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by Frodo1B
Fri Feb 22, 2013 7:02 pm
Forum: Troubleshooting
Topic: Cannot get Raspberry Pi to talk to Laptop via Cat.5 Ethernet
Replies: 4
Views: 819

Re: Cannot get Raspberry Pi to talk to Laptop via Cat.5 Ethe

Do you need a crossover ethernet perhaps? If you used a hub or switch and the machines are on the same network then it should work in any case.
by Frodo1B
Thu Dec 06, 2012 1:53 am
Forum: Beginners
Topic: Using Linux in a commercial application?
Replies: 5
Views: 3968

Re: Using Linux in a commercial application?

Here is a good place to start:

http://www.gnu.org/licenses/gpl-faq.html
by Frodo1B
Mon Dec 03, 2012 8:25 pm
Forum: Troubleshooting
Topic: Pi goes dark after a few minutes
Replies: 3
Views: 1045

Re: Pi goes dark after a few minutes

I had to copy a new version of the latest version of Raspian over the one on my SDHC card from RS before I could get it to work. In fact I have four SDHC cards that will not work properly on any of my 3RPis, so try a different card and the latest version of Raspian before returning your RPi.
by Frodo1B
Mon Dec 03, 2012 6:37 pm
Forum: Troubleshooting
Topic: Raspberry Hangs
Replies: 6
Views: 1193

Re: Raspberry Hangs

I saw similar behavior when using a zd1211rw wireless device in the past. Once I changed adapters the issue went away.
by Frodo1B
Fri Nov 30, 2012 9:05 pm
Forum: Troubleshooting
Topic: After using XBMC
Replies: 1
Views: 439

Re: After using XBMC

Perhaps install Raspian on the defective card and see if that works?
by Frodo1B
Thu Nov 22, 2012 12:19 am
Forum: Troubleshooting
Topic: USB - the Elephant in our Room
Replies: 802
Views: 270790

Re: USB - the Elephant in our Room

I am strongly suspect that instances like this are due to either bad Raspberry Pi boards, or bad SDHC cards. It seems that once one finds correctly functioning SDHC cards along with a good power supply things work correctly. The problem is that I have seen batches of 3 new SDHC cards that did not fu...
by Frodo1B
Sun Nov 18, 2012 6:41 am
Forum: Troubleshooting
Topic: mmc0: Controller never released inhibit bit(s)
Replies: 26
Views: 13267

Re: mmc0: Controller never released inhibit bit(s)

This seems to be related to the performance of the various batches of SDHC cards from the vendors. My first experience with this issue was with Kingston cards, but my best performing cards are the same models from Kingston and now I have seen the same type of issue with certain Transend cards and my...
by Frodo1B
Thu Nov 15, 2012 7:28 pm
Forum: Advanced users
Topic: why idle at 700mhz ???
Replies: 15
Views: 3695

Re: why idle at 700mhz ???

See the comments by Flojer0 in this thread:

http://www.raspberrypi.org/phpBB3/viewt ... ng#p193341

Seems it might be possible. Now the can you test the wattage and report what it saves?
by Frodo1B
Thu Nov 15, 2012 7:18 pm
Forum: Troubleshooting
Topic: Rpi black screen after normal reboot - SD CARD?!?!
Replies: 6
Views: 5240

Re: Rpi black screen after normal reboot - SD CARD?!?!

Use gparted to look at the SD card from Ubuntu and see the partitions.
by Frodo1B
Thu Nov 15, 2012 7:12 pm
Forum: Troubleshooting
Topic: Not enough power from hub?
Replies: 7
Views: 1001

Re: Not enough power from hub?

Well I would first find out if the RPi boots just by adding the hub's usb connector to the RPi without the normal power connector connected to the RPi's power supply.

It should not start, if it does then your hub backfeeds power to the RPi, if not then this is not the issue. If it does then .....
by Frodo1B
Thu Nov 15, 2012 6:30 pm
Forum: Troubleshooting
Topic: Not enough power from hub?
Replies: 7
Views: 1001

Re: Not enough power from hub?

Does the RPi start with just the USB hub connected and nothing else? In other words is the hub back powering the RPi through the USB connector and perhaps due to power mismatch is there contention between supplies?
by Frodo1B
Tue Nov 13, 2012 8:49 pm
Forum: Troubleshooting
Topic: USB Hub - Just before I buy
Replies: 7
Views: 1333

Re: USB Hub - Just before I buy

Note this in the D-Link writeup fine print:

It is recommended that the total power consumption of the connected USB devices should not exceed 2.4 A, or 12 W.

So you might get 3A of startup current, but the run amperage should be 2.4A or less.
by Frodo1B
Tue Nov 13, 2012 8:45 pm
Forum: Troubleshooting
Topic: USB Hub - Just before I buy
Replies: 7
Views: 1333

Re: USB Hub - Just before I buy

The DUB-H7 power supply is 5V at 3A.

http://www.dlink.com/us/en/home-solutio ... sb-2-0-hub
by Frodo1B
Tue Nov 13, 2012 5:21 pm
Forum: Troubleshooting
Topic: USB Hub - Just before I buy
Replies: 7
Views: 1333

Re: USB Hub - Just before I buy

I cannot answer your question on that hub, but here is what I am using. I am using the following without issues: USB Hub: D-Link DUB-H7 High Speed USB 2.0 7-Port Hub Y Connector to power the RPi from the DUB-H7: StarTech.com USB2HAUBY1 1 Feet USB Y Cable for External Hard Drive - Dual USB A to Micro...
by Frodo1B
Mon Nov 12, 2012 12:26 am
Forum: Troubleshooting
Topic: mmc0: Controller never released inhibit bit(s)
Replies: 26
Views: 13267

Re: mmc0: Controller never released inhibit bit(s)

I have six Kingston 18GB class 10 cards now, and when I received the first three about two weeks ago I thought that I have finally found the perfect SDHC card for the Pi, so I ordered three more and all three of the newer ones have this same problem. Hopefully this is some sort of timing issue that ...
by Frodo1B
Sat Nov 10, 2012 11:06 pm
Forum: Troubleshooting
Topic: mmc0: Controller never released inhibit bit(s)
Replies: 26
Views: 13267

Re: mmc0: Controller never released inhibit bit(s)

Same issue with 2012-09-18-wheezy-raspbian and a 16GB Kingston class 10 card.
by Frodo1B
Tue Nov 06, 2012 7:48 pm
Forum: Troubleshooting
Topic: [Wi-Fi]TX-stall detected, reseting device
Replies: 7
Views: 2301

Re: [Wi-Fi]TX-stall detected, reseting device

I have abandoned the Airlink 101 device that uses the zd1211 chip set and am now using an new Airlink 101 adapter that uses the RTL8188CUS chip. This is now stable after over 12 hours of use.
by Frodo1B
Sat Nov 03, 2012 1:50 pm
Forum: Troubleshooting
Topic: [Wi-Fi]TX-stall detected, reseting device
Replies: 7
Views: 2301

Re: [Wi-Fi]TX-stall detected, reseting device

I can report that this exact same issue occurs when using and Airlink 101 USB Wi-Fi device using the zd1211rw as well. I am using the latest version of Raspian according to apt-get. My error message in /var/log messages is: usb 1-1.3.3: reset high-speed USB device number 8 using dwc_otg zd1211rw 1-1...

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