[Samsung NP700Z5C-S03CA] Power button not working using non-default kernel parameters, when booted in CSM mode; works fine in EFI mode
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Low
|
Unassigned |
Bug Description
When my Samsung NP700Z5C is booted in the CSM (BIOS compatibility) mode, pressing the power button has no effect. There is no scancode per "/lib/udev/keymap". The problem is quite annoying because if the laptop is accidentally sent to sleep or hibernate mode, there is no return back from sleep/hibernate. Pressing the power button has no effect. The laptop can be turned off by long-pressing the power button, with the collateral loss of all unsaved data.
WORKAROUND: Remove non-default kernel parameters (ex. acpi=noirq).
WORKAROUND: Boot in UEFI mode.
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: linux-image-
ProcVersionSign
Uname: Linux 3.5.0-23-generic x86_64
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
Date: Sun Feb 3 22:56:12 2013
HibernationDevice: RESUME=
InstallationDate: Installed on 2013-01-17 (17 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z3C/700Z5C
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.95
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/19/2012
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: P04ABJ
dmi.board.
dmi.board.name: NP700Z5C-S03CA
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.
dmi.modalias: dmi:bvnPhoenixT
dmi.product.name: 700Z3C/700Z5C
dmi.product.
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
summary: |
- power button not working when Samsung laptop is booted in CSM mode; - works fine in EFI mode + power button not working using non-default kernel parameters, when + Samsung laptop is booted in CSM mode; works fine in EFI mode |
Changed in linux (Ubuntu): | |
importance: | Medium → Low |
status: | Confirmed → Incomplete |
summary: |
- power button not working using non-default kernel parameters, when - Samsung laptop is booted in CSM mode; works fine in EFI mode + [Samsung NP700Z5C-S03CA] Power button not working using non-default + kernel parameters, when booted in CSM mode; works fine in EFI mode |
Changed in linux (Ubuntu): | |
status: | Incomplete → Confirmed |
This change was made by a bot.