I see, thanks Steffen for your explanation.
I did some better tests. With acpi_osi='!Windows 2012' and the default
3.11.0-12-generic kernel, when I deactivate wifi using the switch button
I get the following output:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hp-wifi: Wireless LAN
Soft blocked: no
Hard blocked: yes
2: hp-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: yes
That is: the phy0 entry is not blocked (sorry for the wrong information
i gave previously), but the hp-bluetooh entry appears as hard blocked,
while the hci0 has gone completely.
This said, I tested the following mainline kernel versions (without using
acpi_osi='!Windows 2012') as suggested by Christopher. I did these tests
directly on my Linux Mint 16 KDE installation, because installing a mainline
kernel version on the live USB stick of Ubuntu 14.04 did not work. Here are the
results:
- with 3.12-rc7-saucy (the latest one built specifically for Saucy, which Mint
16 is based on) the problem is still present (the wireless witch button does
not work)
- with 3.15-rc2-trusty (the latest one built specifically for Trusty) the
problem is fixed (the wireless switch button does work)
However, with 3.15-rc2 without the acpi_osi='!Windows 2012' boot parameter, the
output of "rfkill list" is:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
and when the wifi is disabled it is:
0: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: no
1: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
That is: the hp-wifi and hp-bluetooth entries are missing and the switch
causes a soft-block rather than a hard block. I would say the most
correct behaviour is the one I have with acpi_osi='!Windows 2012' (i.e.:
the system sees the hp-* entries and the button performs a hard block),
but I'm not an expert. After all, the final result from a user point of
view is the same (the button works and the led on it reflects the
current enabling state of the wifi card).
I still don't know what acpi_osi='!Windows 2012' is really meant to be
and whether there may be any other side effects when using it.
** Tags added: kernel-bug-exists-upstream-3.12-rc7 kernel-fixed-upstream
kernel-fixed-upstream-3.15-rc2
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1313196
Title:
[HP ProBook 450 G1 Notebook PC] Wireless switch not working
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
This system has a button to enable and disable the WLAN interface. This
button has a LED on it: it's white when the WLAN is enabled, orange when it is
not. Pressing this button, however, does not have any effect on both Ubuntu
13.10 and Mint 16 KDE (which is also based on Ubuntu 13.10). When I press this
button, the following output is produced in dmesg:
[ 1536.228861] atkbd serio0: Unknown key pressed (translated set 2, code 0xf8
on isa0060/serio0).
[ 1536.228872] atkbd serio0: Use 'setkeycodes e078 <keycode>' to make it
known.
[ 1536.308669] atkbd serio0: Unknown key released (translated set 2, code
0xf8 on isa0060/serio0).
[ 1536.308680] atkbd serio0: Use 'setkeycodes e078 <keycode>' to make it
known.
There's just a minor difference in behavior between Ubuntu and Mint:
while in Mint the led correctly turns white when the WLAN interface is
enabled (and the outcome of "rfkill block/unblock" is correctly
reflected by the button led color), in Ubuntu this led seems to always
stay orange, even if the WLAN interface is active (and connection is
correctly established). Please note that I only tried to run Ubuntu
from a USB stick (no installation at all, no update performed).
WORKAROUND: I can use rfkill block/unblock to enable/disable the WLAN
interface.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-3.11.0-12-generic 3.11.0-12.19
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic x86_64
ApportVersion: 2.12.5-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: ubuntu 2907 F.... pulseaudio
/dev/snd/controlC0: ubuntu 2907 F.... pulseaudio
CasperVersion: 1.336ubuntu1
Date: Sat Apr 26 20:39:42 2014
LiveMediaBuild: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: Hewlett-Packard HP ProBook 450 G1
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi
file=/cdrom/preseed/username.seed boot=casper quiet splash --
RelatedPackageVersions:
linux-restricted-modules-3.11.0-12-generic N/A
linux-backports-modules-3.11.0-12-generic N/A
linux-firmware 1.116
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/13/2014
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: L74 Ver. 01.08
dmi.board.name: 1942
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 89.10
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvrL74Ver.01.08:bd02/13/2014:svnHewlett-Packard:pnHPProBook450G1:pvrA3009DD10303:rvnHewlett-Packard:rn1942:rvrKBCVersion89.10:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP ProBook 450 G1
dmi.product.version: A3009DD10303
dmi.sys.vendor: Hewlett-Packard
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1313196/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
