On Thu, 2017-02-02 at 00:38 +0100, Rafael J. Wysocki wrote: > + Srinivas > > On Tuesday, January 31, 2017 02:37:43 PM Bastien Nocera wrote: > > > > Hey Rafael, > > > > On Fri, 2017-01-27 at 00:07 +0100, Rafael J. Wysocki wrote: > > > > > > On Thu, Jan 26, 2017 at 4:15 PM, Bastien Nocera <hadess@xxxxxxxxx > > > t> > > > wrote: > > > > > > > > On Fri, 2017-01-20 at 16:52 +0100, Bastien Nocera wrote: > > > > > > > > > > Hey, > > > > > > > > > > TLDR: > > > > > # first bad commit: > > > > > [50ba22479c324c0d9dc8134d519dcba92d83a8a7] > > > > > Merge > > > > > back earlier ACPI PM material for v4.3. > > > > > > > > > > hid-sensor-hub devices only start sending events through the > > > > > IIO > > > > > trigger after a suspend/resume cycle. > Srinivas, does it sound like anything familiar to you? I guess this is related to https://github.com/hadess/iio-sensor-proxy/issues/82 There is some race between user space and iio. So the driver powerup never gets called back to power a hub during system boot. So the workaround was to add to systemd unit file for iio-sensor-proxy [Unit] After=multi-user.target Something changed timings in the kernel, which triggered this issue. I never got chance to root cause this. Thanks, Srinivas -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
