This problem popped up on my Intel NUC today when I rebooted due to an application crash (guvcview). I have no idea how or why, as this machine has been going fine with Xubuntu 16.04 x64 since it was released.
I tried the packages which have been proposed and it does partially correct the problems. XFCE was crashing and now it doesn't anymore, my theme loads correctly and the upower segfaults are gone from dmesg. However, I still have issues with usb enumeration, and my keyboard requires an unplug/replug a few times after bootup to work. This keyboard was working fine previously on this computer. I've also swapped it with an identical unit, and it didn't make a difference dmesg log: [ 6.825025] usb 2-7: device descriptor read/64, error -110 [ 22.039070] usb 2-7: device descriptor read/64, error -110 [ 22.214971] usb 2-2.4: new low-speed USB device number 5 using xhci_hcd [ 22.310987] usb 2-2.4: New USB device found, idVendor=413c, idProduct=2110 [ 22.310991] usb 2-2.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 22.310993] usb 2-2.4: Product: Dell Wired Multimedia Keyboard [ 22.310995] usb 2-2.4: Manufacturer: Dell [ 22.311201] usb 2-2.4: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes [ 22.311207] usb 2-2.4: ep 0x82 - rounding interval to 64 microframes, ep desc says 80 microframes [ 22.318806] input: Dell Dell Wired Multimedia Keyboard as /devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2.4/2-2.4:1.0/0003:413C:2110.0002/input/input14 [ 22.371145] hid-generic 0003:413C:2110.0002: input,hidraw1: USB HID v1.10 Keyboard [Dell Dell Wired Multimedia Keyboard] on usb-0000:00:14.0-2.4/input0 [ 22.381593] input: Dell Dell Wired Multimedia Keyboard as /devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2.4/2-2.4:1.1/0003:413C:2110.0003/input/input15 [ 22.435511] hid-generic 0003:413C:2110.0003: input,hiddev0,hidraw2: USB HID v1.10 Mouse [Dell Dell Wired Multimedia Keyboard] on usb-0000:00:14.0-2.4/input1 [ 22.470969] usb 2-7: new full-speed USB device number 6 using xhci_hcd [ 27.582992] usb 2-7: device descriptor read/64, error -110 [ 43.064673] usb 2-7: device descriptor read/64, error -110 [ 43.283615] usb 2-7: new full-speed USB device number 7 using xhci_hcd [ 48.340731] xhci_hcd 0000:00:14.0: Command completion event does not match command [ 48.340737] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command [ 53.582506] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command [ 53.787133] usb 2-7: device not accepting address 7, error -62 [ 53.899485] usb 2-7: new full-speed USB device number 8 using xhci_hcd [ 58.923342] xhci_hcd 0000:00:14.0: Command completion event does not match command [ 58.923349] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command [ 64.145612] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command [ 64.349704] usb 2-7: device not accepting address 8, error -62 [ 64.349731] usb usb2-port7: unable to enumerate USB device [ 64.349765] usb 2-2: USB disconnect, device number 3 [ 64.349767] usb 2-2.4: USB disconnect, device number 5 [ 64.677970] usb 2-2: new high-speed USB device number 9 using xhci_hcd [ 64.806493] usb 2-2: New USB device found, idVendor=413c, idProduct=1010 [ 64.806497] usb 2-2: New USB device strings: Mfr=0, Product=1, SerialNumber=0 [ 64.806498] usb 2-2: Product: USB 2.0 Hub [MTT] [ 64.806863] hub 2-2:1.0: USB hub found [ 64.806886] hub 2-2:1.0: 4 ports detected [ 64.878886] show_signal_msg: 30 callbacks suppressed [ 64.878892] panel-5-power-m[1166]: segfault at 0 ip 00007f7cfbc03d16 sp 00007ffd49025188 error 4 in libc-2.23.so[7f7cfbb79000+1c0000] [ 65.078255] usb 2-2.4: new low-speed USB device number 10 using xhci_hcd [ 65.174451] usb 2-2.4: New USB device found, idVendor=413c, idProduct=2110 [ 65.174455] usb 2-2.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 65.174457] usb 2-2.4: Product: Dell Wired Multimedia Keyboard [ 65.174459] usb 2-2.4: Manufacturer: Dell [ 65.174659] usb 2-2.4: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes [ 65.174667] usb 2-2.4: ep 0x82 - rounding interval to 64 microframes, ep desc says 80 microframes [ 65.183422] input: Dell Dell Wired Multimedia Keyboard as /devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2.4/2-2.4:1.0/0003:413C:2110.0004/input/input16 [ 65.238877] hid-generic 0003:413C:2110.0004: input,hidraw1: USB HID v1.10 Keyboard [Dell Dell Wired Multimedia Keyboard] on usb-0000:00:14.0-2.4/input0 [ 65.249858] input: Dell Dell Wired Multimedia Keyboard as /devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2.4/2-2.4:1.1/0003:413C:2110.0005/input/input17 [ 65.302784] hid-generic 0003:413C:2110.0005: input,hiddev0,hidraw2: USB HID v1.10 Mouse [Dell Dell Wired Multimedia Keyboard] on usb-0000:00:14.0-2.4/input1 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to upower in Ubuntu. https://bugs.launchpad.net/bugs/1546641 Title: unity-settings-daemon crashed with SIGSEGV in up_exported_daemon_get_lid_is_closed() Status in Upower: Unknown Status in unity-settings-daemon package in Ubuntu: Triaged Status in upower package in Ubuntu: Fix Released Status in unity-settings-daemon source package in Xenial: Triaged Status in upower source package in Xenial: Fix Committed Status in unity-settings-daemon source package in Yakkety: Triaged Status in upower source package in Yakkety: Fix Released Bug description: https://errors.ubuntu.com/problem/8ca9c548fc4e2fc1d4bf827bbd85c72df59313f8 Ubuntu 16.04 crashes immediately on login. Default settings not applied and appearance is a bit ugly (incorrect font hinting, in- window menus etc). SRU TEST CASE (upower) ---------------------- On affected machines, unity-settings-daemon crashes immediately on login, as due to a kernel bug upowerd takes a very long time to start. With the fixed package the crash is fixed. Power status information will still be wrong, but at least theme, hotkeys, and all other unity-settings-daemon functionality will work. This can be synthetically tested with: DBUS_SYSTEM_BUS_ADDRESS=foo upower --dump With the current xenial version this causes a segfault, while with the fix you get a proper error message. Fix: https://cgit.freedesktop.org/upower/commit/?id=932a6a39e3 https://cgit.freedesktop.org/upower/commit/?id=4e83fabac (The second one is not crucial, but provides a much better failure mode for the "upower" CLI tool). Regression potential: This changes the core behaviour of libupower. The patch is carefully written to be backwards compatible to the extent possible, but changing the behaviour is necessary to fix this bug (see commit log for details). Thus clients such as unity-control- center, unity-settings-daemon, or mate-power-manager should be tested as part of the verification. --- ProblemType: Crash DistroRelease: Ubuntu 16.04 ProcVersionSignature: Ubuntu 4.4.0-6.21-generic 4.4.1 Uname: Linux 4.4.0-6-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 CrashCounter: 1 Date: Wed Feb 17 13:52:13 2016 ExecutablePath: /usr/lib/unity-settings-daemon/unity-settings-daemon InstallationDate: Installed on 2016-02-08 (8 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160205) ProcCmdline: /usr/lib/unity-settings-daemon/unity-settings-daemon ProcEnviron: LANGUAGE=pt_BR:pt:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=pt_BR.UTF-8 SHELL=/bin/false SegvAnalysis: Segfault happened at: 0x3aae60fe69 <up_exported_daemon_get_lid_is_closed+9>: mov (%rbx),%rdi PC (0x3aae60fe69) ok source "(%rbx)" (0x00000000) not located in a known VMA region (needed readable region)! destination "%rdi" ok SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity-settings-daemon StacktraceTop: up_exported_daemon_get_lid_is_closed () from /usr/lib/x86_64-linux-gnu/libupower-glib.so.3 gsd_power_manager_start () from /usr/lib/unity-settings-daemon-1.0/libpower.so ?? () from /usr/lib/unity-settings-daemon-1.0/libpower.so gnome_settings_plugin_info_activate () ?? () Title: unity-settings-daemon crashed with SIGSEGV in up_exported_daemon_get_lid_is_closed() UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: To manage notifications about this bug go to: https://bugs.launchpad.net/upower/+bug/1546641/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
