Messages in this thread | | | Date | Fri, 27 Jan 2006 09:27:20 -0800 | From | Greg KH <> | Subject | Re: [linux-usb-devel] Re: 2.6.16-rc1-mm3 |
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On Sat, Jan 28, 2006 at 01:46:20AM +1300, Reuben Farrelly wrote: > > > On 26/01/2006 6:39 p.m., Greg KH wrote: > >On Wed, Jan 25, 2006 at 11:44:14PM +1300, Reuben Farrelly wrote: > >> > >>On 25/01/2006 8:24 p.m., Andrew Morton wrote: > >>>http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.16-rc1/2.6.16-rc1-mm3/ > >>> > >>>- Dropped the timekeeping patch series due to a complex timesource > >>>selection > >>> bug. > >>> > >>>- Various fixes and updates. > >>Generally quite good again :) > >> > >>I'm seeing this USB "handoff" warning message logged when booting up: > >> > >>0000:00:1d.7 EHCI: BIOS handoff failed (BIOS bug ?) > >> > >>This is not new to this -mm release, looking back over my bootlogs I note > >>that 2.6-15-rc5-mm1 was OK, but 2.6.15-mm4 was showing this message. > >>I'll narrow it down if it doesn't appear obvious what the problem is. > > > >When this happens, does your usb-ehci driver still work properly > >(meaning do usb 2.0 devices connect and go at the proper high speeds)? > > It seems like every device I can lay my hands on either only supports 1.1 > or doesn't specify what it is. I'll try find something which is known to > be 2.0. Certainly my 1.1 devices seem to work ok. > > >And if you change the USB setting in your bios, does this error message > >go away? > > If I change "USB 2.0 legacy support" from "High Speed 480Mbps" which it was > originally to "Full Speed 12MBps" then yes it does go away. Although I'm > not sure that's the best way to have it configured.
How about just disabling USB legacy support in the bios completly? Unless you have a USB keyboard that you need for a bootloader screen or BIOS configuration, that's the recommended setting (due to all of the horrible BIOS USB bugs we have seen over the years.)
If after you find a USB 2.0 device, and have any problems with it, please let us know.
thanks,
greg k-h - 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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