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[Bug 1318531] Re: [Dell Inspiron 17R 5737] Video looks 1 byte shifted

 

Ok, this is where the bisect ended, this should be the first working
commit (I can confirm that this commit works)

git bisect start
# good: [455c6fdbd219161bd09b1165f11699d6d73de11c] Linux 3.14
git bisect good 455c6fdbd219161bd09b1165f11699d6d73de11c
# bad: [c9eaa447e77efe77b7fa4c953bd62de8297fd6c5] Linux 3.15-rc1
git bisect bad c9eaa447e77efe77b7fa4c953bd62de8297fd6c5
# good: [cd6362befe4cc7bf589a5236d2a780af2d47bcc9] Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
git bisect good cd6362befe4cc7bf589a5236d2a780af2d47bcc9
# good: [d2b150d0647e055d7a71b1c33140280550b27dd6] Merge tag 'sh-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
git bisect good d2b150d0647e055d7a71b1c33140280550b27dd6
# good: [5fb6b953bb7aa86a9c8ea760934982cedc45c52b] include/linux/syscalls.h: add sys_renameat2() prototype
git bisect good 5fb6b953bb7aa86a9c8ea760934982cedc45c52b
# bad: [ffddc5fd19b219f557fd4a81168ce8784a4faced] fs/ncpfs/dir.c: fix indenting in ncp_lookup()
git bisect bad ffddc5fd19b219f557fd4a81168ce8784a4faced
# bad: [978c6050165bba52eab7ef3581d447eb215def77] Merge branch 'drm-docs' of ssh://people.freedesktop.org/~danvet/drm into drm-next
git bisect bad 978c6050165bba52eab7ef3581d447eb215def77
# good: [262de1453184f65e5ccfe45790f93d41f7339d49] drm/i915: Directly return the vma from bind_to_vm
git bisect good 262de1453184f65e5ccfe45790f93d41f7339d49
# bad: [2fae6a860ca9adb0c881f6dcd633df775c2520e9] drm/i915: Go OCD on the Makefile
git bisect bad 2fae6a860ca9adb0c881f6dcd633df775c2520e9
# good: [ee7fa12ce4683e92e3ab0c43c36af5fb5f6b1054] drm/i915: Fix VLV forcewake after reset
git bisect good ee7fa12ce4683e92e3ab0c43c36af5fb5f6b1054
# good: [9ad6ce51026204cbb2fda4c63f3544c3eb637471] drm/i915: Remove unused to_gem_object() macro
git bisect good 9ad6ce51026204cbb2fda4c63f3544c3eb637471
# bad: [319be8ae8aec7550371ac58f0fd29e9e51207b5b] drm/i915: add port power domains
git bisect bad 319be8ae8aec7550371ac58f0fd29e9e51207b5b
# bad: [70bf407c8deb5d2e26468a99f1af19a166bb89e7] drm/i915: fold in __intel_power_well_get/put functions
git bisect bad 70bf407c8deb5d2e26468a99f1af19a166bb89e7
# bad: [38aecea0ccbb909d635619cba22f1891e589b434] drm/i915: reverse dp link param selection, prefer fast over wide again
git bisect bad 38aecea0ccbb909d635619cba22f1891e589b434
# good: [5babf0fc26ae5596c2c113702568167fb7f8cf9b] drm/i915: No need to put forcewake after a reset
git bisect good 5babf0fc26ae5596c2c113702568167fb7f8cf9b
# first bad commit: [38aecea0ccbb909d635619cba22f1891e589b434] drm/i915: reverse dp link param selection, prefer fast over wide again

commit 38aecea0ccbb909d635619cba22f1891e589b434
Author: Daniel Vetter <daniel.vetter@xxxxxxxx>
Date:   Mon Mar 3 11:18:10 2014 +0100

    drm/i915: reverse dp link param selection, prefer fast over wide again
    
    ... it's this time of the year again. Originally we've frobbed this to
    fix up some regressions, but maybe our DP code improved sufficiently
    now that we can dare to do again what the spec recommends.
    
    This reverts
    
    commit 2514bc510d0c3aadcc5204056bb440fa36845147
    Author: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
    Date:   Thu Jun 21 15:13:50 2012 -0700
    
        drm/i915: prefer wide & slow to fast & narrow in DP configs
    
    I'm pretty sure I'll regret this patch, but otoh I expect we won't
    make progress here without poking the devil occasionally.
                                                                                                                                                                                                                                 
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=73694                                                                                                                                                                 
    Cc: peter@xxxxxxxxxxx                                                                                                                                                                                                        
    Cc: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>                                                                                                                                                                                  
    Tested-by: Itai BEN YAACOV <candeb@xxxxxxx>                                                                                                                                                                                  
    Tested-by: David En <d.engraf@xxxxxxxx>                                                                                                                                                                                      
    Reported-and-Tested-by: Marcus Bergner <marcusbergner@xxxxxxxxx>                                                                                                                                                             
    Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>                                                                                                                                                                             
    Acked-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>                                                                                                                                                                            
    Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>                                                                                                                                                                        
                                                                                                                                                                                                                                 
:040000 040000 bbd5be1e5beea1b22316e91c0bd2e2be091d582f 2de4a7307157aead7af502147e7abf21611f7f01 M      drivers

** Bug watch added: freedesktop.org Bugzilla #73694
   https://bugs.freedesktop.org/show_bug.cgi?id=73694

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https://bugs.launchpad.net/bugs/1318531

Title:
  [Dell Inspiron 17R 5737] Video looks 1 byte shifted

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  The video looks like it's shifted by 1byte or so. Red looks green,
  blue looks violet, green looks dark violet. (almost everything looks
  between green and violet as in the attached snapshot.

  WORKAROUND: Change GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" in /etc/default/grub to:
  GRUB_CMDLINE_LINUX_DEFAULT="nomodeset acpi_backlight=vendor"

  ---
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  kubuntu    4499 F.... pulseaudio
   /dev/snd/controlC0:  kubuntu    4499 F.... pulseaudio
  CasperVersion: 1.340
  CurrentDesktop: KDE
  DistroRelease: Ubuntu 14.04
  LiveMediaBuild: Kubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.1)
  MachineType: Dell Inc. Inspiron 5737
  Package: linux (not installed)
  ProcFB:
   0 inteldrmfb
   1 radeondrmfb
  ProcKernelCmdLine: initrd=/casper/initrd.lz file=/cdrom/preseed/username.seed boot=casper maybe-ubiquity  quiet splash -- BOOT_IMAGE=/casper/vmlinuz.efi
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-24-generic N/A
   linux-backports-modules-3.13.0-24-generic  N/A
   linux-firmware                             1.127
  RfKill:
   1: phy0: Wireless LAN
    Soft blocked: yes
    Hard blocked: yes
  StagingDrivers: rts5139
  Tags:  trusty staging
  Uname: Linux 3.13.0-24-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 11/12/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A07
  dmi.board.name: 045YHR
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: A07
  dmi.modalias: dmi:bvnDellInc.:bvrA07:bd11/12/2013:svnDellInc.:pnInspiron5737:pvrA07:rvnDellInc.:rn045YHR:rvrA00:cvnDellInc.:ct8:cvrA07:
  dmi.product.name: Inspiron 5737
  dmi.product.version: A07
  dmi.sys.vendor: Dell Inc.

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References