Bug 25463
| Summary: | PS/2 mouse sync problems with KVM switch - /dev/sysmouse and /dev/psm0 | ||
|---|---|---|---|
| Product: | Base System | Reporter: | brian215 <brian215> |
| Component: | i386 | Assignee: | freebsd-bugs (Nobody) <bugs> |
| Status: | Closed FIXED | ||
| Severity: | Affects Only Me | CC: | brian215 |
| Priority: | Normal | ||
| Version: | 4.2-STABLE | ||
| Hardware: | Any | ||
| OS: | Any | ||
This happens because the mouse driver desyncs with the pointing device. The fix may be found at the following URL. Regards, James Thomason http://www.pl.freebsd.org/FAQ/FAQ134.html State Changed From-To: open->feedback Did the suggested workaround listed by James Thomason work for you? No, suggested work-around did not work. I eventually did the following: - returned KVM to vendor - purchased PS2-to-USB keyboard adapter dongle - purchased USB switch - put both keyboard and mouse (now both USB) on USB hub (integrated in my monitor) which is connected to USB switch So, when I need to switch V, K+M, I hit A/B button on my two-input monitor, and hit a button on the USB switch. This works, but is significantly constrained (ie, limited to number of video inputs on monitor; limited to USB keyboards/mice). It would be nice to see the problem really resolved, but I won't lose sleep (or productivity) over it, since it no longer affects me. Brian State Changed From-To: feedback->open The originator no longer has the hardware required to test this. State Changed From-To: open->closed The last status change should have been to "closed". |
Switching systems using the KVM switch, the mouse loses sync. (Other system is a (yuch) Win98 box (IBM thinkpad). That box, after a few seconds of wonkyness, regains sync.) When switching to FreeBSD-4.2(Stable), mouse loses sync but never regains sync. Mouse movement and keyclicks result in chaotic moves/clicks not resembling input (but at a rate corresponding to mouse activity). Behaviour consistent across use of "Auto", "PS/2", "SysMouse" protocols, "/dev/sysmouse" or "/dev/psm0" devices, with/without moused (as appropriate). Other symptoms, side-effects: X programs (window manager, xterms) crash (signal 11); messages on console or vty where X was started from include: (WW) fcntl(7, F_SETOWN): Inappropriate ioctl for device psmintr (message about loss of sync, 0x0000 != 0x8000 or some such hex values) (last message repeated 491 times) Keyboard not affected. Fix: Reboot (possibly also via "init 1", CTRL-D) (Works perfectly fine until/unless use KVM switch.) Tried suggested workarounds (switch to other VTYs, via CTL-ALT-Fn; hit buttons while not moving mouse) to no avail, at great length; Tried KVM-vendors suggestion of unplug mouse, wait 5, re-plug, also no-go. __________________________________________________________________ Get your own FREE, personal Netscape Webmail account today at http://webmail.netscape.com/ How-To-Repeat: Switching via KVM switch Also repeatable by unplugging mouse from KVM switch (KVM switch is "smart", emulates mouse/keyboard when not connected )