If I plug a second monitor into my laptop while its sleeping, and then wake it up, the lock screen freezes

[nixer]

I find sometimes that if I plug in my monitor into my laptop (via an HDMI port, and and then HDMI to DVI connector) the monitor doesn't seem to be recognized by ubuntu and no image displays on it. I have gotten around this issue by having my laptop go to sleep and then plugging it in then, at which point I could wake it up and things would generally work. It seems lately though that the lock screen is just frozen upon waking up (though not always, I can't seem to notice any pattern or triggers), and therefore I usually have to restart X.

What I expect to happen is to be able to plug in my secondary monitor at any point, at the lock screen, when at the desktop, or when the laptop is closed or asleep, and then just have it recgonized and work without needing to reboot or restart the display server.

Description: Ubuntu 14.04.1 LTS
Release: 14.04

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8
Uname: Linux 3.14.1-031401-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.14.1-0ubuntu3.5
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
Date: Sat Oct 18 11:38:24 2014
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
EcryptfsInUse: Yes
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:05fa]
InstallationDate: Installed on 2014-04-28 (172 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: Dell Inc. Inspiron 7537
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.14.1-031401-generic root=UUID=815b9800-4a18-417a-b15a-1bac42f91bfe ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/18/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A10
dmi.board.name: 07PF9F
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnDellInc.:bvrA10:bd07/18/2014:svnDellInc.:pnInspiron7537:pvr:rvnDellInc.:rn07PF9F:rvrA00:cvnDellInc.:ct8:cvr0.1:
dmi.product.name: Inspiron 7537
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.11.2+14.04.20140714-0ubuntu1
version.ia32-libs: ia32-libs N/A
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: Sat Oct 18 11:25:04 2014
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 30916
 vendor BNQ
xserver.version: 2:1.15.1-0ubuntu2.1

[penalvch (penalvch)]

James Robb, thank you for reporting this and helping make Ubuntu better. As per http://www.dell.com/support/home/us/en/04/product-support/product/inspiron-15-7537/drivers an update to your computer's buggy and outdated BIOS is available (A12). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything?

If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette .

Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report.

Once the BIOS is updated, and the information above is provided, then please mark this report Status New.

Thank you for your understanding.

[nixer (nixer)]

Hello,

I have since upgraded to 14.10, so I am not sure if any tests I could do
would be of relevance anymore. Let me know though.

//-- James Robb
//-- +354.666.0887 (Iceland/Ísland)
//-- I am migrating away from my <email address hidden> address
//-- Please send new communications to me at <email address hidden>

On 2015-02-23 04:34 PM, Christopher M. Penalver wrote:
> James Robb, thank you for reporting this and helping make Ubuntu better.
> As per http://www.dell.com/support/home/us/en/04/product-
> support/product/inspiron-15-7537/drivers an update to your computer's
> buggy and outdated BIOS is available (A12). If you update to this
> following https://help.ubuntu.com/community/BIOSUpdate does it change
> anything?
>
> If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
> sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
>
> For more on BIOS updates and linux, please see
> https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette
> .
>
> Please note your current BIOS is already in the Bug Description, so
> posting this on the old BIOS would not be helpful. As well, you don't
> have to create a new bug report.
>
> Once the BIOS is updated, and the information above is provided, then
> please mark this report Status New.
>
> Thank you for your understanding.
>
> ** Tags added: bios-outdated-a12
>
> ** Changed in: xorg (Ubuntu)
> Importance: Undecided => Low
>
> ** Changed in: xorg (Ubuntu)
> Status: New => Incomplete
>

[Launchpad Janitor (janitor)]

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