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Message #153620
[Bug 1496697] Re: HDMI output gone after completing ubuntu updates
[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1496697
Title:
HDMI output gone after completing ubuntu updates
Status in linux package in Ubuntu:
Expired
Bug description:
Hi,
I've Ubuntu 14.04 LTS installed on a Toshiba Satellite laptop (it has
an integrated Intel video card and an AMD Radeon video card). After
installation I was using an external monitor screen connected to the
laptop through the HDMI laptop's output. Everything worked fine until
the Ubuntu's Software Updater showed me some pending updates. I've
made the updates and the next time i restarted the laptop, there was
no way to detect the external screen. After googling a lot about this,
i couldn't find a solution to my problem.
This is the output of the xrandr command:
Screen 0: minimum 8 x 8, current 1366 x 768, maximum 32767 x 32767
eDP1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
1366x768 60.0*+
1360x768 59.8 60.0
1024x768 60.0
800x600 60.3 56.2
640x480 59.9
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
As you see, the HDMI output is not shown, but it was shown until the
Ubuntu update.
I think this is the same problem reported at
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1490689
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.16.0-49-generic 3.16.0-49.65~14.04.1
ProcVersionSignature: Ubuntu 3.16.0-49.65~14.04.1-generic 3.16.7-ckt15
Uname: Linux 3.16.0-49-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.13
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Sep 17 08:28:42 2015
InstallationDate: Installed on 2015-08-27 (20 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
SourcePackage: linux-lts-utopic
UpgradeStatus: No upgrade log present (probably fresh install)
---
ApportVersion: 2.14.1-0ubuntu3.13
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: anx 2201 F.... pulseaudio
/dev/snd/controlC1: anx 2201 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 14.04
HibernationDevice: RESUME=UUID=4a2a2299-ed97-40df-abd8-43b8c3b75ea9
InstallationDate: Installed on 2015-08-27 (21 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
MachineType: TOSHIBA SATELLITE S50-B
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-49-generic.efi.signed root=UUID=79cca19f-0286-4b83-8028-204a3131de95 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.16.0-49.65~14.04.1-generic 3.16.7-ckt15
RelatedPackageVersions:
linux-restricted-modules-3.16.0-49-generic N/A
linux-backports-modules-3.16.0-49-generic N/A
linux-firmware 1.127.15
Tags: trusty
Uname: Linux 3.16.0-49-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 12/02/2014
dmi.bios.vendor: INSYDE Corp.
dmi.bios.version: 2.00
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: Type2 - Board Product Name1
dmi.board.vendor: Type2 - Board Vendor Name1
dmi.board.version: Type2 - Board Version
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: OEM Chassis ManuFacturer
dmi.chassis.version: OEM Chassis Version
dmi.modalias: dmi:bvnINSYDECorp.:bvr2.00:bd12/02/2014:svnTOSHIBA:pnSATELLITES50-B:pvrPSPQEE-00M00GCE:rvnType2-BoardVendorName1:rnType2-BoardProductName1:rvrType2-BoardVersion:cvnOEMChassisManuFacturer:ct10:cvrOEMChassisVersion:
dmi.product.name: SATELLITE S50-B
dmi.product.version: PSPQEE-00M00GCE
dmi.sys.vendor: TOSHIBA
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References