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[Launchpad Bug Tracker <1231305@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux - 3.8.0-34.49

---------------
linux (3.8.0-34.49) raring; urgency=low

  [Brad Figg]

  * Release Tracking Bug
    - LP: #1250558

  [ Anthony Wong ]

  * SAUCE: Work around broken ACPI backlight on Dell Inspiron 5537
    - LP: #1231305

  [ Upstream Kernel Changes ]

  * be2net: pass if_id for v1 and V2 versions of TX_CREATE cmd
    - LP: #1234019
  * random: run random_int_secret_init() run after all late_initcalls
    - LP: #1249058
  * tile: use a more conservative __my_cpu_offset in CONFIG_PREEMPT
    - LP: #1249058
  * ALSA: snd-usb-usx2y: remove bogus frame checks
    - LP: #1249058
  * drm/i915/hsw: Disable L3 caching of atomic memory operations.
    - LP: #1249058
  * drm/i915: Only apply DPMS to the encoder if enabled
    - LP: #1249058
  * ALSA: hda - hdmi: Fix channel map switch not taking effect
    - LP: #1249058
  * ALSA: hda - Add fixup for ASUS N56VZ
    - LP: #1249058
  * hwmon: (applesmc) Always read until end of data
    - LP: #1249058
  * drm/radeon: fix typo in CP DMA register headers
    - LP: #1249058
  * drm/radeon: fix hw contexts for SUMO2 asics
    - LP: #1249058
  * drm/radeon: forever loop on error in radeon_do_test_moves()
    - LP: #1249058
  * i2c: omap: Clear ARDY bit twice
    - LP: #1249058
  * KVM: PPC: Book3S HV: Fix typo in saving DSCR
    - LP: #1249058
  * random: allow architectures to optionally define random_get_entropy()
    - LP: #1249058
  * Btrfs: use right root when checking for hash collision
    - LP: #1249058
  * compiler-gcc4.h: Reorder macros based upon gcc ver
    - LP: #1249058
  * compiler-gcc.h: Add gcc-recommended GCC_VERSION macro
    - LP: #1249058
  * compiler/gcc4: Add quirk for 'asm goto' miscompilation bug
    - LP: #1249058
  * ALSA: hda - Fix microphone for Sony VAIO Pro 13 (Haswell model)
    - LP: #1227093, #1249058
  * ext4: fix memory leak in xattr
    - LP: #1249058
  * vfs: allow O_PATH file descriptors for fstatfs()
    - LP: #1249058
  * parisc: fix interruption handler to respect pagefault_disable()
    - LP: #1249058
  * xen-blkfront: use a different scatterlist for each request
    - LP: #1249058
  * can: flexcan: fix flexcan_chip_start() on imx6
    - LP: #1249058
  * can: flexcan: flexcan_chip_start: fix regression, mark one MB for TX
    and abort pending TX
    - LP: #1249058
  * caif: Add missing braces to multiline if in cfctrl_linkup_request
    - LP: #1249058
  * tcp: Add missing braces to do_tcp_setsockopt
    - LP: #1249058
  * ipv6/exthdrs: accept tlv which includes only padding
    - LP: #1249058
  * net: fib: fib6_add: fix potential NULL pointer dereference
    - LP: #1249058
  * net: sctp: fix smatch warning in sctp_send_asconf_del_ip
    - LP: #1249058
  * net: flow_dissector: fix thoff for IPPROTO_AH
    - LP: #1249058
  * net_sched: htb: fix a typo in htb_change_class()
    - LP: #1249058
  * r8169: enforce RX_MULTI_EN for the 8168f.
    - LP: #1249058
  * netpoll: fix NULL pointer dereference in netpoll_cleanup
    - LP: #1249058
  * net: sctp: fix ipv6 ipsec encryption bug in sctp_v6_xmit
    - LP: #1249058
  * xen-netback: count number required slots for an skb more carefully
    - LP: #1249058
  * resubmit bridge: fix message_age_timer calculation
    - LP: #1249058
  * bridge: Clamp forward_delay when enabling STP
    - LP: #1249058
  * bridge: use br_port_get_rtnl within rtnl lock
    - LP: #1249058
  * bridge: fix NULL pointer deref of br_port_get_rcu
    - LP: #1249058
  * ip6_tunnels: raddr and laddr are inverted in nl msg
    - LP: #1249058
  * net: sctp: rfc4443: do not report ICMP redirects to user space
    - LP: #1249058
  * net:dccp: do not report ICMP redirects to user space
    - LP: #1249058
  * ip: use ip_hdr() in __ip_make_skb() to retrieve IP header
    - LP: #1249058
  * ip: generate unique IP identificator if local fragmentation is allowed
    - LP: #1249058
  * ipv6: udp packets following an UFO enqueued packet need also be handled
    by UFO
    - LP: #1249058
  * via-rhine: fix VLAN priority field (PCP, IEEE 802.1p)
    - LP: #1249058
  * dm9601: fix IFF_ALLMULTI handling
    - LP: #1249058
  * bonding: Fix broken promiscuity reference counting issue
    - LP: #1249058
  * ipv6: gre: correct calculation of max_headroom
    - LP: #1249058
  * ipv4 igmp: use in_dev_put in timer handlers instead of __in_dev_put
    - LP: #1249058
  * ipv6 mcast: use in6_dev_put in timer handlers instead of __in6_dev_put
    - LP: #1249058
  * ll_temac: Reset dma descriptors indexes on ndo_open
    - LP: #1249058
  * sit: allow to use rtnl ops on fb tunnel
    - LP: #1249058
  * ip6tnl: allow to use rtnl ops on fb tunnel
    - LP: #1249058
  * esp_scsi: Fix tag state corruption when autosensing.
    - LP: #1249058
  * sparc64: Fix ITLB handler of null page
    - LP: #1249058
  * sparc64: Remove RWSEM export leftovers
    - LP: #1249058
  * sparc64: Fix off by one in trampoline TLB mapping installation loop.
    - LP: #1249058
  * sparc64: Fix not SRA'ed %o5 in 32-bit traced syscall
    - LP: #1249058
  * sparc32: Fix exit flag passed from traced sys_sigreturn
    - LP: #1249058
  * cifs: Fix inability to write files >2GB to SMB2/3 shares
    - LP: #1249058
  * xhci: quirk for extra long delay for S4
    - LP: #1249058
  * xhci: Fix spurious wakeups after S5 on Haswell
    - LP: #1249058
  * USB: support new huawei devices in option.c
    - LP: #1249058
  * USB: serial: ti_usb_3410_5052: add Abbott strip port ID to combined
    table as well.
    - LP: #1249058
  * USB: serial: option: add support for Inovia SEW858 device
    - LP: #1249058
  * ARM: 7851/1: check for number of arguments in
    syscall_get/set_arguments()
    - LP: #1249058
  * USB: quirks.c: add one device that cannot deal with suspension
    - LP: #1249058
  * ALSA: us122l: Fix pcm_usb_stream mmapping regression
    - LP: #1249058
  * dm snapshot: fix data corruption
    - LP: #1249058
    - CVE-2013-4299
  * USB: quirks: add touchscreen that is dazzeled by remote wakeup
    - LP: #1249058
  * serial: vt8500: Fix range-checking on vt8500_uart_ports
    - LP: #1249058
  * serial: vt8500: add missing braces
    - LP: #1249058
  * usb: serial: option: blacklist Olivetti Olicard200
    - LP: #1249058
  * usb-storage: add quirk for mandatory READ_CAPACITY_16
    - LP: #1249058
  * writeback: fix negative bdi max pause
    - LP: #1249058
  * mm: fix BUG in __split_huge_page_pmd
    - LP: #1249058
  * Linux 3.8.13.12
    - LP: #1249058
 -- Brad Figg <brad.figg@xxxxxxxxxxxxx>   Tue, 12 Nov 2013 09:08:50 -0800

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

-- 
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https://bugs.launchpad.net/bugs/1231305

Title:
  Unable to adjust screen brightness with Intel Haswell-ULT Integrated
  Graphics Controller [8086:0a26]

Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux-lts-raring” package in Ubuntu:
  Invalid
Status in “linux-lts-saucy” package in Ubuntu:
  Invalid
Status in “linux” source package in Precise:
  Invalid
Status in “linux-lts-raring” source package in Precise:
  Fix Released
Status in “linux-lts-saucy” source package in Precise:
  Fix Released
Status in “linux” source package in Raring:
  Fix Released
Status in “linux-lts-raring” source package in Raring:
  Invalid
Status in “linux-lts-saucy” source package in Raring:
  Invalid
Status in “linux” source package in Saucy:
  Fix Released
Status in “linux-lts-raring” source package in Saucy:
  Invalid
Status in “linux-lts-saucy” source package in Saucy:
  Invalid

Bug description:
  == SRU Justification ==

  Impact:
  Buggy ACPI table causes brightness unable to be adjusted, which means
  certification testing also fails.

  Fix:
  Quirk this model so that it no longer follows the Win8 AML path.

  Testcase:
  Test brightness adjustment on the machine. Already verified by test
  kernel on LP#1231305.

  --------

  CID: 201304-13196 Dell Inspiron 5537

  Unable to adjust the screen brightness on this system.
  Tested with 3.8.0-29 and 3.8.0-30 kernel.

  Step:
  1. Install 12.04.3 and boot to desktop.
  2. Try to adjust brightness with the brightness keys.
  2. Try to adjust brightness in "Brightness and Lock" of System settings.

  Expected result:
  Brightness could be adjusted by using the brightness keys and by adjusting in "Brightness and Lock" of System settings.

  Actual result:
  1. Brightness keys events (keycode 224/225) were captured, but the brightness cannot be adjusted. Brightness level indiciator only changes between Max and Max - 1
  2. Brightness cannot be adjusted in "Brightness and Lock" of System settings.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.8.0-30-generic 3.8.0-30.44~precise1
  ProcVersionSignature: Ubuntu 3.8.0-30.44~precise1-generic 3.8.13.6
  Uname: Linux 3.8.0-30-generic x86_64
  ApportVersion: 2.0.1-0ubuntu17.4
  Architecture: amd64
  Date: Thu Sep 26 03:22:41 2013
  InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1)
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: linux-lts-raring
  UpgradeStatus: No upgrade log present (probably fresh install)
  ---
  AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.8.0-30-generic.
  ApportVersion: 2.0.1-0ubuntu17.4
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 1: PCH [HDA Intel PCH], device 0: ALC283 Analog [ALC283 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ubuntu     1568 F.... pulseaudio
   /dev/snd/controlC0:  ubuntu     1568 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'MID'/'HDA Intel MID at 0xb0710000 irq 64'
     Mixer name	: 'Intel Haswell HDMI'
     Components	: 'HDA:80862807,80860101,00100000'
     Controls      : 21
     Simple ctrls  : 3
  Card1.Amixer.info:
   Card hw:1 'PCH'/'HDA Intel PCH at 0xb0714000 irq 65'
     Mixer name	: 'Realtek ALC283'
     Components	: 'HDA:10ec0283,102805e9,00100003'
     Controls      : 16
     Simple ctrls  : 7
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=a388e401-3402-40ed-bdb8-c40bbaeb1e5c
  InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1)
  IwConfig:
   eth0      no wireless extensions.

   lo        no wireless extensions.
  MachineType: Dell Inc. Inspiron 5537
  MarkForUpload: True
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-30-generic root=UUID=e724f925-9468-444f-987f-46d3c29b1ada ro quiet splash initcall_debug vt.handoff=7
  ProcVersionSignature: Ubuntu 3.8.0-30.44~precise1-generic 3.8.13.6
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-30-generic N/A
   linux-backports-modules-3.8.0-30-generic  N/A
   linux-firmware                            1.79.6
  RfKill:
   1: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
  StagingDrivers: rts5139
  Tags:  precise running-unity staging
  Uname: Linux 3.8.0-30-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 04/10/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: X12
  dmi.board.name: Inspiron 5537
  dmi.board.vendor: Dell Inc.
  dmi.board.version: X12
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: X12
  dmi.modalias: dmi:bvnDellInc.:bvrX12:bd04/10/2013:svnDellInc.:pnInspiron5537:pvr1747:rvnDellInc.:rnInspiron5537:rvrX12:cvnDellInc.:ct8:cvrX12:
  dmi.product.name: Inspiron 5537
  dmi.product.version: 1747
  dmi.sys.vendor: Dell Inc.

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