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[Launchpad Bug Tracker <1231305@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux-lts-saucy -
3.11.0-14.21~precise1

---------------
linux-lts-saucy (3.11.0-14.21~precise1) precise; urgency=low

  [Brad Figg]

  * Release Tracking Bug
    - LP: #1250660

  [ Anthony Wong ]

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

  [ Colin Ian King ]

  * SAUCE: eCryptfs: fix 32 bit corruption issue
    - LP: #1243636

  [ Ming Lei ]

  * SAUCE: ext4: fix performance regression in ext4_writepages
    - LP: #1242812

  [ Upstream Kernel Changes ]

  * Revert "bridge: only expire the mdb entry when query is received"
    - LP: #1249081
  * ext4: fix performance regression in writeback of random writes
    - LP: #1242812
  * be2net: pass if_id for v1 and V2 versions of TX_CREATE cmd
    - LP: #1234019
  * tcp: TSO packets automatic sizing
    - LP: #1249081
  * tcp: TSQ can use a dynamic limit
    - LP: #1249081
  * tcp: must unclone packets before mangling them
    - LP: #1249081
  * tcp: do not forget FIN in tcp_shifted_skb()
    - LP: #1249081
  * tcp: fix incorrect ca_state in tail loss probe
    - LP: #1249081
  * net: do not call sock_put() on TIMEWAIT sockets
    - LP: #1249081
  * batman-adv: set up network coding packet handlers during module init
    - LP: #1249081
  * l2tp: fix kernel panic when using IPv4-mapped IPv6 addresses
    - LP: #1249081
  * l2tp: Fix build warning with ipv6 disabled.
    - LP: #1249081
  * net: mv643xx_eth: update statistics timer from timer context only
    - LP: #1249081
  * net: mv643xx_eth: fix orphaned statistics timer crash
    - LP: #1249081
  * net: heap overflow in __audit_sockaddr()
    - LP: #1249081
  * sit: amend "allow to use rtnl ops on fb tunnel"
    - LP: #1249081
  * proc connector: fix info leaks
    - LP: #1249081
  * ipv4: fix ineffective source address selection
    - LP: #1249081
  * can: dev: fix nlmsg size calculation in can_get_size()
    - LP: #1249081
  * net: secure_seq: Fix warning when CONFIG_IPV6 and CONFIG_INET are not
    selected
    - LP: #1249081
  * xen-netback: Don't destroy the netdev until the vif is shut down
    - LP: #1249081
  * net/mlx4_en: Rename name of mlx4_en_rx_alloc members
    - LP: #1249081
  * net/mlx4_en: Fix pages never dma unmapped on rx
    - LP: #1249081
  * net: vlan: fix nlmsg size calculation in vlan_get_size()
    - LP: #1249081
  * bridge: update mdb expiration timer upon reports.
    - LP: #1249081
  * vti: get rid of nf mark rule in prerouting
    - LP: #1249081
  * l2tp: must disable bh before calling l2tp_xmit_skb()
    - LP: #1249081
  * netem: update backlog after drop
    - LP: #1249081
  * netem: free skb's in tree on reset
    - LP: #1249081
  * farsync: fix info leak in ioctl
    - LP: #1249081
  * unix_diag: fix info leak
    - LP: #1249081
  * connector: use nlmsg_len() to check message length
    - LP: #1249081
  * bnx2x: record rx queue for LRO packets
    - LP: #1249081
  * virtio-net: don't respond to cpu hotplug notifier if we're not ready
    - LP: #1249081
  * virtio-net: refill only when device is up during setting queues
    - LP: #1249081
  * bridge: Correctly clamp MAX forward_delay when enabling STP
    - LP: #1249081
  * net: dst: provide accessor function to dst->xfrm
    - LP: #1249081
  * sctp: Use software crc32 checksum when xfrm transform will happen.
    - LP: #1249081
  * sctp: Perform software checksum if packet has to be fragmented.
    - LP: #1249081
  * wanxl: fix info leak in ioctl
    - LP: #1249081
  * net: unix: inherit SOCK_PASS{CRED, SEC} flags from socket to fix race
    - LP: #1249081
  * net: fix cipso packet validation when !NETLABEL
    - LP: #1249081
  * inet: fix possible memory corruption with UDP_CORK and UFO
    - LP: #1249081
  * ipv6: always prefer rt6i_gateway if present
    - LP: #1249081
  * ipv6: fill rt6i_gateway with nexthop address
    - LP: #1249081
  * netfilter: nf_conntrack: fix rt6i_gateway checks for H.323 helper
    - LP: #1249081
  * ipv6: probe routes asynchronous in rt6_probe
    - LP: #1249081
  * davinci_emac.c: Fix IFF_ALLMULTI setup
    - LP: #1249081
  * ARM: 7851/1: check for number of arguments in
    syscall_get/set_arguments()
    - LP: #1249081
  * ARM: integrator: deactivate timer0 on the Integrator/CP
    - LP: #1249081
  * ext[34]: fix double put in tmpfile
    - LP: #1249081
  * gpio/lynxpoint: check if the interrupt is enabled in IRQ handler
    - LP: #1249081
  * dm snapshot: fix data corruption
    - LP: #1249081
    - CVE-2013-4299
  * i2c: ismt: initialize DMA buffer
    - LP: #1249081
  * mm: migration: do not lose soft dirty bit if page is in migration state
    - LP: #1249081
  * mm/zswap: bugfix: memory leak when re-swapon
    - LP: #1249081
  * mm: fix BUG in __split_huge_page_pmd
    - LP: #1249081
  * ALSA: us122l: Fix pcm_usb_stream mmapping regression
    - LP: #1249081
  * ALSA: hda - Fix inverted internal mic not indicated on some machines
    - LP: #1227491, #1239392, #1249081
  * writeback: fix negative bdi max pause
    - LP: #1249081
  * w1 - call request_module with w1 master mutex unlocked
    - LP: #1249081
  * wireless: radiotap: fix parsing buffer overrun
    - LP: #1249081
  * wireless: cw1200: acquire hwbus lock around cw1200_irq_handler() call.
    - LP: #1249081
  * serial: vt8500: add missing braces
    - LP: #1249081
  * USB: serial: ti_usb_3410_5052: add Abbott strip port ID to combined
    table as well.
    - LP: #1249081
  * USB: serial: option: add support for Inovia SEW858 device
    - LP: #1249081
  * usb: serial: option: blacklist Olivetti Olicard200
    - LP: #1249081
  * Linux 3.11.7
    - LP: #1249081
  * tg3: Add support for new 57786 device id.
    - LP: #1242610
 -- Brad Figg <brad.figg@xxxxxxxxxxxxx>   Tue, 12 Nov 2013 08:10:21 -0800

** Changed in: linux (Ubuntu Raring)
       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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