Messages in this thread | | | Date | Sun, 21 Dec 2003 15:43:31 -0500 | From | Raul Miller <> | Subject | problem with usb duo mouse and keyboard |
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Linux 2.6.0 (and 2.6.0-test11) appears to have a significant problem with the mouse of the logitech 700mx duo when it's plugged in using usb.
The mouse works fine* when plugged in using the ps/2 mouse connector, and the keyboard works ok even when plugged in using usb. However, when using usb:
o horizontal mouse movement is interpreted as vertical movement o vertical mouse movement is ignored o strange things happen with mouse button presses (I didn't bother working with this configuration long enough to figure out the details).
This occurs under both x and gpm, which is mild evidence that it's not a user space problem.
It might also be worth noting that some of the extra keys on the keyboard do odd mouse-like things (like move the mouse's pointer horizontally a short distance) when it's a usb keyboard. However, these keys work reasonably normally (or, in two cases**, generate entries in syslog) when it's plugged in as a ps/2 keyboard.
My guess is that the respective usb drivers haven't taken into account that both a keyboard and a mouse might appear on the same physical connection. [But I'm still coming up to speed, and haven't yet figured out how to confirm/disprove that guess.]
-- Raul Miller moth@magenta.com
* one mouse button is ignored, however it is so awkwardly placed that I doubt anyone would want to use it.
** the syslog entries from the unsupported keys:
Dec 21 15:28:07 localhost kernel: atkbd.c: Unknown key pressed (translated set 2, code 0x11d, data 0x11, on isa0060/serio0). Dec 21 15:28:07 localhost kernel: atkbd.c: Unknown key released (translated set 2, code 0x11d, data 0x91, on isa0060/serio0). Dec 21 15:28:10 localhost kernel: atkbd.c: Unknown key pressed (translated set 2, code 0x12c, data 0x14, on isa0060/serio0). Dec 21 15:28:10 localhost kernel: atkbd.c: Unknown key released (translated set 2, code 0x12c, data 0x94, on isa0060/serio0).
Perhaps it's also worth noting that most of the other extra keys send two byte sequences when pressed (as reported by showkey -s), and showkey -k seems to be reporting the extra information as extra key releases, I think I've seen something similar on other keyboards, but I don't have one of those handy to test on). If anyone cares, I can document this for them. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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