Hi, On Fri, 6 Oct 2017 08:31:27 +0800 Bill Kenworthy wrote: > Hi all, I have a laptop keyboard problem - it fails to reconnect the > keyboard on opening after closing. > > MS Surface pro 4 with type keyboard. > > The keyboard connects correctly on bootup or resume from hibernate (when > open). > > Close keyboard (removes power), open keyboard and it no longer works. > Requires a reboot (or hibernate/resume) for it it to work again. > > On opening the keyboard, the kernel detects it, it shows up in lsusb. > > Oct 6 05:57:15 bunyip kernel: usb 1-7: Product: Surface Type Cover > Oct 6 05:57:15 bunyip kernel: input: Microsoft Surface Type Cover > Keyboard as > /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/0003:045E:07E8.0003/input/input29 > Oct 6 05:57:15 bunyip kernel: input: Microsoft Surface Type Cover > Consumer Control as > /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/0003:045E:07E8.0003/input/input31 > Oct 6 05:57:15 bunyip kernel: input: Microsoft Surface Type Cover > Touchpad as > /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/0003:045E:07E8.0003/input/input33 > Oct 6 05:57:15 bunyip kernel: hid-multitouch 0003:045E:07E8.0003: > input,hiddev96,hidraw0: USB HID v1.11 Keyboard [Microsoft Surface Type > Cover] on usb-0000:00:14.0-7/input0 > > It looks like it changes input when reopening but the event framework > fails to re-enumerate it. > > Ive tried restarting udev but no luck.
Try to update your kernel to the latest one, preferably to vanilla one. Also try udevadm trigger. Best regards, Andrew Savchenko
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