Hi Christopher, I will try to do my best. First of all, what about my considerations on the acpi_osi kernel boot parameter?
Secondly, I did a "binary search" of the first mainline kernel version which works. The result is not so linear. I'll explain. Version 3.11.2 (package name mentions 3.13.11-03131102.201405081435) still has the problem >From 3.14-rc1 onwards, the problem is fixed. However... with 3.14-rc1, >3.14-rc2 and 3.14-rc3 if I type: sudo rfkill list I see an output which is similar to what I get if I specify the acpi_osi boot parameter with 3.11 kernel, that is I get the hp-wifi and hp-bluetooth entries and the switch applies a hard block rather than a soft block. The only difference is that the hci0 does not disappear when the wifi card is disabled. >From 3.14-rc4 onwards, the problem is still fixed, but if I type rfkill list, >I see the output that I get with 3.15-rc2, that is without the hp-* entries. >Also, the wifi switch button produces a soft block instead of a hard block. This makes me think that there are at least two commits (one for 3.14-rc1 and one for 3.14-rc4) that in some way have effects on this. Any suggestion? -- 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: Incomplete 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