On Wed, Apr 25, 2018 at 09:22:47PM +0300, Kyprianos Papadimitriou wrote: > > Dear sir/madam, > > I am facing the following problem: > > My computer randomly stops responding to the usb mouse and keyboard. > Unplugging them and plugging them back into a different port does not fix > the problem. Sometimes it is fixed after rebooting or after suspending, then > turning it on. > > 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 009: ID 046d:c404 Logitech, Inc. TrackMan Wheel > Bus 002 Device 010: ID 0a81:0205 Chesen Electronics Corp. PS/2 > Keyboard+Mouse Adapter So this is a ps2 -> USB adapter for the keyboard, right? > Command "tlp-stat -u" 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 > > Can you please help me resolving this issue? > > 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. Why would something be overflowing? These devices should "just work" as this is an old thing. Have you tried turning autosuspend off for these devices? Lots of old USB devices do not like that at all. I don't know what "tlp" does with them, but I would suggest blacklisting them from it and see if that resolves the issue. thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
