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by RoGeorge
Thu Sep 06, 2012 7:29 pm
Forum: Beginners
Topic: Wireless keyboard not working
Replies: 34
Views: 14720

Re: Wireless keyboard not working

This is a classic symptom of power related problems. Now, I have 5.05V on USB connector, no fuses, extra ESR capacitors and wire wrap shunt from D17 +5V0 to USB +5V0. - I tried yesterday 3 different power sources, 2 SMPS max. 2A and the last one is a very reliable and very stiff 5.25V max. 3A analo...
by RoGeorge
Wed Sep 05, 2012 5:27 pm
Forum: Beginners
Topic: Wireless keyboard not working
Replies: 34
Views: 14720

Re: Wireless keyboard not working

"Wireless Desktop PADLESS 8200F" mouse + keyboard pack from A4TECH, also NOT working. Before starting the graphical interface, it works. After startx , about one in three key pressed are missing and other are repeated until any key is pressed again. The mouse have some glitches and some of the click...
by RoGeorge
Wed Sep 05, 2012 2:11 pm
Forum: Troubleshooting
Topic: USB - the Elephant in our Room
Replies: 802
Views: 274454

Re: USB - the Elephant in our Room

My A4Tech Wireless Desktop Padless 8200F (keyboard + mouse kit) works erratically. Tested with both images: 2012-08-16-wheezy-raspbian.zip 2012-08-08-wheezy-armel.zip with 3 different power supply (4.5V, 5V, 5.25V) and 2 different SD cards (2GB SD and 8GB class 6 SDHC). The results are the same: 1. ...

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