This bug still exists in 18.04 LTS (and has been present for many versions).
Verified on an Acer Travelmate 2420. Blacklisting the module solves the problem at the expense of the buttons/switch not functioning properly. This fix should be ported into the kernel. -- 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/1633702 Title: wistron_btns module possible BUG on FJ AMILO Pro V3505. Status in linux package in Ubuntu: Expired Bug description: I'm a new Ubuntu user, trying to understand why I consistently get this BUG message Oct 14 19:57:37 belia kernel: [ 729.873790] wistron_btns: BIOS signature found at c00f5b10, entry point 000FDD20 Oct 14 19:57:37 belia kernel: [ 729.873966] BUG: unable to handle kernel paging request at c00fdd20 Oct 14 19:57:37 belia kernel: [ 729.874050] IP: [<c00fdd20>] 0xc00fdd20 Oct 14 19:57:37 belia kernel: [ 729.874095] *pdpt = 0000000001c7b001 *pde = 0000000001d43063 *pte = 80000000000fd163 Oct 14 19:57:37 belia kernel: [ 729.874186] Oops: 0011 [#1] SMP ... Oct 14 19:57:37 belia kernel: [ 729.876007] Hardware name: FUJITSU SIEMENS AMILO Pro Edition V3505 /AMILO Pro Edition V3505 , BIOS R01-B0G 04/27/2007 from the wistron_btns kernel module, used on FJ AMILO Pro V3505, to enable and disable the wireless card module from the notebook function button. The same BUG arise on all the recent kernels, including the one I'm reporting about, even at installation time from the Ubuntu media, at module "load time". By the way, once the kernel report this OOps, the system doesn't power off or reboot correctly at shutdown time, it simply hangs, even when installing the system from the media, a really serious issue for new, naive users. The only way to solve the problem seems to "blacklist" the module in /etc/modprobe.d/blacklist,conf, but, unfortunately, this will "LOCK" the wireless module in its enabled or disables state and require to boot a different kernel to unlock its state. I did some investigation on the Net about this issue and I found an interesting report about this problem, that seems known at least from kernel version 3.12, http://marc.info/?l=linux-kernel&m=138463383801233&w=2 I tested the suggested patch against the linux/drivers/input/misc/wistron_btns.c gentoo 4.4.21 source, my main system, and, well, it correct the BUG, not anymore any Oops and the button seems to work correctly. You will find the patch I applied to the wistron_btns.c source as an attachment to this report: it is a really simple patch that I'm almost sure (I didn't verified it) it may be applied unchanged to the 4.4.0-43-generic Ubuntu kernel image sources. G. Vitillaro. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-43.63-generic 4.4.21 Uname: Linux 4.4.0-43-generic i686 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2.1 Architecture: i386 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: KDE Date: Sat Oct 15 12:20:12 2016 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: kubuntu ExtraDebuggingInterest: No GraphicsCard: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03) (prog-if 00 [VGA controller]) Subsystem: Fujitsu Technology Solutions Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [1734:10c1] Subsystem: Fujitsu Technology Solutions Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller [1734:10c1] InstallationDate: Installed on 2016-09-29 (15 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release i386 (20160719) MachineType: FUJITSU SIEMENS AMILO Pro Edition V3505 PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-43-generic root=UUID=201692f6-1f2c-4b27-b9b7-172d8305a2f0 ro splash quiet vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/27/2007 dmi.bios.vendor: Phoenix Technologies LTD dmi.bios.version: R01-B0G dmi.board.name: AMILO Pro Edition V3505 dmi.board.vendor: FUJITSU SIEMENS dmi.board.version: Not Applicable dmi.chassis.asset.tag: 221C8340FC5C11DAA7BA90D491D4809D dmi.chassis.type: 10 dmi.chassis.vendor: FUJITSU SIEMENS dmi.chassis.version: A2040 dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrR01-B0G:bd04/27/2007:svnFUJITSUSIEMENS:pnAMILOProEditionV3505:pvr20:rvnFUJITSUSIEMENS:rnAMILOProEditionV3505:rvrNotApplicable:cvnFUJITSUSIEMENS:ct10:cvrA2040: dmi.product.name: AMILO Pro Edition V3505 dmi.product.version: 20 dmi.sys.vendor: FUJITSU SIEMENS version.compiz: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1 version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.2 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2.2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2.2 version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-0ubuntu0.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Sat Oct 15 10:48:04 2016 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Video Bus KEYBOARD, id 7 input Sleep Button KEYBOARD, id 8 input AT Translated Set 2 keyboard KEYBOARD, id 9 input SynPS/2 Synaptics TouchPad TOUCHPAD, id 10 xserver.errors: /dev/dri/card0: failed to set DRM interface version 1.4: Permission denied /dev/dri/card0: failed to set DRM interface version 1.4: Permission denied xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 5040 vendor CPT xserver.version: 2:1.18.4-0ubuntu0.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1633702/+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
