Usb ports not working without laptop charger is plugged
Usb ports not working without laptop charger is plugged
I have seen a strange behaviour with a Toshiba laptop. The problem is that unless user plugs charger of his notebook, usb drives or other usb devices does not work. If he connects charger, everything is fine. It is not related with battery status, I have tested it with fully charged battery also. Porteus version is v.12 x64 with LXDE.
- brokenman
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- Distribution: Porteus v4 all desktops
- Location: Brazil
Re: Usb ports not working without laptop charger is plugged
This sounds like a unique hardware problem. The motherboard has a 5 volt rail leading to the USB port and as long as the USB output is receiving the full 5 volt (+- 0.25v) and 500mA (USB2) maximum then the plugged in device should respond. My guess is that your battery is dying.
How do i become super user?
Wear your underpants on the outside and put on a cape.
Wear your underpants on the outside and put on a cape.
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- Full of knowledge
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- Joined: 17 Jun 2013, 13:17
- Distribution: Porteus 3.2.2 XFCE 32bit
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Re: Usb ports not working without laptop charger is plugged
Is this behavior only appearing with Porteus?
can you try another Live-CD-OS? --to verify--
If you will have the same behavior, then your Battery is dying
as Brokenman said.
If you have, or can get, a self-powered-usb-hub, it may help awhile.
can you try another Live-CD-OS? --to verify--
If you will have the same behavior, then your Battery is dying
as Brokenman said.
If you have, or can get, a self-powered-usb-hub, it may help awhile.
Re: Usb ports not working without laptop charger is plugged
@brokenman: This is a brand new I7 Toshiba ultrabook.
@donald: let me check other distros. Also I will check porteus v2.
@donald: let me check other distros. Also I will check porteus v2.
Re: Usb ports not working without laptop charger is plugged
I think similar problem. But it did not solved.
http://forum.porteus.org/viewtopic.php? ... ent#p14579
http://forum.porteus.org/viewtopic.php? ... ent#p14579
Re: Usb ports not working without laptop charger is plugged
Ok, I disabled laptop-mode completely from /etc/laptop-mode/lamptop-mode.conf .
Now usb drives and mouse works.
Now usb drives and mouse works.
- brokenman
- Site Admin
- Posts: 6105
- Joined: 27 Dec 2010, 03:50
- Distribution: Porteus v4 all desktops
- Location: Brazil
Re: Usb ports not working without laptop charger is plugged
That's what i get for assuming things.
Thanks for posting the outcome, it is a strange situation that could have taken a while for others to figure out.
Thanks for posting the outcome, it is a strange situation that could have taken a while for others to figure out.
How do i become super user?
Wear your underpants on the outside and put on a cape.
Wear your underpants on the outside and put on a cape.