Loss of keyboard/mouse when writing to USB stick
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System: xubuntu 16.04, automatic updates active. System is on a KVM via USB. the KVM has a power supply.
This problem appeared somewhere late Fall 2017 and it keeps annoying me. Since I did not change any SW or hardware on the system, maybe others had observed sth like that as well.
When I write large file (>60MB) onto any USB stick I can observe
- The copy operation progress bar halts at ~60MB for 10-20secs
- After that time mouse and keyboard is lost. The keyboard/mouse are working fine on all other pcs on that KVM.
- the progress bar continues. The copy operation finishes ok
When I pull the USB connection to the Xubuntu box and reconnect it right away, keyboard and mouse work fine again.
I see that behaviour on more than one machine. The effect is not sharp at an exact file size. I have seen a variation that mouse motions slowed down to up to few cm every 20secs. Again the same procedure restored it in all cases.
Since there is a workaround to get rid of the effect I can work. But since its a real hassle, I'd be happy to learn more about this.
I have checked out the logs in /var/logs/.. but could not find specifics. Since I am not good with Linux I/O system, some tips on where to look and what to look for would be appreciated.
Also it would help to see that the issue popped up elsewhere as well.
usb xubuntu keyboard mouse
asked May 26 at 14:11
CatMan
517319
add a comment |Â
up vote
0
down vote
favorite
System: xubuntu 16.04, automatic updates active. System is on a KVM via USB. the KVM has a power supply.
This problem appeared somewhere late Fall 2017 and it keeps annoying me. Since I did not change any SW or hardware on the system, maybe others had observed sth like that as well.
When I write large file (>60MB) onto any USB stick I can observe
- The copy operation progress bar halts at ~60MB for 10-20secs
- After that time mouse and keyboard is lost. The keyboard/mouse are working fine on all other pcs on that KVM.
- the progress bar continues. The copy operation finishes ok
When I pull the USB connection to the Xubuntu box and reconnect it right away, keyboard and mouse work fine again.
I see that behaviour on more than one machine. The effect is not sharp at an exact file size. I have seen a variation that mouse motions slowed down to up to few cm every 20secs. Again the same procedure restored it in all cases.
Since there is a workaround to get rid of the effect I can work. But since its a real hassle, I'd be happy to learn more about this.
I have checked out the logs in /var/logs/.. but could not find specifics. Since I am not good with Linux I/O system, some tips on where to look and what to look for would be appreciated.
Also it would help to see that the issue popped up elsewhere as well.
usb xubuntu keyboard mouse
asked May 26 at 14:11
CatMan
517319
add a comment |Â
up vote
0
down vote
favorite
up vote
0
down vote
favorite
System: xubuntu 16.04, automatic updates active. System is on a KVM via USB. the KVM has a power supply.
This problem appeared somewhere late Fall 2017 and it keeps annoying me. Since I did not change any SW or hardware on the system, maybe others had observed sth like that as well.
When I write large file (>60MB) onto any USB stick I can observe
- The copy operation progress bar halts at ~60MB for 10-20secs
- After that time mouse and keyboard is lost. The keyboard/mouse are working fine on all other pcs on that KVM.
- the progress bar continues. The copy operation finishes ok
When I pull the USB connection to the Xubuntu box and reconnect it right away, keyboard and mouse work fine again.
I see that behaviour on more than one machine. The effect is not sharp at an exact file size. I have seen a variation that mouse motions slowed down to up to few cm every 20secs. Again the same procedure restored it in all cases.
Since there is a workaround to get rid of the effect I can work. But since its a real hassle, I'd be happy to learn more about this.
I have checked out the logs in /var/logs/.. but could not find specifics. Since I am not good with Linux I/O system, some tips on where to look and what to look for would be appreciated.
Also it would help to see that the issue popped up elsewhere as well.
usb xubuntu keyboard mouse
asked May 26 at 14:11
CatMan
517319
System: xubuntu 16.04, automatic updates active. System is on a KVM via USB. the KVM has a power supply.
This problem appeared somewhere late Fall 2017 and it keeps annoying me. Since I did not change any SW or hardware on the system, maybe others had observed sth like that as well.
When I write large file (>60MB) onto any USB stick I can observe
- The copy operation progress bar halts at ~60MB for 10-20secs
- After that time mouse and keyboard is lost. The keyboard/mouse are working fine on all other pcs on that KVM.
- the progress bar continues. The copy operation finishes ok
When I pull the USB connection to the Xubuntu box and reconnect it right away, keyboard and mouse work fine again.
I see that behaviour on more than one machine. The effect is not sharp at an exact file size. I have seen a variation that mouse motions slowed down to up to few cm every 20secs. Again the same procedure restored it in all cases.
Since there is a workaround to get rid of the effect I can work. But since its a real hassle, I'd be happy to learn more about this.
I have checked out the logs in /var/logs/.. but could not find specifics. Since I am not good with Linux I/O system, some tips on where to look and what to look for would be appreciated.
Also it would help to see that the issue popped up elsewhere as well.
usb xubuntu keyboard mouse
asked May 26 at 14:11
CatMan
517319
asked May 26 at 14:11
CatMan
517319
asked May 26 at 14:11
CatMan
517319
asked May 26 at 14:11
CatMan
517319
517319
add a comment |Â
add a comment |Â
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