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[Launchpad Bug Tracker <1163720@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux - 3.11.0-15.23

---------------
linux (3.11.0-15.23) saucy; urgency=low

  [Brad Figg]

  * Release Tracking Bug
    - LP: #1259259

  [ Tim Gardner ]

  * [Config] Build-in ohci-pci
    - LP: #1244176

linux (3.11.0-15.22) saucy; urgency=low

  [Brad Figg]

  * Release Tracking Bug
    - LP: #1257092

  [ Andy Whitcroft ]

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

  [ Benjamin Tissoires ]

  * SAUCE: (no-up) HID: appleir: force input to be set
    - LP: #1244505

  [ John Johansen ]

  * SAUCE: (no-up) apparmor: Fix tasks not subject to, reloaded policy
    - LP: #1236455

  [ Kamal Mostafa ]

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

  [ Manoj Iyer ]

  * SAUCE: Enable earlyprintk via the PL011.
    - LP: #1248233

  [ Paolo Pisati ]

  * [Config] armhf: RTC_DRV_PL031=y
    - LP: #1252242
  * [Config] armhf: CPU_FREQ=y && ARM_HIGHBANK_CPUFREQ=y
    - LP: #1249397

  [ Rob Herring ]

  * [Config] armhf: PSTORE_RAM=y and PSTORE_CONSOLE=y
    - LP: #1248492
  * SAUCE: net: calxedaxgmac: add mac address learning
    - LP: #1248233

  [ Tim Gardner ]

  * [Debian] Re-sign modules after debug objcopy
    - LP: #1253155

  [ Upstream Kernel Changes ]

  * Revert "rt2x00pci: Use PCI MSIs whenever possible"
    - LP: #1257037
  * Revert "epoll: use freezable blocking call"
    - LP: #1257037
  * Revert "select: use freezable blocking call"
    - LP: #1257037
  * Revert "ima: policy for RAMFS"
    - LP: #1257037
  * ARM: tlb: don't perform inner-shareable invalidation for local TLB ops
    - LP: #1239800
  * ARM: 7855/1: Add check for Cortex-A15 errata 798181 ECO
    - LP: #1239800
  * mfd: rtsx: Modify rts5249_optimize_phy
    - LP: #1255297
  * usb: musb: start musb on the udc side, too
    - LP: #1257037
  * usb-storage: add quirk for mandatory READ_CAPACITY_16
    - LP: #1257037
  * USB: support new huawei devices in option.c
    - LP: #1257037
  * USB: quirks.c: add one device that cannot deal with suspension
    - LP: #1257037
  * USB: quirks: add touchscreen that is dazzeled by remote wakeup
    - LP: #1257037
  * USB: serial: ftdi_sio: add id for Z3X Box device
    - LP: #1257037
  * xhci: Don't enable/disable RWE on bus suspend/resume.
    - LP: #1257037
  * cifs: Fix inability to write files >2GB to SMB2/3 shares
    - LP: #1257037
  * x86: Update UV3 hub revision ID
    - LP: #1257037
  * cpufreq: s3c64xx: Rename index to driver_data
    - LP: #1257037
  * cpufreq / intel_pstate: Fix max_perf_pct on resume
    - LP: #1257037
  * bcache: Fixed incorrect order of arguments to bio_alloc_bioset()
    - LP: #1257037
  * HID: wiimote: add LEGO-wiimote VID
    - LP: #1257037
  * cgroup: fix to break the while loop in cgroup_attach_task() correctly
    - LP: #1257037
  * mac80211: correctly close cancelled scans
    - LP: #1257037
  * mac80211: drop spoofed packets in ad-hoc mode
    - LP: #1257037
  * mac80211: use sta_info_get_bss() for nl80211 tx and client probing
    - LP: #1257037
  * mac80211: update sta->last_rx on acked tx frames
    - LP: #1257037
  * mac80211: fix crash if bitrate calculation goes wrong
    - LP: #1257037
  * ath9k: fix tx queue scheduling after channel changes
    - LP: #1257037
  * cfg80211: use the correct macro to check for active monitor support
    - LP: #1257037
  * cfg80211: fix warning when using WEXT for IBSS
    - LP: #1257037
  * mwifiex: fix SDIO interrupt lost issue
    - LP: #1257037
  * rtlwifi: rtl8192cu: Fix error in pointer arithmetic
    - LP: #1257037
  * iwlwifi: mvm: call ieee80211_scan_completed when needed
    - LP: #1257037
  * iwlwifi: pcie: add SKUs for 6000, 6005 and 6235 series
    - LP: #1257037
  * jfs: fix error path in ialloc
    - LP: #1257037
  * can: at91-can: fix device to driver data mapping for platform devices
    - LP: #1257037
  * can: flexcan: fix mx28 detection by rearanging OF match table
    - LP: #1257037
  * can: flexcan: flexcan_chip_start: fix regression, mark one MB for TX
    and abort pending TX
    - LP: #1257037
  * SCSI: BusLogic: Fix an oops when intializing multimaster adapter
    - LP: #1257037
  * SCSI: sd: call blk_pm_runtime_init before add_disk
    - LP: #1257037
  * ecryptfs: Fix memory leakage in keystore.c
    - LP: #1257037
  * raid5: set bio bi_vcnt 0 for discard request
    - LP: #1257037
  * raid5: avoid finding "discard" stripe
    - LP: #1257037
  * libata: make ata_eh_qc_retry() bump scmd->allowed on bogus failures
    - LP: #1257037
  * md: avoid deadlock when md_set_badblocks.
    - LP: #1257037
  * md: Fix skipping recovery for read-only arrays.
    - LP: #1257037
  * target: Fix assignment of LUN in tracepoints
    - LP: #1257037
  * target/pscsi: fix return value check
    - LP: #1257037
  * vhost/scsi: Fix incorrect usage of get_user_pages_fast write parameter
    - LP: #1257037
  * clockevents: Sanitize ticks to nsec conversion
    - LP: #1257037
  * parisc: Do not crash 64bit SMP kernels on machines with >= 4GB RAM
    - LP: #1257037
  * scripts/kallsyms: filter symbols not in kernel address space
    - LP: #1257037
  * ARC: Incorrect mm reference used in vmalloc fault handler
    - LP: #1257037
  * ALSA: hda - Add missing initial vmaster hook at build_controls callback
    - LP: #1257037
  * ALSA: hda - Fix unbalanced runtime PM refcount after S3/S4
    - LP: #1257037
  * ALSA: hda - Add a fixup for ASUS N76VZ
    - LP: #1257037
  * ALSA: fix oops in snd_pcm_info() caused by ASoC DPCM
    - LP: #1257037
  * ASoC: wm_hubs: Add missing break in hp_supply_event()
    - LP: #1257037
  * ASoC: dapm: Fix source list debugfs outputs
    - LP: #1257037
  * staging: ozwpan: prevent overflow in oz_cdev_write()
    - LP: #1257037
  * Staging: bcm: info leak in ioctl
    - LP: #1257037
  * Staging: sb105x: info leak in mp_get_count()
    - LP: #1257037
  * staging: wlags49_h2: buffer overflow setting station name
    - LP: #1257037
  * uml: check length in exitcode_proc_write()
    - LP: #1257037
  * xtensa: don't use alternate signal stack on threads
    - LP: #1257037
  * mm: make generic_access_phys available for modules
    - LP: #1257037
  * uio: provide vm access to UIO_MEM_PHYS maps
    - LP: #1257037
  * Fix a few incorrectly checked [io_]remap_pfn_range() calls
    - LP: #1257037
  * lib/scatterlist.c: don't flush_kernel_dcache_page on slab page
    - LP: #1257037
  * aacraid: missing capable() check in compat ioctl
    - LP: #1257037
  * clk: fixup argument order when setting VCO parameters
    - LP: #1257037
  * clk: nomadik: set all timers to use 2.4 MHz TIMCLK
    - LP: #1257037
  * mm: numa: Do not account for a hinting fault if we raced
    - LP: #1257037
  * mm: Wait for THP migrations to complete during NUMA hinting faults
    - LP: #1257037
  * mm: Prevent parallel splits during THP migration
    - LP: #1257037
  * mm: numa: Sanitize task_numa_fault() callsites
    - LP: #1257037
  * mm: Close races between THP migration and PMD numa clearing
    - LP: #1257037
  * mm: Account for a THP NUMA hinting update as one PTE update
    - LP: #1257037
  * mm: /proc/pid/pagemap: inspect _PAGE_SOFT_DIRTY only on present pages
    - LP: #1257037
  * mm/pagewalk.c: fix walk_page_range() access of wrong PTEs
    - LP: #1257037
  * drm/vmwgfx: Don't put resources with invalid id's on lru list
    - LP: #1257037
  * drm/vmwgfx: Don't kill clients on VT switch
    - LP: #1257037
  * drm/i915: split aux_clock_divider logic in a separated function for
    reuse.
    - LP: #1257037
  * drm/i915: Retry DP aux_ch communications with a different clock after
    failure
    - LP: #1257037
  * drm: Prevent overwriting from userspace underallocating core ioctl
    structs
    - LP: #1257037
  * drm: Pad drm_mode_get_connector to 64-bit boundary
    - LP: #1257037
  * drm/radeon/atom: workaround vbios bug in transmitter table on rs780
    - LP: #1257037
  * drm/radeon: make missing smc ucode non-fatal (r7xx-SI)
    - LP: #1257037
  * drm/i915: Add HSW CRT output readout support
    - LP: #1257037
  * drm/i915: Add support for pipe_bpp readout
    - LP: #1257037
  * drm/i915: No LVDS hardware on Intel D410PT and D425KT
    - LP: #1257037
  * drm/i915: Fix the PPT fdi lane bifurcate state handling on ivb
    - LP: #1257037
  * mutex: Avoid gcc version dependent __builtin_constant_p() usage
    - LP: #1257037
  * seq_file: always update file->f_pos in seq_lseek()
    - LP: #1257037
  * NTB: Add Error Handling in ntb_device_setup
    - LP: #1257037
  * NTB: Correct Number of Scratch Pad Registers
    - LP: #1257037
  * NTB: Correct USD/DSD Identification
    - LP: #1257037
  * NTB: Correct debugfs to work with more than 1 NTB Device
    - LP: #1257037
  * Linux 3.11.8
    - LP: #1257037
  * net/mlx4_core: Fix call to __mlx4_unregister_mac
    - LP: #1257037
  * net: sctp: do not trigger BUG_ON in sctp_cmd_delete_tcb
    - LP: #1257037
  * net: flow_dissector: fail on evil iph->ihl
    - LP: #1257037
  * virtio-net: correctly handle cpu hotplug notifier during resuming
    - LP: #1257037
  * xen-netback: use jiffies_64 value to calculate credit timeout
    - LP: #1257037
  * cxgb3: Fix length calculation in write_ofld_wr() on 32-bit
    architectures
    - LP: #1257037
  * tcp: gso: fix truesize tracking
    - LP: #1257037
  * ipv6: ip6_dst_check needs to check for expired dst_entries
    - LP: #1257037
  * ipv6: reset dst.expires value when clearing expire flag
    - LP: #1257037
  * xen-netback: Handle backend state transitions in a more robust way
    - LP: #1257037
  * xen-netback: transition to CLOSED when removing a VIF
    - LP: #1257037
  * Thermal: x86_pkg_temp: change spin lock
    - LP: #1257037
  * hyperv-fb: add pci stub
    - LP: #1257037
  * USB: add new zte 3g-dongle's pid to option.c
    - LP: #1257037
  * ALSA: hda - hdmi: Fix reported channel map on common default layouts
    - LP: #1257037
  * tracing: Fix potential out-of-bounds in trace_get_user()
    - LP: #1257037
  * drm/i915/dp: workaround BIOS eDP bpp clamping issue
    - LP: #1257037
  * perf: Fix perf ring buffer memory ordering
    - LP: #1257037
  * iwlwifi: pcie: add new SKUs for 7000 & 3160 NIC series
    - LP: #1257037
  * misc: atmel_pwm: add deferred-probing support
    - LP: #1257037
  * backlight: atmel-pwm-bl: fix deferred probe from __init
    - LP: #1257037
  * usb: fix cleanup after failure in hub_configure()
    - LP: #1257037
  * usb: fail on usb_hub_create_port_device() errors
    - LP: #1257037
  * usbcore: set lpm_capable field for LPM capable root hubs
    - LP: #1257037
  * media: sh_vou: almost forever loop in sh_vou_try_fmt_vid_out()
    - LP: #1257037
  * Linux 3.11.9
    - LP: #1257037
  * ACPICA: DeRefOf operator: Update to fully resolve FieldUnit and
    BufferField refs.
    - LP: #1257037
  * libertas: potential oops in debugfs
    - LP: #1257037
  * aacraid: prevent invalid pointer dereference
    - LP: #1257037
  * ACPICA: Return error if DerefOf resolves to a null package element.
    - LP: #1257037
  * ACPICA: Fix for a Store->ArgX when ArgX contains a reference to a
    field.
    - LP: #1257037
  * USB: mos7840: fix tiocmget error handling
    - LP: #1257037
  * can: kvaser_usb: fix usb endpoints detection
    - LP: #1257037
  * Btrfs: relocate csums properly with prealloc extents
    - LP: #1257037
  * crypto: ansi_cprng - Fix off by one error in non-block size request
    - LP: #1257037
  * crypto: s390 - Fix aes-cbc IV corruption
    - LP: #1257037
  * can: c_can: Fix RX message handling, handle lost message before EOB
    - LP: #1257037
  * alx: Reset phy speed after resume
    - LP: #1257037
  * ipc,shm: correct error return value in shmctl (SHM_UNLOCK)
    - LP: #1257037
  * ipc,shm: fix shm_file deletion races
    - LP: #1257037
  * drm/nvc0-/gr: fix a number of missing explicit array terminators...
    - LP: #1257037
  * thinkpad_acpi: Fix build error when CONFIG_SND_MAX_CARDS > 32
    - LP: #1257037
  * SUNRPC: don't map EKEYEXPIRED to EACCES in call_refreshresult
    - LP: #1257037
  * sched, idle: Fix the idle polling state logic
    - LP: #1257037
  * PCI: Allow PCIe Capability link-related register access for switches
    - LP: #1257037
  * PCI: Remove PCIe Capability version checks
    - LP: #1257037
  * PCI: Support PCIe Capability Slot registers only for ports with slots
    - LP: #1257037
  * perf/ftrace: Fix paranoid level for enabling function tracer
    - LP: #1257037
  * ACPI / EC: Ensure lock is acquired before accessing ec struct members
    - LP: #1257037
  * ACPI / video: Quirk initial backlight level 0
    - LP: #1257037
  * ACPI / hotplug: Fix handle_root_bridge_removal()
    - LP: #1257037
  * ACPI / hotplug: Do not execute "insert in progress" _OST
    - LP: #1257037
  * Staging: zram: Fix access of NULL pointer
    - LP: #1257037
  * staging: comedi: avoid memleak for subdevice private
    - LP: #1257037
  * Drivers: hv: vmbus: Fix a bug in channel rescind code
    - LP: #1257037
  * rt2x00: fix a crash bug in the HT descriptor handling fix
    - LP: #1257037
  * rt2x00: check if device is still available on rt2x00mac_flush()
    - LP: #1257037
  * rt2x00: rt2800lib: fix VGC adjustment for RT5592
    - LP: #1257037
  * rt2x00: fix HT TX descriptor settings regression
    - LP: #1257037
  * Bluetooth: revert: "Bluetooth: Add missing reset_resume dev_pm_ops"
    - LP: #1257037
  * exec/ptrace: fix get_dumpable() incorrect tests
    - LP: #1257037
    - CVE-2013-2929
  * Linux 3.11.10
    - LP: #1257037
 -- Brad Figg <brad.figg@xxxxxxxxxxxxx>   Mon, 09 Dec 2013 09:41:31 -0800

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

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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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