I noticed your examples are both fn combos. I'm seeing something like this and it seems specifically related to the fn key. Reproducible on a Macbook (3,1) and a Lenovo Yoga 13. Sequence is simple: Press key Press fn Release key Release fn The key will be 'stuck' until you press another key. It seems to only apply to keys that are part of a fn combo, so affected keys vary from one model to another; it appears that if nothing is mapped to fn+key on a given hardware, the key is not affected. For example, delete is affected on the Macbook (which has fn+delete = backspace), but not on the Yoga (which has a dedicated backspace key). Arrow keys are an exception to this rule though. Is this what you're seeing? - Clinton On 02/17/2014 07:23 AM, Daniel J Blueman wrote: > Across 5+ years of kernels, I've been seeing occasional (1-2 times per > day) key-stuck issues where eg a fn+delete combo repeats delete until > I press delete again. I've seen this happen with fn+ctrl+left, leaving > left held and likewise with right. > > This has occurred on Apple laptops, external USB keyboards and Dell > laptops, so seems like a linux USB input issue, as I haven't seen > occur on Windows or MacOS on the same hardware. > > It seems a good move for me to rebuild and run a kernel with some USB > HID instrumentation to locate this issue over time. Without apriori > knowledge of the linux USB input stack, what is a good initial > approach? > > Thanks, > Daniel -- 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
