firefox - Ubuntu 16.10: Certain USB-Ports Disconnecting - Ask Ubuntu


using ubuntu 16.10 gnome. issue occurs when playing youtube-videos on mozilla firefox. happens randomly when closing windows.

the cpu usage not go on 30% when video played. ram usage 1.2gb/8gb swap usage @ 0gb/4gb

after disconnect of wireless mouse , usb-headset, shown in kernel-log:

oct 28 15:04:44 cubedesktop gnome-terminal-[1668]: allocating size gtkbox 0x55ae75ce47b0 without calling gtk_widget_get_preferred_width/height(). how code know size allocate? oct 28 15:05:24 cubedesktop kernel: [  109.131952] ohci-pci 0000:00:12.0: hcdonehead not written back; disabled oct 28 15:05:24 cubedesktop kernel: [  109.131960] ohci-pci 0000:00:12.0: hc died; cleaning oct 28 15:05:24 cubedesktop kernel: [  109.132025] usb 4-1: usb disconnect, device number 2 oct 28 15:05:24 cubedesktop kernel: [  109.183639] usb 4-2: usb disconnect, device number 3 oct 28 15:05:24 cubedesktop fwupd[1545]: g_object_unref: assertion 'g_is_object (object)' failed oct 28 15:05:24 cubedesktop fwupd[1545]: g_object_unref: assertion 'g_is_object (object)' failed oct 28 15:05:27 cubedesktop gnome-software[1489]: failed updates: no results show

2x usb2 ports become unusable , disconnect. other ports still work.

i able solve similar problem (in case usb sound card disconnect after working few seconds, bricking port connected) installing more up-to-date kernel:

4.9.0-040900rc3-generic

i downloaded .deb file architecture from, http://kernel.ubuntu.com/~kernel-ppa/mainline/ , installed software updater.

after rebooting, usb device normal behavior.


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