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by marsman2020
Wed Jun 13, 2012 9:13 pm
Forum: Raspbian
Topic: raspbian kernel
Replies: 55
Views: 16888

Re: raspbian kernel

If you have not seen this topic yet there are some interesting kernel patches being evaluated which result in at least a doubling of the SD card read speed. See http://www.raspberrypi.org/phpBB3/viewtopic.php?p=98578#p98578 Looks very promising and hopefully it will eventually speed up all our rpi ...
by marsman2020
Wed Jun 13, 2012 7:01 pm
Forum: Troubleshooting
Topic: Debian Squeeze Network Issues
Replies: 47
Views: 9794

Re: Debian Squeeze Network Issues

I see lots of threads on this forum right now with the OPs problems not actually being solved, so I don't know if there really is a good troubleshooting process at this point. Especially related to these weird USB issues. Even the gentleman coordinating the Raspbian armhf build for the Pi is still h...
by marsman2020
Tue Jun 12, 2012 5:20 pm
Forum: Raspbian
Topic: Raspbian on "external" USB hard drive
Replies: 53
Views: 21795

Re: Raspbian on "external" USB hard drive

I finally got time to try out a new powered hub. This hub is supposedly one that is on the "approved" hardware list according to the RPi wiki: http://www.amazon.com/gp/product/B000SAB34O Unfortunately, it seems this Belkin hub still uses the Gensys chip set (idVendor=05e3 and idProduct=0608, or are...
by marsman2020
Tue Jun 12, 2012 4:05 pm
Forum: Troubleshooting
Topic: Logitech Mice + Debian?
Replies: 3
Views: 1475

Re: Logitech Mice + Debian?

Using my Logitech mouse kills Ethernet in LXDE whenever it's attached to a hub.... I've seen several other reports of issues with Logitech devices as well.

Can you ssh into the Pi and check the dmesg and lsusb output after you've started LXDE.
by marsman2020
Tue Jun 12, 2012 4:00 pm
Forum: Raspbian
Topic: raspbian kernel
Replies: 55
Views: 16888

Re: raspbian kernel

It looks like bootc is moving right along with new kernels - http://www.bootc.net/projects/raspberry-pi-kernel/ A (probably silly, because git hurts my brain) question - by pulling in bootc's changes, are you also getting all the changes from the official raspberrypi/linux branch as well at the same...
by marsman2020
Mon Jun 11, 2012 4:13 pm
Forum: Troubleshooting
Topic: Debian Squeeze Network Issues
Replies: 47
Views: 9794

Re: Debian Squeeze Network Issues

Changing mice seems to have semi-resolved my immediate issue. I went from a Logitech Wireless to a "Monoprice special" wired optical mouse. However, that Logitech mouse has worked fine on multiple computers with several Linux distributions, Windows XP, and Windows 7. It should work fine with a power...
by marsman2020
Mon Jun 11, 2012 4:08 pm
Forum: Raspbian
Topic: strange repeating text message
Replies: 5
Views: 2341

Re: strange repeating text message

I've got the same problem with my "monoprice special" wired optical mouse that I got to use with the Pi. It loads and unloads all the time. It'd plugged into a powered hub, so it's not a power issue. It doesn't actually stop it from *working*, so I just uncommented a line and changed the logging set...
by marsman2020
Fri Jun 08, 2012 8:44 pm
Forum: Troubleshooting
Topic: Report: Apple Wired Keyboard Incompatible
Replies: 30
Views: 16772

Re: Report: Apple Wired Keyboard Incompatible

Based on this keyboard issue being resolved in Arch, I'm going to be checking out the 'gpm/X+LXDE kills networking when using a USB hub' issue there as well. The latest kernel in the Arch distribution for the Pi is a custom kernel that they compiled themselves, not one of the ones provided by the Fo...
by marsman2020
Fri Jun 08, 2012 5:17 pm
Forum: Automation, sensing and robotics
Topic: sensing a switch being closed
Replies: 10
Views: 2410

Re: sensing a switch being closed

An interesting tool for projects involving using the Pi unattended for long durations might be a watchdog of sorts for the Pi. For instance, a microcontroller sits and watches for the a GPIO output high from the Pi, which it expects every 10 seconds. If it doesn't see the GPIO output high, it switch...
by marsman2020
Fri Jun 08, 2012 4:49 pm
Forum: Raspbian
Topic: Raspbian "Pisces" R2 Image
Replies: 12
Views: 3801

Re: Raspbian "Pisces" R2 Image

I'm not convinced vm.swappiness = 0 is the best choice for the Pi. On a system with plenty of RAM, sure. On a system with limited RAM, it's probably better to let it swap. Maybe 10 or 20 might be the sweet spot.
by marsman2020
Fri Jun 08, 2012 3:49 pm
Forum: Troubleshooting
Topic: [debian] No keyboard/mouse after startx
Replies: 15
Views: 19577

Re: [debian] No keyboard/mouse after startx

Can you do three things from the console: -Install gpm console mouse driver -Stop gpm from starting on every reboot so it doesn't break your install when you reboot -Start gpm service and see if you experience the same hang/drop of USB devices as when starting X sudo apt-get install gpm sudo update-...
by marsman2020
Fri Jun 08, 2012 3:32 pm
Forum: Troubleshooting
Topic: Pi potentially broke my TV
Replies: 31
Views: 7083

Re: Pi potentially broke my TV

TVs get plugged into devices that are turned off all the time, though.... With the same SDA lines connected.
by marsman2020
Fri Jun 08, 2012 3:28 pm
Forum: Troubleshooting
Topic: Hub - No Solution Works..
Replies: 18
Views: 11373

Re: Hub - No Solution Works..

Either remove the USB polyfuse for the port connected to the hub (F1 is for the top port), or disconnect the 5V wire in the USB cable to the hub: OR Power the RPI from the same hub as is used to connect to the RPI port. The reason is that otherwise there is a chance the hub tries to power the RPI f...
by marsman2020
Fri Jun 08, 2012 3:22 pm
Forum: Troubleshooting
Topic: Caps Lock LED not working & autorepeat of last key press
Replies: 4
Views: 1236

Re: Caps Lock LED not working & autorepeat of last key pres

I have the Caps Lock LED issue even with my setup that I checked with an oscilloscope to make sure that the power always stayed good.

I have not had the repeating keypress issue.
by marsman2020
Wed Jun 06, 2012 9:51 pm
Forum: Raspbian
Topic: Raspbian on "external" USB hard drive
Replies: 53
Views: 21795

Re: Raspbian on "external" USB hard drive

If you install the gpm console mouse service and start it, does that also cause your ethernet/usb hdd to drop out the same as when you are sttempting to start x? Reference my github issue at https://github.com/raspberrypi/linux/issues/29 , powered hub + keyboard + mouse + (gpm or startx) -> networki...
by marsman2020
Wed Jun 06, 2012 9:03 pm
Forum: Troubleshooting
Topic: Debian Squeeze Network Issues
Replies: 47
Views: 9794

Re: Debian Squeeze Network Issues

Starting GPM will trigger this issue as well, without needing to start X at all. I have collected what information I have, including links to other threads on this forum where users have mentioned similar issues, into https://github.com/raspberrypi/linux/issues/29 I don't really know what more to do...
by marsman2020
Wed Jun 06, 2012 6:27 pm
Forum: Troubleshooting
Topic: Debian Squeeze Network Issues
Replies: 47
Views: 9794

Re: Debian Squeeze Network Issues

This isn't something impacting a "handful of users", I've seen ~7 threads here with multiple users that are having network issues when using powered hubs. On the Raspbmc forum, one user is seeing network drops whenever an IR remote receiver is plugged in.
by marsman2020
Tue Jun 05, 2012 10:25 pm
Forum: General discussion
Topic: RS vs Farnell
Replies: 6
Views: 1506

Re: RS vs Farnell

I have received Pis from both RS and Farnell Export (mailed all the way to the US). RS packaged the Pi in a nice corrugated cardboard box with double layer walls and foam above and below, with color documentation. This box was inside a padded envelope. It arrived via DHL International. Farnell packa...
by marsman2020
Tue Jun 05, 2012 9:14 pm
Forum: Raspbian
Topic: New Raspbian "Pisces" Image
Replies: 87
Views: 23781

Re: New Raspbian "Pisces" Image

I recommend trying chromium-browser (the open source branded version of Google Chrome) as well as midori.
by marsman2020
Tue Jun 05, 2012 5:29 pm
Forum: Troubleshooting
Topic: Debian Squeeze Network Issues
Replies: 47
Views: 9794

Re: Debian Squeeze Network Issues

Can you summarize your troubleshooting in more detail on my github issue? I haven't been able to get anyone else to do so.
by marsman2020
Tue Jun 05, 2012 4:07 pm
Forum: Troubleshooting
Topic: Debian Squeeze Network Issues
Replies: 47
Views: 9794

Re: Debian Squeeze Network Issues

I think there is a grave danger of "It must be your power supply" being accepted as the answer to all network related problems with the Pi. It is rapidly achieving the status of an urban myth. :roll: It's hardly as sinister as that. The truth is having read through most the troubleshooting issues t...
by marsman2020
Tue Jun 05, 2012 6:55 am
Forum: Troubleshooting
Topic: not working internet connection
Replies: 12
Views: 3669

Re: not working internet connection

For some people these issues are caused by a power problem, but in my case it's not. I spent quite a bit of time checking with an oscilloscope. See https://github.com/raspberrypi/linux/issues/29
by marsman2020
Tue Jun 05, 2012 5:05 am
Forum: Troubleshooting
Topic: Debian Squeeze Network Issues
Replies: 47
Views: 9794

Re: Debian Squeeze Network Issues

I don't think this is a polyfuse issue. The polyfuses takes some period of time to re-crystalize and pass current again, but I can cause the issue to appear and disappear at will simply by starting and stopping the GPM service, with no delay for the polyfuse to reset itself. I borrowed the oscillosc...
by marsman2020
Mon Jun 04, 2012 9:20 pm
Forum: Troubleshooting
Topic: Debian Squeeze Network Issues
Replies: 47
Views: 9794

Re: Debian Squeeze Network Issues

Same issue here - removing a 7 port Belkin powered USB hub from the equation restored networking to my GUI environment and returned terminal response within the gui to normal. Which Belkin? I've tried 2 Belkin MultiTT 7 port hubs, and both killed the Ethernet. Checked TP1-TP2 with an oscilloscope a...
by marsman2020
Mon Jun 04, 2012 9:03 pm
Forum: Troubleshooting
Topic: Hub - No Solution Works..
Replies: 18
Views: 11373

Re: Hub - No Solution Works..

Others have already pointed out the hub-feeding-power-back-into-the-Pi issue. As far as the kevent 4 errors once you have booted the Pi and connected the hub after booting - some people have resolved this by trying a different power supply, but there may be a software issue with attaching hubs to th...

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