On Fri, 5 Aug 2016, Marco Walther wrote:> On 08/03/2016 05:25 AM, Stuart Gathman wrote: >> I've made some progress getting this Tripplite to work: >> http://gathman.org/2016/07/30/Standard_Schmandard/ >> >> Basically, plug it into a USB hub that actually implements USB2.0, then >> power cycle the port when it hangs. It does seem to be a hardware >> problem with the USB controller. > Finally an idea;-) I had the same problem for a couple of years but since I > use a [1st gen] appleTV as the server, I thought it might be it's USB port. > > I bought a `plugable USB2-HUB-AG7' and experimented a bit. So far, I did not > get it to turn the power to devices completely off:-( But the unbind/bind > seems affect the devices somehow. I tried it with a little Sparkfun RedBoard > (Arduino clone) and when I [re]bind, the RX/TX LEDs flash shortly, so it > seems to reinitialize it's USB-Serial chip. Maybe that's enough? > > The same TX/RX LED flashing happens with the hub-ctrl power off->on;-) > > OK, the USB hub is now installed between the aTV & USP ;-) Let's see what > happens next.I also bought a USB2-HUB-AG7, but the new black version (of the *same* model# - arrrrgggghhhh) no longer implements PPPS. Only the old silver version does. What is the point of a model# if you can't count on the functionality? -- Stuart D. Gathman <stuart at gathman.org> "Confutatis maledictis, flamis acribus addictis" - background song for a Microsoft sponsored "Where do you want to go from here?" commercial.
On 08/05/2016 01:36 PM, Stuart D. Gathman wrote:> On Fri, 5 Aug 2016, Marco Walther wrote: > >> On 08/03/2016 05:25 AM, Stuart Gathman wrote: >>> I've made some progress getting this Tripplite to work: >>> http://gathman.org/2016/07/30/Standard_Schmandard/ >>> >>> Basically, plug it into a USB hub that actually implements USB2.0, >>> then >>> power cycle the port when it hangs. It does seem to be a hardware >>> problem with the USB controller. >> Finally an idea;-) I had the same problem for a couple of years but >> since I use a [1st gen] appleTV as the server, I thought it might be >> it's USB port. >> >> I bought a `plugable USB2-HUB-AG7' and experimented a bit. So far, I >> did not get it to turn the power to devices completely off:-( But the >> unbind/bind seems affect the devices somehow. I tried it with a >> little Sparkfun RedBoard (Arduino clone) and when I [re]bind, the >> RX/TX LEDs flash shortly, so it seems to reinitialize it's USB-Serial >> chip. Maybe that's enough? >> >> The same TX/RX LED flashing happens with the hub-ctrl power off->on;-) >> >> OK, the USB hub is now installed between the aTV & USP ;-) Let's see >> what happens next. > > I also bought a USB2-HUB-AG7, but the new black version (of the *same* > model# - arrrrgggghhhh) no longer implements PPPS. Only the old silver > version does. What is the point of a model# if you can't count on the > functionality? >Mine even says v1 on the type sticker:-( but it's black as well. So I'll see how things behave once I loose the UPS connection and do a `hub-ctrl power off->on'. I'm not really interested in the power off, just in the reset;-) If that does not work, I'll probably try a Arduino-based power-switch cable. Since it now looks like it's really the UPS, I can actually think about different ways. Thanks, -- Marco
On 08/05/2016 03:03 PM, Marco Walther wrote:> On 08/05/2016 01:36 PM, Stuart D. Gathman wrote: >> On Fri, 5 Aug 2016, Marco Walther wrote: >> >>> On 08/03/2016 05:25 AM, Stuart Gathman wrote: >>>> I've made some progress getting this Tripplite to work: >>>> http://gathman.org/2016/07/30/Standard_Schmandard/ >>>> >>>> Basically, plug it into a USB hub that actually implements USB2.0, >>>> then >>>> power cycle the port when it hangs. It does seem to be a hardware >>>> problem with the USB controller. >>> Finally an idea;-) I had the same problem for a couple of years but >>> since I use a [1st gen] appleTV as the server, I thought it might be >>> it's USB port. >>> >>> I bought a `plugable USB2-HUB-AG7' and experimented a bit. So far, I >>> did not get it to turn the power to devices completely off:-( But >>> the unbind/bind seems affect the devices somehow. I tried it with a >>> little Sparkfun RedBoard (Arduino clone) and when I [re]bind, the >>> RX/TX LEDs flash shortly, so it seems to reinitialize it's >>> USB-Serial chip. Maybe that's enough? >>> >>> The same TX/RX LED flashing happens with the hub-ctrl power off->on;-) >>> >>> OK, the USB hub is now installed between the aTV & USP ;-) Let's see >>> what happens next. >> >> I also bought a USB2-HUB-AG7, but the new black version (of the *same* >> model# - arrrrgggghhhh) no longer implements PPPS. Only the old silver >> version does. What is the point of a model# if you can't count on the >> functionality? >> > Mine even says v1 on the type sticker:-( but it's black as well. So > I'll see how things behave once I loose the UPS connection and do a > `hub-ctrl power off->on'. I'm not really interested in the power off, > just in the reset;-)OK, that did not work:-( Neither the `hub-ctrl power off->on' nor the unbind->bind of the hub did reset the USB connection enough that the OS would see the UPS again:-( Stuart, did you find an USB hub which can actually switch the power? Otherwise, I'll probably go down the road of creating an Arduino-based power-switch at least as test setup. Thanks, -- Marco> > If that does not work, I'll probably try a Arduino-based power-switch > cable. Since it now looks like it's really the UPS, I can actually > think about different ways. > > Thanks, > > -- Marco > > > _______________________________________________ > Nut-upsdev mailing list > Nut-upsdev at lists.alioth.debian.org > http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/nut-upsdev