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by liorfuks
Tue Jul 22, 2014 11:22 am
Forum: Troubleshooting
Topic: Problem with 2A mini USB charger
Replies: 19
Views: 2078

Re: Problem with 2A mini USB charger

http://elinux.org/R-Pi_Troubleshooting go up to 7 [or more but ....] Another HDMI lead may be the answer where in the world are you? I just read this in the link you gave me: "Note that various adapters, such as HDMI-to-DVI, can also cause power loss and therefore require high values of config_hdmi...
by liorfuks
Tue Jul 22, 2014 11:10 am
Forum: Troubleshooting
Topic: Problem with 2A mini USB charger
Replies: 19
Views: 2078

Re: Problem with 2A mini USB charger

http://elinux.org/R-Pi_Troubleshooting go up to 7 [or more but ....] Another HDMI lead may be the answer where in the world are you? I am from Germany, I tried 2 HDMI Cables. I also have a DVID connector. I still didn't understand how come the 1A 4.85 V works better then the 2A 5V. could my pi be d...
by liorfuks
Tue Jul 22, 2014 10:52 am
Forum: Troubleshooting
Topic: Problem with 2A mini USB charger
Replies: 19
Views: 2078

Re: Problem with 2A mini USB charger

and these are tested on TP1 TP2 ? sounds more like the HDMI lead is bad try a config_hdmi_boost=4 or bigger in the /boot/config file yes TP1, TP2. I tried a different cable but same result. the config_hdmi_boost=4 were the default configurations. i read the increasing the config_hdmi_boost could be...
by liorfuks
Tue Jul 22, 2014 10:45 am
Forum: Troubleshooting
Topic: USB hub power up my pi
Replies: 2
Views: 736

Re: USB hub power up my pi

cheep nasty hub, but if you "cut the Red Wire" from the uplink lead it will not back power, if the PSU is ok then you can power the RPI from that also thank you for your answer! the hub supply 5V, is it possible that connecting both the hub and the psu together will harm my pi? and for cutting the ...
by liorfuks
Tue Jul 22, 2014 10:38 am
Forum: Troubleshooting
Topic: Problem with 2A mini USB charger
Replies: 19
Views: 2078

Re: Problem with 2A mini USB charger

RaTTuS wrote:do you have a test meter ?
Hi, My testmeter arrived today, the 1 amper cable supply 4.85. the 2 amper 5V.
by liorfuks
Thu Jul 17, 2014 3:03 pm
Forum: Troubleshooting
Topic: USB hub power up my pi
Replies: 2
Views: 736

USB hub power up my pi

Hello, I bought a USB hub for my pi, it works perfectly with my keyboard and WIFI adaptor. I discovered that this hub powers also my pi. I mean if the I disconnect the normal power, the pi is still powered from the USB hub. also if i just connect the usb hub the pi goes on (and even you can see the ...
by liorfuks
Thu Jul 17, 2014 2:56 pm
Forum: Troubleshooting
Topic: Problem with 2A mini USB charger
Replies: 19
Views: 2078

Re: Problem with 2A mini USB charger

Stick with the PSU that works best , can you upload a video of what happens can you post your make and model of the display when I stick the 1A it works normally, only every minute or so, the screen goes black for half a second and goes back to normal. I can do all normally, go on the internet and ...
by liorfuks
Thu Jul 17, 2014 2:34 pm
Forum: Troubleshooting
Topic: Problem with 2A mini USB charger
Replies: 19
Views: 2078

Re: Problem with 2A mini USB charger

fruitoftheloom wrote:Did you try another HDMi Cable ??
no, have only this cable
by liorfuks
Thu Jul 17, 2014 11:31 am
Forum: Troubleshooting
Topic: Problem with 2A mini USB charger
Replies: 19
Views: 2078

Re: Problem with 2A mini USB charger

RaTTuS wrote:do you have a test meter ?
unfortunately not, I bought one on eBay and it is on the way...

could it be a configuration problem or do you think this is a cable problem?
by liorfuks
Thu Jul 17, 2014 11:05 am
Forum: Troubleshooting
Topic: Problem with 2A mini USB charger
Replies: 19
Views: 2078

Re: Problem with 2A mini USB charger

where you using the same USB lead to power the RPI? not all USB PSU's are what they claim to be I use 2 Different cables. one is a normal wall to micro USB cable which say 5V 2A which DOESNT work at all picture: http://www.handy-foto-pc.de/pics/akkus/rlmicro2a.jpg the second one is a Wall to USB pl...
by liorfuks
Thu Jul 17, 2014 9:56 am
Forum: Troubleshooting
Topic: Problem with 2A mini USB charger
Replies: 19
Views: 2078

Re: Problem with 2A mini USB charger

your HDMI lead may be a bit marginal try another one or see HDMI boost options and the power lead you need is USB to micro USB not mini make sure it is of decent quality - i.e. not thin and long thank you for the quick answer. Sorry I meant micro. I didn't understand your answer exactly. the qualit...
by liorfuks
Thu Jul 17, 2014 9:22 am
Forum: Troubleshooting
Topic: Problem with 2A mini USB charger
Replies: 19
Views: 2078

Problem with 2A mini USB charger

Hello, I used a 1A USB to mini USB cable and my pi worked somewhat fine, once every 1 minutes the screen will go black for half a second. so I decided to buy a normal mini-USB 2A 5V cable (searched in ebay "charger rasberry pi"). But when I connect it to the pi the screen goes black. (usually the sc...
by liorfuks
Sat Jul 12, 2014 5:06 pm
Forum: Troubleshooting
Topic: screen randomly goes black
Replies: 0
Views: 257

screen randomly goes black

Hello, I been searching a solution for my problem but nothing.. I have an LG W2343T screen with HDMI cable and micro SD HC from Samsung (16GB). I use a normal USB to mini USB cable through a normal wall to USB charger (its a normal cable connected to a wall to USB). when I turn on my pi, the screen ...

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