I have a similar problem with the mouse
Mouse stops working after 2 seconds of inactivity. Scrolling and buttons at the same time continue to work. I clicked the button to "wake " the mouse.
Dmesg:
[3420.390279] input: A4Tech PS / 2 + USB Mouse as / devices/pci0000: 00 /0000 : 00:14.0 / usb1/1-6/1-6: 1.0/input/input17
[3420.390658] a4tech 0003:09 DA: 0006.0002: input, hidraw0: USB HID v1.10 Mouse [A4Tech PS / 2 + USB Mouse] on usb- 0000 :00:14.0 -6 / input0
[3421.285223] systemd-logind [ 3659 ]: Removed session c22.
[3421.285614] systemd-logind [ 3659 ]: New session c23 of user gtt.
[3429.592183] xhci_hcd 0000:00:14.0: power state changed by ACPI to D3cold
[3443.311561] systemd-logind [ 3659 ]: Removed session c23.
[3443.311974] systemd-logind [ 3659 ]: New session c24 of user gtt.
[3468.579112] xhci_hcd 0000:00:14.0: power state changed by ACPI to D0
[3468.681006] xhci_hcd 0000:00:14.0: setting latency timer to 64
gtt @ mercury: ~ $ uname-a
Linux mercury 3.11- 2 -amd64 # 1 SMP Debian 3.11.10-1 (2013-12-04) x86_64 GNU / Linux
I think the problem started after I installed the packages for acpi: acpi-support laptop-mode-tools laptop-detect. And I see that similar problems only in people with laptops.
As s temporaly solution:
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Regards,
Den V. Kaftaev