Monitor preferences doesn't identify HDMI monitor correctly.

[Neil Wilson]

Binary package hint: gnome-control-center

Preferences identifies an LG32LH3000 as a Goldstar Company Ltd 52" via HDMI.

As a consequence you get a number of resolutions that don't display correctly, plus the title bar and the scroll bar are missing in 1920x1080 mode. (The TV is a 1080p device).

ProblemType: Bug
Architecture: amd64
Date: Sun Mar 28 21:33:27 2010
DistroRelease: Ubuntu 10.04
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100224.1)
Package: gnome-control-center 1:2.29.92-0ubuntu2
ProcEnviron:
 PATH=(custom, user)
 LANG=en_GB.utf8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-17.26-generic 2.6.32.10+drm33.1
SourcePackage: gnome-control-center
Uname: Linux 2.6.32-17-generic x86_64
---
Architecture: amd64
DistroRelease: Ubuntu 10.04
DkmsStatus: Error: [Errno 2] No such file or directory
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100224.1)
Lsusb:
 Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Acer Aspire 5536
Package: xserver-xorg-video-ati 1:6.12.191-1ubuntu2
PackageArchitecture: amd64
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-17-generic root=UUID=97bd7f86-677a-4093-8e28-e292a06e0ebd ro quiet splash
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_GB.utf8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-17.26-generic 2.6.32.10+drm33.1
Tags: lucid lucid
Uname: Linux 2.6.32-17-generic x86_64
UserGroups:

dmi.bios.date: 02/27/2009
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: V1.03
dmi.board.name: JV50PU
dmi.board.vendor: Acer
dmi.board.version: Rev
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrV1.03:bd02/27/2009:svnAcer:pnAspire5536:pvr0100:rvnAcer:rnJV50PU:rvrRev:cvnAcer:ct10:cvrN/A:
dmi.product.name: Aspire 5536
dmi.product.version: 0100
dmi.sys.vendor: Acer
glxinfo: Error: [Errno 2] No such file or directory
system:
 distro: Ubuntu
 codename: lucid
 architecture: x86_64
 kernel: 2.6.32-17-generic

[Sebastien Bacher (seb128)]

thank you for your bug report, is the issue with the label or with actual screen resolution and settings?

[Neil Wilson (neil-aldur)]

It doesn't identify the Name of the screen correctly, doesn't point
out whether the resolutions are interlaced or progressive and presents
some resolutions that don't appear to be supported by the screen.

On 29 March 2010 11:36, Sebastien Bacher <email address hidden> wrote:
> thank you for your bug report, is the issue with the label or with
> actual screen resolution and settings?
>
> ** Changed in: gnome-control-center (Ubuntu)
>   Importance: Undecided => Low
>
> ** Changed in: gnome-control-center (Ubuntu)
>       Status: New => Incomplete
>
> --
> Monitor preferences doesn't identify HDMI monitor correctly.
> https://bugs.launchpad.net/bugs/550486
> You received this bug notification because you are a direct subscriber
> of the bug.
>

--
Neil Wilson

[Sebastien Bacher (seb128)]

reassigning to xorg since the resolution don't come from the gnome capplet but from the xrandr interface

[Bryce Harrington (bryce)]

Please execute the following command in a terminal after reproducing the issue, and it it will automatically gather debugging information needed for this bug:

  apport-collect 550486

[Scott Armitage (scott-armitage)]

I am experiencing a similar issue that may be related, my LG246WP identifies as a Goldstar Ltd. 24" screen. This occurs when connected via DVI->VGA and DVI->HDMI. When connected via DVI->VGA, all expected resolutions display properly. When connected via DVI->HDMI, the screen is cropped and off-center (see attachments for a screenshot and a screen picture).

Architecture: amd64
Date: Mon Mar 29
DistroRelease: Ubuntu 10.04
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - daily build 2010-03-09, via USB

If you believe this is a separate bug, please let me know so that I can create a new bug report.

[Scott Armitage (scott-armitage)]

I should add my hardware specs in case that has any bearing:

Intel Core i7 860
ASUS P7P55D-E
ATI Radeon HD 4650
LG L246WP (has VGA, component, and HDMI inputs; supposed to support HDCP)

[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Neil Wilson (neil-aldur)]

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[Bryce Harrington (bryce)]

In Lucid resolution (modesetting) is done by the kernel, so this really should be filed against the kernel

[Max (maximilian-spam)]

some people here https://bugs.launchpad.net/ubuntu/+source/linux/+bug/546083 seem to have the same problem.

[Ken Seehart (ken-seehart)]

Happens to me also. This makes it impossible for me to use my external monitor.

I am assuming that this is the same bug because I get the original symptom: my LG246WP identifies as a Goldstar Ltd. 24" screen, with an incorrect list of resolutions.

I am able to use 1024x768 (and certain other 4:3 resolutions) for a minute or so, then the monitor fails with "Invalid Format" message. Other resolutions fail immediately.

Incidentally, is there a work-around for this? Presumably there should be a way to configure this manually without being dependent on correct auto-detection, but I don't know how to do this.

[madbiologist (me-again)]

Goldstar is the old name of the LG company.

[madbiologist (me-again)]

Is this still occurring in Ubuntu 10.10 "Maverick Meerkat"? If so, there are a number of HDMI fixes (EDID detection, EDID parsing, underscan calculation and others) upstream in the recently released 2.6.37 kernel. A PPA of this kernel is available at http://kernel.ubuntu.com/~kernel-ppa/mainline/

[ThomasMartitz (thomas-martitz)]

I'm experiencing the same problem, just worse.

My LG26LE5500 (26" Full HD TV) is detected as "Goldstar Company Ltd 7"", when hooking it up via HDMI. I can't get it to display anything though. The TV just displays "No signal".

[ThomasMartitz (thomas-martitz)]

I wanted to add that I'm having this on a 2.6.38 kernel.

[madbiologist (me-again)]

I forgot to mention that Goldstar is the old name of LG corporation.

For people who are connecting a TV and getting modes (resolution+refresh rate)s which are not actually supported by their TV, and/or are not getting modes which are supported by their TV, there is a patch in the just-released 3.3 kernel to add EDID support for CEA video modes. Several people have reported gaining additional, much wanted modes. A PPA of this kernel is available at http://kernel.ubuntu.com/~kernel-ppa/mainline/

[penalvch (penalvch)]

Neil Wilson, 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? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

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

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.11-rc5

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

If you are unable to test the mainline kernel, please comment as to why specifically you were unable to test it and add the following tags:
kernel-unable-to-test-upstream
kernel-unable-to-test-upstream-VERSION-NUMBER

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]