Thanks for your fast reply! On Wed, Jul 12, 2017 at 10:05 AM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > On Tue, Jul 11, 2017 at 08:10:06PM +0200, Johannes Becker wrote: >> Hi, >> >> I've upgraded my Distro Ubuntu from 14.04 (Kernel 3.13.0) to 16.04 >> (Kernel 4.4.0). > > Note, 4.4.0 is _very_ old for us to be dealing with here, I strongly > suggest you file this in your distro's specific bug tracker, as they are > the only ones that can support that kernel version for you. Ok, thanks for the hint. Since I wasn't sure if this behavior is regarded as bug I wanted to ask here first. But I will try to test with current versions of the kernel in the future before asking questions here. >> Since the upgrade the battery indicator LEDs on my Logitech Performance MX Mouse >> light up about every 60 seconds. Depending on the charging level 1, 2 >> or 3 LEDs light up green. > > That's great, that should be expected as it was a feature added by a new > driver, which is binding to your device. Why is this a problem? > > If you don't want this new feature enabled, you could disable the > loading of the driver to the device by blacklisting it somehow in a > modules configuration file somewhere (sorry, don't know how Ubuntu does > this...) Personally I dislike the regular flashing of the LEDs since it draws attention to something I don't care about. What I care about is when to charge the battery and the mouse makes sure I will notice that with a constant and pulsing red LED. On top of that the mouse also flashed the LEDs once when the charging level dropped from "3 to 2" and "2 to 1". Do you maybe have an idea where in the sourcecode this interval is located? I might be able to patch it for myself to disable this behavior. It would also be interesting to know if the driver has the ability to disable this behavior already so I could write a userspace program to instruct the driver to disable it? Thanks for your time and efforts again! Best regards, Johannes -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html