Seems to work! I wonder why I had commented out kbdmux. Thanks!
On 4/9/10, Hans Petter Selasky <hsela...@c2i.net> wrote: > On Friday 09 April 2010 16:30:02 Rohit Grover wrote: >> Hello Dear Hackers, >> >> This is about a puzzling behaviour which has affected me for quite >> some time now and has caused far too many unwanted reboots on my >> Macbook (running FreeBSD). >> >> The problem appeared around when I transitioned from using 8.0/Release >> 8.0/STABLE; although I am not a 100% sure of that. If I were to switch >> back to 8.0/Release, things would work normally; but then many >> significant and necessary changes have gone into 8.0/STABLE and I do >> not have the option of reverting to 8.0/Release. >> >> It has to do with the software around the USB keyboard. When booting a >> derivative of 8.0/Stable, about half the time my laptop boots into a >> state where the keyboard is unresponsive; i.e. keystrokes have no >> effect; and thus this condition forces me into a wasteful reboot. This >> state is very likely to reproduce if I do a cold boot. >> I have also discovered that if I boot the laptop with MacOSX, and then >> subsequently reboot into FreeBSD, I have a high chance of getting a >> usable keyboard. >> >> I had previously suspected changes to code in the ukbd driver. But now >> I have confirmed for myself that ukbd is sane--I did this by adding >> printfs to the data-flow path, and ensured that the read_char() >> device-switch handler within ukbd is correctly able to return key >> scan-codes even when my keyboard appears to be dead. >> >> I have also noticed that in the cases where my keyboard appears to be >> unresponsive, ukbd attaches as two separate instances: ukbd0 and >> ukbd1: >> >> <verbatim> >> Apr 9 19:20:35 macbook kernel: ugen0.2: <vendor 0x05ac> at usbus0 >> Apr 9 19:20:35 macbook kernel: ukbd0: <vendor 0x05ac product 0x1000, >> class 0/0, rev 2.00/19.65, addr 2> on usbus0 >> Apr 9 19:20:35 macbook kernel: kbd0 at ukbd0 >> Apr 9 19:20:35 macbook kernel: Root mount waiting for: usbus6 >> Apr 9 19:20:35 macbook kernel: Trying to mount root from ufs:/dev/ad6p3a >> Apr 9 19:20:35 macbook kernel: ugen5.2: <Apple Computer, Inc.> at usbus5 >> Apr 9 19:20:35 macbook kernel: GEOM_PART: Partition 'ad6p3' not >> suitable for kernel dumps (wrong type?) >> Apr 9 19:20:35 macbook kernel: ugen5.3: <Apple Computer> at usbus5 >> Apr 9 19:20:35 macbook kernel: ukbd1: <Apple Internal Keyboard> on usbus5 >> Apr 9 19:20:35 macbook kernel: kbd1 at ukbd1 >> </verbatim> >> >> whereas when the keyboard boots in an OK state, I see the following >> during boot--there is only ukbd0 and no ukbd1: >> >> <verbatim> >> Apr 9 19:23:21 macbook kernel: ugen5.3: <Apple Computer> at usbus5 >> Apr 9 19:23:21 macbook kernel: ukbd0: <Apple Internal Keyboard> on usbus5 >> Apr 9 19:23:21 macbook kernel: kbd0 at ukbd0 >> </verbatim> >> >> I have attached my config file, and the dmesg dump from the good and bad >> cases. >> >> Could you please help me figure out what's going on with my keyboard? >> >> thanks, >> Rohit. > > Hi, > > Some other device tries to attach like a keyboard: > > Apr 9 19:23:21 macbook kernel: ugen0.2: <vendor 0x05ac> at usbus0 > Apr 9 19:23:21 macbook kernel: ukbd0: <vendor 0x05ac product 0x1000, class > 0/0, rev 2.00/19.65, addr 2> on usbus0 > Apr 9 19:23:21 macbook kernel: device_attach: ukbd0 attach returned 6 > Apr 9 19:23:21 macbook kernel: ukbd0: <vendor 0x05ac product 0x1000, class > 0/0, rev 2.00/19.65, addr 2> on usbus0 > Apr 9 19:23:21 macbook kernel: device_attach: ukbd0 attach returned 6 > > Because you kbdmux disabled in your kernel config, only the first keyboard > attaching will work: > > #device kbdmux # keyboard multiplexer > > Hope that helps. > > --HPS > _______________________________________________ freebsd-usb@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to "freebsd-usb-unsubscr...@freebsd.org"
