Black screen after booting

[Paolo]

When I switch on my desktop, I see the booting information on the screen, then the screen turns black. I can hear the opening sound of Ubuntu, but the screen remains black. Only if I switch off my screen and then switch it on again, I can see the login screen of Ubuntu, then everything works fine. This is not a major problem, but somehow annoying. My screen is a Samsung LCD TV set Series A 3-4-5-6-7. It used to work fine with Ubuntu 12.04. I have experienced this problem after upgrading to 14.04.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8
ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6
Uname: Linux 3.13.0-35-generic i686
.tmp.unity.support.test.0:

ApportVersion: 2.14.1-0ubuntu3.4
Architecture: i386
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Tue Sep 16 20:52:19 2014
DistUpgraded: 2014-08-20 11:57:07,417 DEBUG enabling apt cron job
DistroCodename: trusty
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] RV610 [Radeon HD 2400 PRO] [1002:94c3] (prog-if 00 [VGA controller])
   Subsystem: Micro-Star International Co., Ltd. [MSI] Device [1462:1041]
InstallationDate: Installed on 2014-04-03 (165 days ago)
InstallationMedia: Ubuntu 12.04.4 LTS "Precise Pangolin" - Release i386 (20140204)
MachineType: HP-Pavilion KA869AA-ABZ a6335.it
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-35-generic root=UUID=1f697905-8f52-4f35-9b5c-5b8a0a3c1dba ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to trusty on 2014-08-20 (27 days ago)
dmi.bios.date: 10/29/2007
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 5.13
dmi.board.name: NARRA2
dmi.board.vendor: ASUSTek Computer INC.
dmi.board.version: 2.00
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr5.13:bd10/29/2007:svnHP-Pavilion:pnKA869AA-ABZa6335.it:pvr:rvnASUSTekComputerINC.:rnNARRA2:rvr2.00:cvnHewlett-Packard:ct3:cvrChassisVersion:
dmi.product.name: KA869AA-ABZ a6335.it
dmi.sys.vendor: HP-Pavilion
version.compiz: compiz 1:0.9.11.2+14.04.20140714-0ubuntu1
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.1
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.1
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 2:2.99.910-0ubuntu1.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Tue Sep 16 20:37:02 2014
xserver.configfile: default
xserver.devices:
 input Power Button KEYBOARD, id 6
 input Power Button KEYBOARD, id 7
 input MLK Trust Keyboard 14909 KEYBOARD, id 8
 input MLK Trust Keyboard 14909 KEYBOARD, id 9
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.15.1-0ubuntu2.1
xserver.video_driver: radeon

[penalvch (penalvch)]

Paolo, 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 as it will automatically gather and attach updated debug information to this report:

apport-collect -p xorg 1370208

Please ensure you have xdiagnose installed, and that you click the Yes button for attaching additional debugging information.

As well, given the information from the prior release is already available, testing a release prior to the development one would not be helpful.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

[Launchpad Janitor (janitor)]

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