[lucid] Clientron U800 thin client doesn't need a LVDS

Bug #544671 reported by Stéphane Graber on 2010-03-22
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)

Bug Description


I have some Symbio thin clients here which are based on the Clientron U800 hardware. They are desktop computers and so don't have a LVDS.
Until a few days/weeks ago, there used to be a patch making any device without a lid switch to have its LVDS disabled. For some reason, that patch got dropped and so my thin clients are now trying to start in a dual-head setup when they only have one display plugged in.

I'd propose the following patch to drivers/gpu/drm/i915/intel_lvds.c to add that device to the list of broken devices and so restore the old good behavior.

Stéphane Graber (stgraber) wrote :
tags: added: kernel-series-unknown
tags: added: patch
Stéphane Graber (stgraber) wrote :

That's affecting the current 2.6.32 in Lucid (2.6.32-17 as of today).
Patch has been proposed on dri-devel for inclusion in the mainline kernel.

summary: - Clientron U800 thin client doesn't need a LVDS
+ [lucid] Clientron U800 thin client doesn't need a LVDS
tags: added: lucid
removed: kernel-series-unknown
Stefan Bader (smb) wrote :

It still seems to be pending acceptance. I don't see it in the current upstream (Linus) tree. Has it been submitted with a note that this should go to stable, too?

On Wed, 2010-03-24 at 15:21 +0000, Stefan Bader wrote:
> It still seems to be pending acceptance. I don't see it in the current
> upstream (Linus) tree. Has it been submitted with a note that this
> should go to stable, too?

Nope, I only sent it to drm-devel, then answered a few questions from
Yakui Zhao of Intel.

Stéphane Graber
Ubuntu developer

Stefan Bader (smb) wrote :

As I had the impression this was not really considered as done, I have resubmitted the patch upstream.

Stefan Bader (smb) wrote :

Just for reference, this was the mail I sent (no response, yet)

madbiologist (me-again) wrote :

This patch has been included in kernel 2.6.34-rc5 and has also been cc'd to stable.

commit 9875557ee8247c3f7390d378c027b45c7535a224
Author: Stefan Bader
Date: Mon Mar 29 17:53:12 2010 +0200

    drm/i915: Add no_lvds entry for the Clientron U800

    BugLink: http://bugs.launchpad.net/ubuntu/bugs/544671

    This system claims to have a LVDS but has not.

    Signed-off-by: Stephane Graber
    Signed-off-by: Stefan Bader
    CC: <email address hidden>
    Signed-off-by: Eric Anholt

tags: added: kj-triage
Jeremy Foshee (jeremyfoshee) wrote :

Hi Stéphane,

This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux 544671

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

    [This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

tags: added: needs-kernel-logs
tags: added: needs-upstream-testing
Changed in linux (Ubuntu):
status: New → Incomplete
Stéphane Graber (stgraber) wrote :

Patch has been sent upstream and included, we're waiting for that commit to be in Ubuntu before closing that bug report.

Setting status to confirmed.

Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Stefan Bader (smb) wrote :

This bugfiux is part or the upstream stable update for Lucid to (see Bug #575853).

Changed in linux (Ubuntu):
importance: Undecided → Low
status: Confirmed → Fix Released
Changed in linux (Ubuntu Lucid):
importance: Undecided → Low
status: New → Fix Committed

Accepted linux into lucid-proposed, the package will build now and be available in a few hours. Please test and give feedback here. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

tags: added: verification-needed
Launchpad Janitor (janitor) wrote :
Download full text (25.2 KiB)

This bug was fixed in the package linux - 2.6.32-23.37

linux (2.6.32-23.37) lucid-proposed; urgency=low

  [ Alex Deucher ]

  * SAUCE: drm/radeon/kms/atom: fix dual-link DVI on DCE3.2/4.0
    - LP: #564559

  [ Andy Whitcroft ]

  * [Config] ports -- build in dm-mod to enable LVM boot
    - LP: #560717
  * tools -- fix perf version extraction for multi-part flavours
    - LP: #555130
  * SAUCE: ACPI: EC: Allow multibyte access to EC (v3)
    - LP: #526354
  * [Config] enforce -- ensure dm_mod is built-in for LVM
    - LP: #560717
  * update to ubuntu-debian:7e708d33054c373faf41da23b73e8b48c342d958
    - LP: #570500, #576274

  [ Chase Douglas ]

  * Revert "(pre-stable): input: ALPS - Add signature for HP Pavilion dm3
    - LP: #550625
  * Enable ftrace function profiler
    - LP: #570389
    - LP: #575940

  [ Leann Ogasawara ]

  * Revert "staging/comdi -- disable"
    - LP: #563436
  * [Config] Enable multicast routing for sparc
    - LP: #416266
  * [Config] Add ahci.ko to virtual sub-flavour
    - LP: #570542

  [ Stefan Bader ]

  * Revert "SAUCE: drm/i915: Disable FBC on 915GM and 945GM"
    - LP: #588832

  [ Tim Gardner ]

  * ubuntu: rtl8192se -- update to version 0015.0127.2010
    - LP: #567016
  * [Config] Add atl1c to nic-modules udeb
    - LP: #557130

  [ Upstream Kernel Changes ]

  * Revert "(pre-stable) iwlwifi: fix nfreed--"
    - LP: #575853
  * Revert "backlight: mbp_nvidia_bl - add five more MacBook variants"
    - LP: #575853
  * Revert "(pre-stable) pata_via: Add VIA VX900 support"
    - LP: #575853
  * Revert "(pre-stable) x86-32, resume: do a global tlb flush in S4
    - LP: #575853
  * Revert "x86: disable IOMMUs on kernel crash"
    - LP: #575853
  * Revert "sunrpc: fix peername failed on closed listener"
    - LP: #575853
  * Revert "sunrpc: move the close processing after do recvfrom method"
    - LP: #575853
  * Revert "(pre-stable) drm/edid: allow certain bogus edids to hit a fixup
    path rather than fail"
    - LP: #575853
  * Revert "drm/radeon/kms: don't print error on -ERESTARTSYS."
    - LP: #575853
  * Revert "ath9k: fix lockdep warning when unloading module" on stable
    - LP: #588832
  * Staging: comedi: removed "depricated" from COMEDI_CB_BLOCK
    - LP: #483343
  * fat: fix buffer overflow in vfat_create_shortname()
    - LP: #575853
  * xfs: simplify inode teardown
    - LP: #575853
  * xfs: fix mmap_sem/iolock inversion in xfs_free_eofblocks
    - LP: #575853
  * xfs: I/O completion handlers must use NOFS allocations
    - LP: #575853
  * xfs: Wrapped journal record corruption on read at recovery
    - LP: #575853
  * xfs: Fix error return for fallocate() on XFS
    - LP: #575853
  * xfs: check for not fully initialized inodes in xfs_ireclaim
    - LP: #575853
  * xfs: fix timestamp handling in xfs_setattr
    - LP: #575853
  * xfs: Don't flush stale inodes
    - LP: #575853
  * xfs: Ensure we force all busy extents in range to disk
    - LP: #575853
  * xfs: reclaim inodes under a write lock
    - LP: #575853
  * xfs: Avoid inodes in reclaim when flushing from inode cache
    - LP: #575853
  * xfs: recla...

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