Public bug reported: (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. 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* 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 ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug staging xenial ** Description changed: - (Please forgive the length, I hope this may be useful to other owners of - similar computers) + (Please forgive the length of this post, I hope this may be useful to + other owners of similar computers) *Description* - After switching from Lubuntu 14.04 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. - I thus have to press the power button for a few (~5) seconds in order to shut it down. + 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. + 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 14.04, and don't have it with + 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 - 14.04 and 16.04) + 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; + 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" + 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* 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 + 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 + 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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1651294 Title: [Lenovo IdeaCentre A540] Doesn't poweroff on shutdown To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1651294/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
