Am 05.10.2012 18:44, schrieb Octavio Alvarez: > On 10/05/2012 07:56 AM, Alan Stern wrote: >> On Mon, 9 Jul 2012, Octavio Alvarez wrote: >> >>>> What happens if you unplug only the keyboard, or only the mouse? >>> >>> The only thing I can confirm for now is that with both disconnected >>> the system consistently suspends and that I have seen the system NOT >>> suspend with either one connected. >>> >>> Having said that, I have also seen the system suspend, but I don't >>> quite trust these tests. I think I may have failed to make sure >>> the settings were appropriate for the test (wrong kernel or wakeup >>> disabled). >> >> Did anything ever happen with this? >> > > Well, there was the workaround: > > echo disabled > /sys/devices/pci0000:00/0000:00:0b.0/power/wakeup > > ... which I applied on startup at /etc/rc.local and has worked > beautifully for me since. > > Further testing started to get us nowhere. As far as conclusions > regarding hardware, we got to "the PC is doing something fishy or is > weirdly wired up". I also concluded that it wasn't actually a > "regression" because on 3.1, enabling "0:0:0b.0/power/wakeup" also > made the system autoresume. It's just that the policy changed and > that's how my system got broken, but the policy can be tweaked on > /etc/rc.local. > > I went on vacation and forgot after that. > > However, I also started to distrust my pen drive, as it has been > randomly acting up other Linux systems. This causes it to unmount by > itself, throw journal errors, etc. Not sure if the pen drive is > damaged, or the kernel has problem, as my iPhone does similar things > sometimes and that's not damaged. In any case, conclusions drawn from > the pen drive might be incorrect now and we might have to retest. > > So, theories: > > a. My MCP51 is damaged. > b. The MCP51 designer or manufacturer's brain is damaged. > c. The kernel programming is wrong for MCP51. I just want to let you know that I'm having exactly the same problem with the Nvidia MCP61. The first linux kernel I tried with this hardware was ~2.6.16 and it already din't work there... I don't know much about the powermanagement stuff, but I can certainly test patches and provide informations about the system if needed. Regards, Frank > > And options: > > a. Somehow "blacklist" power/wakeup for this device and call it a day. > b. Continue testing the weird stuff until we squash the sucker, which > I'm more than willing to do. We can re-test from scratch if necessary > to rebuild the whole test matrix. I may need detailed instructions for > some tests. > > I would get a new pendrive just to get that out of the way. There are > some cheap Kingstons out there I can get. > > Thanks. > -- > 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 > -- 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
