Date: Thu, 20 Nov 2008 18:32:10 -0500 From: "Scott Spare" <scuppers@gmail.com> To: freebsd-usb@freebsd.org Subject: Erratic mouse with USB KVM on 7.1 PRERELEASE and X.org (no moused) Message-ID: <daaab7120811201532t38e87eaegf1c14b315b8799e2@mail.gmail.com>
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Hello, I'm seeing erratic USB mouse behavior in X.org with a KVM switch: -The mouse pointer is jumpy in X.org when moused is enabled and with /dev/sysmouse set as the input device in xorg.conf. So I disabled it... - Disabling moused and using /dev/ums0 as the input device causes mouse freeze on switch instead of the randomness; the mouse is redetected as ums0 each time the KVM is switched. But if the KVM is switched when graphical vTTY is up, the mouse pointer will freeze. -If I select any of the non-graphical virtual TTYs (i.e. ttyv0-7 using CTRL-ALT F1 to 8), then go back to the graphical vtty, (CTRL-ALT F9), the mouse pointer unfreezes. The keyboard has no trouble - I think it's using some kind of PS2 emulation through BIOS(?) But the mouse definitely freezes every time. Is this an Xorg problem?? Possibly related info from the list: usb/102096: /usr/sbin/usbd does not handle multiple devices in one event<http://lists.freebsd.org/mailman/htdig/freebsd-usb/2006-August/002470.html>; http://lists.freebsd.org/mailman/htdig/freebsd-usb/2005-July/001213.html How to reproduce: Attach a USB KVM switch, and switch machines while Xorg is running. Possibly could reproduce by disconnecting and reconnecting USB mouse on running Xorg Notes about the KVM switch: -It has 4 ports, but has only one USB connector per machine connection. In other words, it has 4 USB-A plug connectors, even though it takes care of both keyboard and mouse. I guess it acts like a hub in that respect. -The other machines connected to the KVM re-detect the kb and mouse each time the switch is switched. (e.g. WinXP does its BeeBoop - detected hardware System info: FreeBSD 7.1-PRERELEASE FreeBSD 7.1-PRERELEASE #0: Mon Nov 10 02:00:54 EST 2008 CPU: Pentium III/Pentium III Xeon/Celeron (596.00-MHz 686-class CPU) real memory = 402653184 (384 MB) avail memory = 375795712 (358 MB) pcib0: <Intel 82443BX (440 BX) host to PCI bridge> pcibus 0 on motherboard uhci0: <Intel 82371AB/EB (PIIX4) USB controller> port 0xcce0-0xccff irq 11 at device 7.2 on pci0 usb0: <Intel 82371AB/EB (PIIX4) USB controller> on uhci0 usb0: USB revision 1.0 uhub0: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb0 uhub0: 2 ports with 2 removable, self powered ums0: <Logitech USB-PS/2 Optical Mouse, class 0/0, rev 2.00/22.00, addr 4> on uhub1 ums0: 8 buttons and Z dir. ums0: at uhub1 port 4 (addr 4) disconnected ums0: detached KVM switch: IOGEAR GCS634U 4 port USB KVM Switch Maybe I need to ditch the KVM? Go back to PS2 mice? Scott
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