USB devices (trackball and PS2-to-usb keyboard) stop responding in Ubuntu Mate 16.04.4
Kyprianos Papadimitriou
kpapadim at mhl.tuc.gr
Wed Apr 25 13:22:32 UTC 2018
Hello,
The following might be a problem related to unsupported devices by the
Kernel.
I am facing the problem described in the thread:
https://ubuntuforums.org/showthread.php?t=2342985
And my problem is that I don't know how to do the : *quirk
HID_QUIRK_ALWAYS_POLL (0x00000400)*, which is mentioned in the above link.*
*
|lsusb| command for the 2 devices gives:
Bus 002 Device 009: ID 046d:c404 Logitech, Inc. TrackMan Wheel
Bus 002 Device 010: ID 0a81:0205 Chesen Electronics Corp. PS/2
Keyboard+Mouse Adapter
|tlp-stat -u| command for the 2 devices gives:
Bus 002 Device 009 ID 046d:c404 control = on, autosuspend_delay_ms =
-1000 -- Logitech, Inc. TrackMan Wheel (usbhid)
Bus 002 Device 010 ID 0a81:0205 control = on, autosuspend_delay_ms =
-1000 -- Chesen Electronics Corp. PS/2 Keyboard+Mouse Adapter (usbhid)
|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
I think the problem 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.
Best Regards,
Kyprianos
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/kernel-team/attachments/20180425/84c7c426/attachment.html>
More information about the kernel-team
mailing list