I can also confirm that the original udelay(2000) workaround does the trick. However, this potentially introduces huge performance and other issues with the kernel. Hence we should try to bring down the delay to something <=50.
I.e. try values in that range and see, whether this works, too. In either way, thanks for your help and please report the outcomes! There are multiple ways to compile a kernel, see for example here: https://help.ubuntu.com/community/Kernel/Compile I have used the "classical" way there: https://help.ubuntu.com/community/Kernel/Compile#Alternate%20Build%20Method:%20The%20Old-Fashioned%20Debian%20Way Apply the attached patch in the source directory with cd linux-source-2.6.31 patch -p1 < ehci_udeal_2ms.patch *before* you start the compile with either: AUTOBUILD=1 fakeroot debian/rules binary-debs or fakeroot make-kpkg --initrd --append-to-version=-some-string-here kernel-image kernel-headers (depending on which method you use, see linked reference) As for the CONCURRENCY_LEVEL, anything >= 2 should be fine. These Netbooks are horribly slow with compiling the Linux kernel anyways :-( ** Attachment added: "Additional udelay for ehci to work around controller timing issue." http://launchpadlibrarian.net/35730414/ehci_udelay_2ms.patch -- regression: uvcvideo module makes "cannot reset port" error on usb with bison webcam (5986:0203): USB and suspend fails https://bugs.launchpad.net/bugs/435352 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
