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Message #143489
[Bug 1412730] Re: DELL U2415 monitor detection issue
Michiel Janssens, could you please test the latest upstream kernel
available from the very top line at the top of the page from
http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D (the release
names are irrelevant for testing, and please do not test the daily
folder)? Install instructions are available at
https://wiki.ubuntu.com/Kernel/MainlineBuilds . This will allow
additional upstream developers to examine the issue.
If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-X.Y-rcZ
Where X, Y, and Z are numbers corresponding to the kernel version.
If the mainline kernel does not fix the issue, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ
Please note, an error to install the kernel does not fit the criteria of
kernel-bug-exists-upstream.
Once testing of the latest upstream kernel is complete, please mark this
report's Status as Confirmed. Please let us know your results.
Thank you for your understanding.
** Package changed: xorg (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Status: Triaged => Incomplete
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https://bugs.launchpad.net/bugs/1412730
Title:
DELL U2415 monitor detection issue
Status in linux package in Ubuntu:
Incomplete
Bug description:
My Laptop HP Elitebook 8740w has two external screens connected, 1
DELL U2412M connected to vga connector, and 1 DELL U2415 connected to
Displayport.
When booting up and with screens attached and active, the 2415 boots in 1024x768 resolution, the 2412 boots at the same moment in 1920x1200 as it should. At the point where the login screen appears the 2415 goes in power save mode, most of the time. After logging in, turning the 2415 off and on, sometimes helps the get the screen active (out of power save).
When it gets active, the resolution is 1024x768, not 1920x1200.
In unity-control-center in display settings the 2415 is displayed as "Unknown Display" and the maximum resolution I can select is 1024x768.
Current partial workaround:
xorg.conf with monitor section for 1920x1200 as in attachment.
This doesn't solve booting in 1024x768, but solves the resolution after logging in. unity-control-center still lists "Unknown Screen"
Tried Windows 8.1, no issues with both screens.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8
ProcVersionSignature: Ubuntu 3.13.0-44.73-generic 3.13.11-ckt12
Uname: Linux 3.13.0-44-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Tue Jan 20 10:48:24 2015
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
DkmsStatus:
vboxhost, 4.3.20, 3.13.0-40-generic, x86_64: installed
vboxhost, 4.3.20, 3.13.0-43-generic, x86_64: installed
vboxhost, 4.3.20, 3.13.0-44-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Broadway XT [Mobility Radeon HD 5870] [1002:68a0] (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company FirePro M7820 [103c:1520]
InstallationDate: Installed on 2014-05-11 (253 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: Hewlett-Packard HP EliteBook 8740w
PccardctlStatus:
Socket 0:
3.3V
16-bit
PC Card
Subdevice 0 (function 0) bound to driver "pata_pcmcia"
ProcKernelCmdLine: BOOT_IMAGE=/@trusty/boot/vmlinuz-3.13.0-44-generic root=UUID=cfafe8f3-4766-4fc7-b6f3-857eefcd2aff ro rootflags=subvol=@trusty plymouth:debug splash quiet drm.debug=0xe radeon.audio=1
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/07/2014
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68CAD Ver. F.50
dmi.board.name: 1520
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 33.31
dmi.chassis.asset.tag: CNU1152Q9W
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68CADVer.F.50:bd07/07/2014:svnHewlett-Packard:pnHPEliteBook8740w:pvr:rvnHewlett-Packard:rn1520:rvrKBCVersion33.31:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP EliteBook 8740w
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.11.3+14.04.20141104-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.56-1~ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.2
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1.3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Tue Jan 20 09:37:08 2015
xserver.configfile: /etc/X11/xorg.conf
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.15.1-0ubuntu2.6
xserver.video_driver: radeon
---
.tmp.unity.support.test.0:
ApportVersion: 2.16.1-0ubuntu2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
DistUpgraded: Fresh install
DistroCodename: vivid
DistroRelease: Ubuntu 15.04
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Broadway XT [Mobility Radeon HD 5870] [1002:68a0] (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company FirePro M7820 [103c:1520]
InstallationDate: Installed on 2014-12-29 (59 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20141224)
MachineType: Hewlett-Packard HP EliteBook 8740w
Package: xorg 1:7.7+7ubuntu2
PackageArchitecture: amd64
PccardctlStatus:
Socket 0:
3.3V
16-bit
PC Card
Subdevice 0 (function 0) bound to driver "pata_pcmcia"
PlymouthDebug: Error: [Errno 13] Permission denied: u'/var/log/plymouth-debug.log'
ProcKernelCmdLine: BOOT_IMAGE=/@vividtesting/boot/vmlinuz-3.18.0-13-generic root=UUID=cfafe8f3-4766-4fc7-b6f3-857eefcd2aff ro rootflags=subvol=@vividtesting splash quiet drm.debug=0xe plymouth:debug
ProcVersionSignature: Ubuntu 3.18.0-13.14-generic 3.18.5
Tags: vivid ubuntu reproducible compiz-0.9
Uname: Linux 3.18.0-13-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 07/07/2014
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68CAD Ver. F.50
dmi.board.name: 1520
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 33.31
dmi.chassis.asset.tag: CNU1152Q9W
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68CADVer.F.50:bd07/07/2014:svnHewlett-Packard:pnHPEliteBook8740w:pvr:rvnHewlett-Packard:rn1520:rvrKBCVersion33.31:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP EliteBook 8740w
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.12.1+15.04.20150213-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.58-2
version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.0~rc1-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.0~rc1-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.16.2.901-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
xserver.bootTime: Thu Feb 26 15:44:51 2015
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.16.2.901-1ubuntu4
xserver.video_driver: radeon
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