[Dell Latitude 3340] When closing the lid, the screen won't be off unless it's locked

[Po-Hsu Lin]

CID: 201312-14381 Dell Latitude 3340

With the "When the lid is closed" option set to "Do nothing".
When closing the lid, the screen won't be off but the system will be locked. If you close the lid again, the screen will be off this time.

Steps:
1. Install 14.04.1 + update (3.13.0-43), change the "When the lid is closed" option to "Do nothing".
2. Close the lid,
3. Open the lid
4. Close the lid again
5. Open the lid, unlock it, and lock it again
6. Close the lid

Expected result:
* System will be locked on step 2, and the screen will be off on step 2, 4, 6

Actual result:
* System locked on step 2, but the screen is not off until step 4. If you lock the system manually on step 5 and close the lid, the screen will be off on step 6.

Note that if the action for "When the lid is closed" option is set to "Suspend", this system would be suspended when you close it. You don't have to close it twice.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-43-generic 3.13.0-43.72
ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
Uname: Linux 3.13.0-43-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: ubuntu 1509 F.... pulseaudio
 /dev/snd/controlC0: ubuntu 1509 F.... pulseaudio
CRDA:
 country TW:
  (2402 - 2472 @ 40), (3, 27)
  (5270 - 5330 @ 40), (3, 17), DFS
  (5735 - 5815 @ 40), (3, 30)
CurrentDesktop: Unity
Date: Mon Jan 19 02:08:19 2015
HibernationDevice: RESUME=UUID=82e19285-fa50-41f3-80e1-7c406fcadecd
InstallationDate: Installed on 2015-01-09 (10 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
MachineType: Dell Inc. Latitude 3340
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-43-generic root=UUID=b43f1522-f0a6-4cb2-8358-506ba2468d5a ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-43-generic N/A
 linux-backports-modules-3.13.0-43-generic N/A
 linux-firmware 1.127.11
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/02/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A02
dmi.board.name: 4OA010
dmi.board.vendor: Dell Inc.
dmi.board.version: D01
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA02:bd05/02/2014:svnDellInc.:pnLatitude3340:pvr01:rvnDellInc.:rn4OA010:rvrD01:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude 3340
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Po-Hsu Lin (cypressyew)]

Also, I found that if the "Lock" option in "Brightness and Lock" was set to off, the screen will be off every time when the lid was closed. Maybe it's the lock event causing this issue.

[Po-Hsu Lin (cypressyew)]

As per Ara's comment, we should only consider if it would suspend when closing the lid.
For this case, it's out of scope.

Therefore I will remove the blocker tag. Thanks!

[penalvch (penalvch)]

Po-Hsu Lin, as per http://www.dell.com/support/home/us/en/04/product-support/product/latitude-3340-laptop/drivers an update to your computer's buggy and outdated BIOS is available (A05). 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

Thank you for your understanding.

[Launchpad Janitor (janitor)]

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