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darkphoenix16
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PostPosted: Thu Mar 21, 2013 5:37 pm    Post subject: USB Keyboard not working Reply with quote

Hey. I've got a USB keyboard that does not work when connected to a very basic HUB. The mouse connected to the HUB works. The keyboard when connected directly to the PC works. The USB keyboard to HUB to PC connection works fine in Fedora, Debian, Ubuntu, Win7. and Win8 ... but not Gentoo. Very confusing to me.


Any ideas?
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DanneStrat
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PostPosted: Thu Mar 21, 2013 5:48 pm    Post subject: Reply with quote

Hi,

Have you enabled "CONFIG_USB_EHCI_TT_NEWSCHED" in your kernel .config?

The help text:

"This changes the periodic scheduling code to fill more of the low and full speed bandwidth available from the Transaction Translator (TT) in USB 2.0 hubs. Without this, only one transfer will be issued in each microframe, significantly reducing the number of periodic low/fullspeed transfers possible.

If you have multiple periodic low/fullspeed devices connected to a highspeed USB hub which is connected to a highspeed USB Host Controller, and some of those devices will not work correctly (possibly due to "ENOSPC" or "-28" errors), say Y. Conversely, if you have only one such device and it doesn't work, you could try saying N.

If unsure, say Y."
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darkphoenix16
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PostPosted: Fri Mar 22, 2013 12:21 am    Post subject: Reply with quote

Thankyou. I did not have this set.
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DanneStrat
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PostPosted: Fri Mar 22, 2013 1:45 am    Post subject: Reply with quote

darkphoenix16 wrote:
Thankyou. I did not have this set.

You're welcome. :)

Let me know if it works after the kernel rebuild. If not, there's more things you can check.
It's a good thing it works under other distros, because then you know you're missing
something in Gentoo (either in kernel- or userspace, most likely the former in this case).
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darkphoenix16
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PostPosted: Sun Mar 24, 2013 4:30 pm    Post subject: Reply with quote

Works. Thanks! Wouldn't have guessed that you would need a USB module for a HUB, but I guess it makes sense.
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