Public bug reported: Hi,
I am facing the problem that is similar to the one described in the thread: https://ubuntuforums.org/showthread.php?t=2342985 Laptop (Dell Latitude 6420) randomly stops responding to the usb Trackball and Keyboard. Unplugging & plugging them back into a different port does not fix the problem. Sometimes the problem is fixed after rebooting or suspending the laptopo, then turning it on; but the problem re-appears almost immediately - after 10". The problem is related to the Logitech trackman wheel & Mircosoft PS2 Keyboard, both are old. Command "lsusb" for the 2 devices gives: Bus 002 Device 005: ID 046d:c404 Logitech, Inc. TrackMan Wheel Bus 002 Device 006: ID 0a81:0205 Chesen Electronics Corp. PS/2 Keyboard+Mouse Adapter Command "tlp-stat -u" for the 2 devices gives: Bus 002 Device 005 ID 046d:c404 control = on, autosuspend_delay_ms = -1000 -- Logitech, Inc. TrackMan Wheel (usbhid) Bus 002 Device 006 ID 0a81:0205 control = on, autosuspend_delay_ms = -1000 -- Chesen Electronics Corp. PS/2 Keyboard+Mouse Adapter (usbhid) Command "uname -ra" gives: Linux dell 4.13.0-39-generic #44~16.04.1-Ubuntu SMP Thu Apr 5 16:43:10 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux This problem tends to be very frustrating. note: I think this is not related with autosuspend, but rather with buffer overflow for the specific devices due to that they are not supported in the kernel code. Regards ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: 16.04.4 autosuspend buffer freeze polling ubuntu usb -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1769403 Title: USB devices (trackball and PS2-to-usb keyboard) freeze in Ubuntu Mate 16.04.4 , and DELL latitude Status in xorg package in Ubuntu: New Bug description: Hi, I am facing the problem that is similar to the one described in the thread: https://ubuntuforums.org/showthread.php?t=2342985 Laptop (Dell Latitude 6420) randomly stops responding to the usb Trackball and Keyboard. Unplugging & plugging them back into a different port does not fix the problem. Sometimes the problem is fixed after rebooting or suspending the laptopo, then turning it on; but the problem re-appears almost immediately - after 10". The problem is related to the Logitech trackman wheel & Mircosoft PS2 Keyboard, both are old. Command "lsusb" for the 2 devices gives: Bus 002 Device 005: ID 046d:c404 Logitech, Inc. TrackMan Wheel Bus 002 Device 006: ID 0a81:0205 Chesen Electronics Corp. PS/2 Keyboard+Mouse Adapter Command "tlp-stat -u" for the 2 devices gives: Bus 002 Device 005 ID 046d:c404 control = on, autosuspend_delay_ms = -1000 -- Logitech, Inc. TrackMan Wheel (usbhid) Bus 002 Device 006 ID 0a81:0205 control = on, autosuspend_delay_ms = -1000 -- Chesen Electronics Corp. PS/2 Keyboard+Mouse Adapter (usbhid) Command "uname -ra" gives: Linux dell 4.13.0-39-generic #44~16.04.1-Ubuntu SMP Thu Apr 5 16:43:10 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux This problem tends to be very frustrating. note: I think this is not related with autosuspend, but rather with buffer overflow for the specific devices due to that they are not supported in the kernel code. Regards To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1769403/+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
