On Thu, 17 May 2012, Greg Kroah-Hartman wrote: > Hi Sarah and Alan, > > I've been running my usb-next branch for a while, and been seeing some > odd "stutters" with my USB keyboard and mouse that I don't see in > Linus's 3.4-rc7 kernel at the moment. > > It shows up if I use only one device or the other for a "long" time (few > minutes or so.) They seem to get "stuck" and not respond to any > keypresses or movements, until I use the other device, and then they > both wake up. > > The mouse (trackball really) is plugged into the keyboard: > > usb1 1d6b:0002 09 2.00 480MBit/s 0mA 1IFs (ehci_hcd 0000:00:1a.0) hub > 1-1 8087:0020 09 2.00 480MBit/s 0mA 1IFs (Intel Corp. Integrated Rate Matching Hub) hub > 1-1.3 045e:001c 09 1.10 12MBit/s 64mA 1IFs (Microsoft Corp. Internet Keyboard Pro) hub > 1-1.3.1 045e:001d 00 1.10 1.5MBit/s 100mA 2IFs (Microsoft Corp. Natural Keyboard Pro) > 1-1.3.2 045e:0023 00 1.10 1.5MBit/s 100mA 1IFs (Microsoft Microsoft Trackball Optical�) > 1-1.4 046d:082d ef 2.00 480MBit/s 500mA 4IFs (Logitech, Inc. F8EE46FF) > usb2 1d6b:0002 09 2.00 480MBit/s 0mA 1IFs (ehci_hcd 0000:00:1d.0) hub > 2-1 8087:0020 09 2.00 480MBit/s 0mA 1IFs (Intel Corp. Integrated Rate Matching Hub) hub > 2-1.8 07cc:0501 00 2.00 480MBit/s 500mA 1IFs (USB2.0 CardReader 1234609 ) > > Any ideas, or hints on what might be happening here? Have either of you > noticed this recently? I can try to bisect, but it might be tough, as > it's not the most repeatable thing to reproduce. I don't know what the cause might be, but you're not the first person to report this sort of behavior. See http://marc.info/?t=133552726500001&r=1&w=2 Alan Stern -- 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
