USB keyboard disconnects after a while

["Martin S. Weber" <Ephaeton%gmx.net@localhost>]

Hey,

did anybody see something like this? After a while my USB keyboard
just gets disconnected, and the mouse on its USB hub goes dead.
Plugging out and in the keyboard will make it reattach and behave
as usual. I didn't see this behaviour with 4.99.73, but do see it
now with 5.99.3. The keyboard and stuff there is as follows:

uhci1 at pci0 dev 26 function 1: vendor 0x8086 product 0x2835 (rev. 0x03)
uhci1: interrupting at ioapic0 pin 21
usb1 at uhci1: USB revision 1.0
..
uhub1 at usb1: vendor 0x8086 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
..
uhub7 at uhub1 port 1: Cypress Semiconductor Combi keyboard Hub ref design 
V1.68, class 9/0, rev 1.10/0.01, addr 2
uhub7: 3 ports with 2 removable, bus powered
...
uhidev0 at uhub7 port 1 configuration 1 interface 0
uhidev0: vendor 0x15d9 USB Mouse, rev 1.10/1.00, addr 3, iclass 3/1
ums0 at uhidev0: 3 buttons and Z dir.
wsmouse1 at ums0 mux 0
uhidev1 at uhub7 port 3 configuration 1 interface 0
uhidev1: vendor 0x060b product 0x2001, rev 1.10/0.01, addr 4, iclass 3/1
uhidev2 at uhub7 port 3 configuration 1 interface 1
uhidev2: vendor 0x060b product 0x2001, rev 1.10/0.01, addr 4, iclass 3/0
uhid0 at uhidev2 reportid 1: input=3, output=0, feature=0
uhid1 at uhidev2 reportid 2: input=1, output=0, feature=0
..

When saying "disconnected" I mean, "stops working without notice in dmesg".

Thanks,

-Martin