[t420s] Video is corrupt on internal display after connecting external monitor to vga port

Bug #891031 reported by Timo Aaltonen on 2011-11-16
18
This bug affects 2 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
High
Timo Aaltonen
Natty
High
Timo Aaltonen
Oneiric
High
Timo Aaltonen
Precise
High
Timo Aaltonen

Bug Description

The laptop panel shows static after connecting an external monitor to the vga port. Upstream commit cb0e093162d7b6589c2217a00e2abfef686b32d6 from 3.1 fixes that. Tested on both 2.6.38 and 3.0.0.

SRU justification:

Impact: When plugging in an external display, an incorrect value used for some internal calculation, causes the display to get corrupted.

Fix: A small patch cherry-picked from upstream corrects the value used. Change has been discussed with the upstream maintainer and should make it into upstream 3.0.y.

Testcase: Plug in an external display on affected hardware and verify the screen.

(blocks hwe bug 865724)

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 891031

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status: New → Incomplete
Timo Aaltonen (tjaalton) on 2011-11-16
tags: added: blocks-hwcert-enablement
Timo Aaltonen (tjaalton) on 2011-11-16
Changed in linux (Ubuntu):
importance: Undecided → High
status: Incomplete → Triaged
assignee: nobody → Timo Aaltonen (tjaalton)
milestone: none → natty-updates
Timo Aaltonen (tjaalton) on 2011-11-16
description: updated
Stefan Bader (smb) on 2011-11-17
description: updated
Tim Gardner (timg-tpi) on 2011-11-17
Changed in linux (Ubuntu Natty):
status: New → Fix Committed
Tim Gardner (timg-tpi) on 2011-11-17
Changed in linux (Ubuntu Oneiric):
status: New → Fix Committed
Chris Van Hoof (vanhoof) on 2011-11-17
Changed in linux (Ubuntu Natty):
importance: Undecided → High
Changed in linux (Ubuntu Oneiric):
importance: Undecided → High
Changed in linux (Ubuntu Precise):
status: Triaged → Fix Released
Changed in linux (Ubuntu Oneiric):
assignee: nobody → Timo Aaltonen (tjaalton)
Changed in linux (Ubuntu Natty):
assignee: nobody → Timo Aaltonen (tjaalton)
Changed in linux (Ubuntu Precise):
milestone: natty-updates → none
Changed in linux (Ubuntu Oneiric):
milestone: none → oneiric-updates
Changed in linux (Ubuntu Natty):
milestone: none → natty-updates
Herton R. Krzesinski (herton) wrote :

This bug is awaiting verification that the kernel for Oneiric in -proposed solves the problem (3.0.0-14.23). Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-oneiric' to 'verification-done-oneiric'.

If verification is not done by one week from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-oneiric
Timo Aaltonen (tjaalton) wrote :

Verified that 3.0.0-14.23 works.

Chris Van Hoof (vanhoof) on 2011-11-29
tags: added: verification-done-oneiric
removed: verification-needed-oneiric
Herton R. Krzesinski (herton) wrote :

This bug is awaiting verification that the kernel for Natty in -proposed solves the problem (2.6.38-13.53). Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-natty' to 'verification-done-natty'.

If verification is not done by one week from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-natty
Timo Aaltonen (tjaalton) wrote :

Tested the natty-proposed kernel, works fine.

tags: added: verification-done-natty
removed: verification-needed-natty
Launchpad Janitor (janitor) wrote :
Download full text (24.8 KiB)

This bug was fixed in the package linux - 3.0.0-14.23

---------------
linux (3.0.0-14.23) oneiric-proposed; urgency=low

  [Herton R. Krzesinski]

  * Release Tracking Bug
    - LP: #893213

  [ Andy Whitcroft ]

  * debian: add locking to protect debian/files from parallel update

  [ Konrad Rzeszutek Wilk ]

  * SAUCE: x86/paravirt: Partially revert "remove lazy mode in interrupts"
    - LP: #854050

  [ Leann Ogasawara ]

  * Revert "ubuntu: fsam7400 disable driver"
    - LP: #876030

  [ Seth Forshee ]

  * [Config] Enable EVENT_POWER_TRACING_DEPRECATED=y for powertop

  [ Tim Gardner ]

  * Add postinit and postrm scripts to the extras package
    - LP: #882120
  * [Config] CONFIG_R6040=m
    - LP: #650899
  * [Config] CONFIG_MEMSTICK_R592=m
    - LP: #238208
  * [Config] CONFIG_HID_ACRUX_FF=y
    - LP: #890952

  [ Upstream Kernel Changes ]

  * Revert "NFS: Ensure that writeback_single_inode() calls write_inode()
    when syncing"
    - LP: #890952
  * sparc64: Force the execute bit in OpenFirmware's translation entries.
    - LP: #881420
  * sched/rt: Migrate equal priority tasks to available CPUs
    - LP: #881420
  * sched: Fix up wchan borkage
    - LP: #881420
  * ide-disk: Fix request requeuing
    - LP: #881420
  * posix-cpu-timers: Cure SMP wobbles
    - LP: #881420
  * lis3: fix regression of HP DriveGuard with 8bit chip
    - LP: #881420
  * ASoC: use a valid device for dev_err() in Zylonite
    - LP: #881420
  * ASoC: Fix setting update bits for WM8753_LADC and WM8753_RADC
    - LP: #881420
  * drm/radeon: Update AVIVO cursor coordinate origin before x/yorigin
    calculation.
    - LP: #881420
  * drm/radeon/kms: fix regression in DP aux defer handling
    - LP: #881420
  * drm/radeon/kms: add retry limits for native DP aux defer
    - LP: #881420
  * drm/radeon/kms: fix channel_remap setup (v2)
    - LP: #881420
  * ptp: fix L2 event message recognition
    - LP: #881420
  * x86/PCI: use host bridge _CRS info on ASUS M2V-MX SE
    - LP: #881420
  * qla2xxx: Fix crash in qla2x00_abort_all_cmds() on unload
    - LP: #881420
  * libsas: fix panic when single phy is disabled on a wide port
    - LP: #881420
  * md: Avoid waking up a thread after it has been freed.
    - LP: #881420
  * dm table: avoid crash if integrity profile changes
    - LP: #881420
  * mmc: mxs-mmc: fix clock rate setting
    - LP: #881420
  * exec: do not call request_module() twice from search_binary_handler()
    - LP: #881420
  * ARM: mach-ux500: enable fix for ARM errata 754322
    - LP: #881420
  * drm/radeon/kms: retry aux transactions if there are status flags
    - LP: #881420
  * drm/radeon/kms: use hardcoded dig encoder to transmitter mapping for
    DCE4.1
    - LP: #881420
  * ipv6: fix NULL dereference in udp6_ufo_fragment()
    - LP: #881420
  * ahci: Enable SB600 64bit DMA on Asus M3A
    - LP: #881420
  * MIPS: PM: Use struct syscore_ops instead of sysdevs for PM (v2)
    - LP: #881420
  * ftrace: Fix regression of :mod:module function enabling
    - LP: #881420
  * ftrace: Fix regression where ftrace breaks when modules are loaded
    - LP: #881420
  * ftrace: Fix warning when CONFIG_FUNCTION_TRACER is not defined
    - LP: #881420
  * ...

Changed in linux (Ubuntu Oneiric):
status: Fix Committed → Fix Released
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package linux - 2.6.38-13.53

---------------
linux (2.6.38-13.53) natty-proposed; urgency=low

  [Brad Figg]

  * Release Tracking Bug
    - LP: #897320

  [ Upstream Kernel Changes ]

  * cifs, freezer: add wait_event_freezekillable and have cifs use it
    - LP: #24330
  * Fixup trivial checkpatch warning
    - LP: #24330
  * Fix build break when freezer not configured
    - LP: #24330
  * PM / Freezer: Reimplement wait_event_freezekillable using
    freezer_do_not_count/freezer_count
    - LP: #24330
  * crypto: ghash - Avoid null pointer dereference if no key is set
    - LP: #887299
    - CVE-2011-4081
  * ata_piix: make DVD Drive recognisable on systems with Intel Sandybridge
    chipsets(v2)
    - LP: #737388, #782389, #794642
  * drm/i915: fix CB tuning check for ILK+
    - LP: #891031
  * xfs: Fix possible memory corruption in xfs_readlink, CVE-2011-4077
    - LP: #887298
    - CVE-2011-4077
  * jbd/jbd2: validate sb->s_first in journal_get_superblock()
    - LP: #893148
    - CVE-2011-4132
  * hfs: add sanity check for file name length, CVE-2011-4330
    - LP: #894374
    - CVE-2011-4330
 -- Brad Figg <email address hidden> Mon, 28 Nov 2011 09:48:40 -0800

Changed in linux (Ubuntu Natty):
status: Fix Committed → Fix Released
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