Nicolas K, thank you for reporting this and helping make Ubuntu better. In order to allow additional upstream developers to examine the issue, at your earliest convenience, could you please test the latest upstream kernel available from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D ? Please keep in mind the following: 1) The one to test is at the very top line at the top of the page (not the daily folder). 2) The release names are irrelevant. 3) The folder time stamps aren't indicative of when the kernel actually was released upstream. 4) Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds .
If testing on your main install would be inconvenient, one may: 1) Install Ubuntu to a different partition and then test this there. 2) Backup, or clone the primary install. If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description: kernel-fixed-upstream kernel-fixed-upstream-X.Y-rcZ Where X, and Y are the first two numbers of the kernel version, and Z is the release candidate number if it exists. If the mainline kernel does not fix the issue, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-X.Y-rcZ Please note, an error to install the kernel does not fit the criteria of kernel-bug-exists-upstream. Also, you don't need to apport-collect further unless specifically requested to do so. It is most helpful that after testing of the latest upstream kernel is complete, you mark this report Status Confirmed. Lastly, to keep this issue relevant to upstream, please continue to test the latest mainline kernel as it becomes available. Thank you for your help. ** Description changed: - (Please forgive the length of this post, I hope this may be useful to - other owners of similar computers) - - *Description* - - After switching from Lubuntu 15.10 to Lubuntu 16.04, I cannot shutdown my (Lenovo A540) computer anymore. The Lubuntu logout screen hangs indefinitely and doesn't react to any (well, at least Ctrl+Backspace, Ctrl+Alt+Fn, Ctrl+D and Ctrl+Alt+Del) keyboard key combination. + After switching from Lubuntu 15.10 to Lubuntu 16.04, I cannot shutdown my (Lenovo A540) computer anymore. The Lubuntu logout screen hangs indefinitely and doesn't react to most keyboard combinations. I thus have to press the power button for a few (~5) seconds in order to shut it down. - I didn't have this problem with Lubuntu 15.10, and don't have it with - Windows 10 (dual boot), hence I believe it is software-related. - - *Context* - - Some context may shed some light about my configuration tweaks. - I experienced the following problems with my Lenovo A540: - - 0. I can't see GRUB after installing Lubuntu (true for both Lubuntu - 15.10 and 16.04) - - Doc: https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T/Unable-to-select-UEFI-Legacy-Boot-in-BIOS-Startup-ThinkPad-T540p/td-p/1670487 - Fix: disable secure boot and then toggle "CSM" depending on the OS I want to use: - * with CSM enabled, windows bootloader is "chosen" (maybe because it is on the first partition) a - * with CSM disabled, GRUB is loaded. I can select between Linux kernel 4.2 or 4.4 (either in regular or recovery mode) or windows, but selecting Windows 10 will give me an error as CSM must be enabled. - - 1. After upgrading to Lubuntu 16.04 (kernel 4.4.0.35), Linux does not boot anymore. - Doc: tracked in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1463422 - Fix: add "acpi=noirq" boot parameter - Cmd: sudo sed -i s/GRUB_CMDINE_LINUX=""/GRUB_CMDINE_LINUX="acpi=noirq" /etc/default/grub && sudo update-grub - - 2. After upgrading to Lubuntu 16.04, the wifi chipset not recognized - Doc: see for instance http://askubuntu.com/questions/71159/network-manager-says-device-not-managed - Fix: use driver r8723au, not rtl8xxxu - Commands: - su - ; - echo blacklist rtl8xxxu >> /etc/modprobe.d/blacklist.conf; - rmmod rtl8xxxu; - service networking restart; - - - 3. After upgrading to Lubuntu 16.04, the names of network interfaces are not meaningful - Doc: http://askubuntu.com/questions/767786/changing-network-interfaces-name-ubuntu-16-04 - Fix: Add a couple of other boot parameters, "net.iframes=0 biosdevname=0" - Cmd: see point 1) and tweak it a bit - (so, at this point my GRUB_CMDLINE_LINUX is "acpi=noirq net.ifnames=0 biosdevname=0") - - *Note* - - This post relates to: - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1463422 - [Lenovo IdeaCentre A740] Doesn't poweroff on shutdown - - *Details* + I don't have this problem with Windows 10 (dual boot). ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-53-generic 4.4.0-53.74 ProcVersionSignature: Ubuntu 4.4.0-53.74-generic 4.4.30 Uname: Linux 4.4.0-53-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: nico 2096 F.... pulseaudio /dev/snd/controlC1: nico 2096 F.... pulseaudio CurrentDesktop: LXDE Date: Mon Dec 19 20:54:01 2016 HibernationDevice: RESUME=UUID=ef8c9700-bfb5-44a4-8d49-f82e03fd6e68 InstallationDate: Installed on 2016-02-13 (310 days ago) InstallationMedia: Lubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) MachineType: LENOVO F0AN ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-53-generic root=UUID=4d7d95e5-cfce-4e21-84fb-2dd965595f63 ro acpi=noirq net.ifnames=0 biosdevname=0 quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-53-generic N/A linux-backports-modules-4.4.0-53-generic N/A linux-firmware 1.157.6 SourcePackage: linux StagingDrivers: r8723au UpgradeStatus: Upgraded to xenial on 2016-12-17 (2 days ago) dmi.bios.date: 09/30/2014 dmi.bios.vendor: LENOVO dmi.bios.version: O00KT19AUS dmi.board.name: INVALID dmi.board.vendor: LENOVO dmi.board.version: 31900058 STD dmi.chassis.type: 13 dmi.chassis.vendor: LENOVO dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnLENOVO:bvrO00KT19AUS:bd09/30/2014:svnLENOVO:pnF0AN:pvrLenovoA540:rvnLENOVO:rnINVALID:rvr31900058STD:cvnLENOVO:ct13:cvrChassisVersion: dmi.product.name: F0AN dmi.product.version: Lenovo A540 dmi.sys.vendor: LENOVO ** Tags added: regression-release ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1651294 Title: [Lenovo IdeaCentre A540] Doesn't poweroff on shutdown Status in linux package in Ubuntu: Incomplete Bug description: After switching from Lubuntu 15.10 to Lubuntu 16.04, I cannot shutdown my (Lenovo A540) computer anymore. The Lubuntu logout screen hangs indefinitely and doesn't react to most keyboard combinations. I thus have to press the power button for a few (~5) seconds in order to shut it down. I don't have this problem with Windows 10 (dual boot). ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-53-generic 4.4.0-53.74 ProcVersionSignature: Ubuntu 4.4.0-53.74-generic 4.4.30 Uname: Linux 4.4.0-53-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: nico 2096 F.... pulseaudio /dev/snd/controlC1: nico 2096 F.... pulseaudio CurrentDesktop: LXDE Date: Mon Dec 19 20:54:01 2016 HibernationDevice: RESUME=UUID=ef8c9700-bfb5-44a4-8d49-f82e03fd6e68 InstallationDate: Installed on 2016-02-13 (310 days ago) InstallationMedia: Lubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) MachineType: LENOVO F0AN ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-53-generic root=UUID=4d7d95e5-cfce-4e21-84fb-2dd965595f63 ro acpi=noirq net.ifnames=0 biosdevname=0 quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-53-generic N/A linux-backports-modules-4.4.0-53-generic N/A linux-firmware 1.157.6 SourcePackage: linux StagingDrivers: r8723au UpgradeStatus: Upgraded to xenial on 2016-12-17 (2 days ago) dmi.bios.date: 09/30/2014 dmi.bios.vendor: LENOVO dmi.bios.version: O00KT19AUS dmi.board.name: INVALID dmi.board.vendor: LENOVO dmi.board.version: 31900058 STD dmi.chassis.type: 13 dmi.chassis.vendor: LENOVO dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnLENOVO:bvrO00KT19AUS:bd09/30/2014:svnLENOVO:pnF0AN:pvrLenovoA540:rvnLENOVO:rnINVALID:rvr31900058STD:cvnLENOVO:ct13:cvrChassisVersion: dmi.product.name: F0AN dmi.product.version: Lenovo A540 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1651294/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
