It is not a HW limitation. All devices must be plugged in BEFORE you power on the board to make the software happy.
Also. I suggest you register so I don't have to approve your spots. That means they go through immediately. Gerald On Sun, Sep 29, 2013 at 1:49 AM, <[email protected]> wrote: > The mouse works fine if I plug it in seperately. > > I bought a basic USB hub and plugged that into my beaglebone. It powered > up normally. > I plugged in the mouse as well. They both power up for a second and then > go blank. > Is this a hardware limitation? Can I ONLY use powered USB hubs? > > Thanks > > On Thursday, 26 September 2013 23:11:16 UTC+5:30, William Hermans wrote: > >> Hi Sushant Khanna, >> >> I have read about similar issues with all sorts of devices, and as far as >> I can tell the type of hub used can be a big factor in this situation. >> First, if you have not tried checking if each device works by its self on >> the USB host port ( individually ) I would do so now. >> >> So, I think in this case I would check to see if the keyboard works by >> its self with nothing else plugged into it. If it does, then yes this would >> be a bit of a quandary, as putting this specific keyboard on another hub >> may make the situation worse. All may not be lost though, there could be a >> kernel driver module for this specific keyboard, although I would not hold >> my breathe. >> >> You may want to try using a different keyboard / mouse, with a known good >> working USB hub( if you have such laying around ). Spending money on >> something and not having that work either . . . yes, I know would not be >> ideal. Said hub should also be self powered. >> >> As to whether you're needing an external power supply I am not sure, and >> Gerald would know better than I. However we all could use more information >> to help us know what exactly is happening. Such as the serial debug output >> at the time the board is powered up with the keyboard and mouse plugged >> into the USB port. Sometimes, it can not be overstated how handy a serial >> debug interface can be . . . >> >> >> On Thu, Sep 26, 2013 at 6:35 AM, Gerald Coley <[email protected]>wrote: >> >>> Not sure it will fix your issue, but the image you are using is very >>> old. I suggest that you try a more up to date image on your board. >>> >>> http://circuitco.com/support/**BeagleBoneBlack<http://circuitco.com/support/BeagleBoneBlack> >>> >>> >>> Gerald >>> >>> >>> >>> On Thu, Sep 26, 2013 at 12:56 AM, <[email protected]> wrote: >>> >>>> Hi Guys >>>> >>>> Someone asked a similar question before, but no one had an answer then. >>>> I was going to give up and buy another keyboard but when I googled a >>>> bit more, I saw that a lot of people are able to use it with their >>>> beaglebone black. >>>> >>>> I will explain the conditions and problem in details. >>>> >>>> I have a beaglebone black powered up via a USB charger (NOT via the 5V >>>> DC adapter) >>>> I have it connected to a display via a microHDMI cable. >>>> I am running Angstrom. Updated to 4.09.2013 image. (emmc boot) >>>> >>>> When I plugged in a normal wired optical mouse, it powered up and I was >>>> able to use it. >>>> I then used an Apple keyboard as described in the title and plugged the >>>> mouse to its internal hub on the sides. Nothing worked, both did not show >>>> any signs of being powered up. >>>> I of course rebooted and checked *lsusb *output. I could see the Apple >>>> device listed there. >>>> >>>> Is this a driver issue or a power supply problem? >>>> Kinda new, so help me out please. >>>> >>>> Thanks >>>> >>>> -- >>>> For more options, visit http://beagleboard.org/discuss >>>> --- >>>> You received this message because you are subscribed to the Google >>>> Groups "BeagleBoard" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to beagleboard...@**googlegroups.com. >>>> >>>> For more options, visit >>>> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out> >>>> . >>>> >>> >>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "BeagleBoard" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to beagleboard...@**googlegroups.com. >>> >>> For more options, visit >>> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out> >>> . >>> >> >> -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
