On Fri, 16 Mar 2007, Dmitry Torokhov wrote: > On 3/16/07, Alan Stern <[EMAIL PROTECTED]> wrote: > > Take a look at the message below. It turned out that the USB errors went > > away when Claas removed a USB extension cable, but that doesn't explain > > the peculiar keyboard-mouse interaction -- especially since it's a PS/2 > > keyboard. Any ideas? > > > > Going on a limb here - faulty USB cable causes USB resets which throws > off legacy emulation (which is done in SMM as well as KBC controller) > which causes KCB to lose bytes. I would expect also seeing some > keypresses not being registered but losing release is much more > visible...
It's possible. But the USB drivers try to take control of the host controllers away from the SMM BIOS. How could legacy support work with both SMM and the Linux USBHID system trying to handle it? Alan Stern
