LP: #1257026
  * drm: Prevent overwriting from userspace underallocating core ioctl
    structs
    - LP: #1257026
  * drm: Pad drm_mode_get_connector to 64-bit boundary
    - LP: #1257026
  * drm/radeon/atom: workaround vbios bug in transmitter table on rs780
    - LP: #1257026
  * md: Fix skipping recovery for read-only arrays.
    - LP: #1257026
  * md: avoid deadlock when md_set_badblocks.
    - LP: #1257026
  * raid5: set bio bi_vcnt 0 for discard request
    - LP: #1257026
  * raid5: avoid finding "discard" stripe
    - LP: #1257026
  * target/pscsi: fix return value check
    - LP: #1257026
  * vhost/scsi: Fix incorrect usage of get_user_pages_fast write parameter
    - LP: #1257026
  * parisc: Do not crash 64bit SMP kernels on machines with >= 4GB RAM
    - LP: #1257026
  * dmi: add support for exact DMI matches in addition to substring
    matching
    - LP: #1257026
  * clk: fixup argument order when setting VCO parameters
    - LP: #1257026
  * xtensa: don't use alternate signal stack on threads
    - LP: #1257026
  * ALSA: hda - Fix unbalanced runtime PM refcount after S3/S4
    - LP: #1257026
  * ASoC: dapm: Fix source list debugfs outputs
    - LP: #1257026
  * drm/i915: quirk away phantom LVDS on Intel's D510MO mainboard
    - LP: #1257026
  * drm/i915: quirk away phantom LVDS on Intel's D525MW mainboard
    - LP: #1257026
  * drm/i915: No LVDS hardware on Intel D410PT and D425KT
    - LP: #1257026
  * mm: Wait for THP migrations to complete during NUMA hinting faults
    - LP: #1257026
  * mm: numa: cleanup flow of transhuge page migration
    - LP: #1257026
  * mm: Prevent parallel splits during THP migration
    - LP: #1257026
  * mm: numa: Sanitize task_numa_fault() callsites
    - LP: #1257026
  * mm: Close races between THP migration and PMD numa clearing
    - LP: #1257026
  * mm: Account for a THP NUMA hinting update as one PTE update
    - LP: #1257026
  * Fix a few incorrectly checked [io_]remap_pfn_range() calls
    - LP: #1257026
  * ALSA: hda - Add a fixup for ASUS N76VZ
    - LP: #1257026
  * ASoC: wm_hubs: Add missing break in hp_supply_event()
    - LP: #1257026
  * uml: check length in exitcode_proc_write()
    - LP: #1257026
  * staging: ozwpan: prevent overflow in oz_cdev_write()
    - LP: #1257026
  * aacraid: missing capable() check in compat ioctl
    - LP: #1257026
  * staging: wlags49_h2: buffer overflow setting station name
    - LP: #1257026
  * Staging: bcm: info leak in ioctl
    - LP: #1257026
  * Staging: sb105x: info leak in mp_get_count()
    - LP: #1257026
  * ALSA: fix oops in snd_pcm_info() caused by ASoC DPCM
    - LP: #1257026
  * lib/scatterlist.c: don't flush_kernel_dcache_page on slab page
    - LP: #1257026
  * scripts/kallsyms: filter symbols not in kernel address space
    - LP: #1257026
  * xen-netback: Handle backend state transitions in a more robust way
    - LP: #1257026
  * xen-netback: transition to CLOSED when removing a VIF
    - LP: #1257026
  * Linux 3.8.13.13
    - LP: #1257026
 -- Steve Conklin <sconklin@xxxxxxxxxxxxx>   Mon, 02 Dec 2013 16:56:50 -0600

** Changed in: linux (Ubuntu Saucy)
       Status: Fix Committed => Fix Released

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2013-2929

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https://bugs.launchpad.net/bugs/1163720

Title:
  Brightness control broken on XPS13 and 3.8.0-16, 3.8.0-22 and
  3.11.0-12

Status in The Linux Kernel:
  Incomplete
Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux” source package in Precise:
  Fix Released
Status in “linux” source package in Quantal:
  Fix Released
Status in “linux” source package in Raring:
  Fix Released
Status in “linux” source package in Saucy:
  Fix Released

Bug description:
  Since 3.8.0-16, the brightness control doesn’t work anymore.
  The popup is displayed, so the shortcut keys do work correctly, but it has no effect on the actual brightness of the screen.

  Switching back to 3.8.0-15 solves the issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-16-generic 3.8.0-16.26
  ProcVersionSignature: Ubuntu 3.8.0-16.26-generic 3.8.5
  Uname: Linux 3.8.0-16-generic x86_64
  ApportVersion: 2.9.2-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  coucouf    1837 F.... pulseaudio
  Date: Wed Apr  3 08:29:58 2013
  DistributionChannelDescriptor:
   # This is a distribution channel descriptor
   # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-precise-amd64-20120703-2
  HibernationDevice: RESUME=UUID=e49e9eae-f16f-45bb-ad2c-b6da5c0c6f6d
  InstallationDate: Installed on 2013-03-23 (10 days ago)
  InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary 20120703-15:08
  MachineType: Dell Inc. Dell System XPS L322X
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-16-generic root=UUID=3f6858e1-d8f5-44c4-b8e9-5ab8b9639ba7 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-16-generic N/A
   linux-backports-modules-3.8.0-16-generic  N/A
   linux-firmware                            1.104
  SourcePackage: linux
  UpgradeStatus: Upgraded to raring on 2013-04-02 (0 days ago)
  dmi.bios.date: 01/22/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A07
  dmi.board.name: 0PJHXN
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA07:bd01/22/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn0PJHXN:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Dell System XPS L322X
  dmi.sys.vendor: Dell Inc.

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