Hi, The bug is still present in 3.18rc6. Many thanks, Maximilien On Sat, Nov 8, 2014 at 9:35 PM, Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx> wrote: > On Sat, Nov 08, 2014 at 11:12:34AM +0100, Hans de Goede wrote: >> Hi, >> >> On 11/08/2014 09:41 AM, Dmitry Torokhov wrote: >> > On Thu, Nov 06, 2014 at 03:51:48PM +0100, Hans de Goede wrote: >> >> Hi, >> >> >> >> On 11/06/2014 03:13 PM, Maximilien Levesque wrote: >> >>> Hi, >> >>> Thanks for your time! >> >>> Below is the output of dmesg with kernel boot parameter i8042.debug=1 >> >>> All the best, >> >> >> >> Thanks, I'm afraid reading raw i8042 is not my forte though, Dmitry, can >> >> you take a look, and do you see why no ps/2 mouse (or touchpad) is seen ? >> > >> > ... >> > >> >>> [ 1.901600] input: AT Translated Set 2 keyboard as >> >>> /devices/platform/i8042/serio0/input/input4 >> >>> [ 1.901749] i8042: [3] d4 -> i8042 (command) >> >>> [ 1.901809] i8042: [3] f2 -> i8042 (parameter) >> > >> > ... >> > No ACK to GET_ID >> > >> >>> [ 2.101556] i8042: [53] d4 -> i8042 (command) >> >>> [ 2.101622] i8042: [53] ed -> i8042 (parameter) >> > >> > Trying LEDs - no response - not a keyboard, atkbd signs out >> > >> >>> [ 2.165646] usb 1-2: new low-speed USB device number 2 using xhci_hcd >> >>> [ 2.185660] usb 3-1: new high-speed USB device number 2 using ehci-pci >> >>> [ 2.205674] usb 4-1: new high-speed USB device number 2 using ehci-pci >> >>> [ 2.301725] i8042: [103] 60 -> i8042 (command) >> >>> [ 2.301796] i8042: [103] 45 -> i8042 (parameter) >> > >> > Close AUX port >> > >> >>> [ 2.301911] i8042: [103] 60 -> i8042 (command) >> >>> [ 2.302025] i8042: [103] 47 -> i8042 (parameter) >> > >> > Enables AUX port again (to clear state - needed on some boxes) >> > >> >>> [ 2.302094] i8042: [103] d4 -> i8042 (command) >> >>> [ 2.302212] i8042: [103] f2 -> i8042 (parameter) >> > >> > psmouse - GET_ID - silence. So we decide there is no mouse. >> >> Dmitry, thanks for the analysis. >> >> So if I understand things correctly, then the aux port also gets >> probed for it having a second keyboard attached ? > > Basically every "free" serio port is tried by every serio driver, so, depending > on link order and other factors psmouse driver can try both KBD and AUX port > and atkbd can do the same. > >> I did not know >> that, could it be that this confuses the touchpad? > > It should not as the first thing we try is GET_ID command which is the same for > keyboard and mouse and we did not get any response. > >> >> > Have we tried i8042.reset? >> >> No not yet. Maximilien, can you try booting with >> i8042.reset=1 on the kernel commandline ? > > OK, so it looks like it did not work. I wonder if we could try resetting the > mouse by sticking psmouse_reset before trying to isse the GETID command. > > Thanks. > > -- > Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
