https://bugzilla.kernel.org/show_bug.cgi?id=217089 --- Comment #18 from Alan Stern (stern@xxxxxxxxxxxxxxxxxxx) --- Okay. There was a change made to the kernel some time ago which caused it to always use the old scheme first for initializing high-speed USB devices, overriding the value in the old_scheme_first parameter file. It turned out that this change caused problems for some devices, so it was reverted about three years ago. I expect Ubuntu's 5.4.0-33-generic kernel release contains that change and the -37 release contains the reversion; that would explain what you're seeing. But at least you do have a way to make the device work now. In fact, you ought to be able to leave the parameter set to Y permanently; this will work fine with most devices. And if you want to know why the Xone behaves in this strange manner, probably the only way to find out is to ask the manufacturer. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
