On Mon, 2 Nov 2015, Steinar H. Gunderson wrote: > On Mon, Nov 02, 2015 at 01:28:09PM -0500, Alan Stern wrote: > >> Thanks for testing. I will submit the patch in two weeks, when the > >> current merge window closes. > > Or maybe not. This may not be the best way to solve the problem, since > > you found that the two video cards worked okay with one xHCI host > > controller but not with another. Maybe what we really need to do is > > blacklist some controllers for LPM, rather than the devices. > > Note that the two controllers were running different kernels. The one that > worked had a kernel before LPM was turned on, I believe.
Oh. Can you try running a more recent kernel on that computer? Does it fail with the same "Not enough bandwidth for altsetting 4" error? Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
