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by sdjf
Tue Feb 10, 2015 4:45 pm
Forum: Arch
Topic: Pi2 falls back to software rendering
Replies: 13
Views: 4822

Re: Pi2 falls back to software rendering

Don't forget LXDE, meant to be lightweight. I just run Openbox without LXDE, but people often run the two together. What I like about Openbox is being able to easily code keyboard mouse emulation.
by sdjf
Tue Feb 10, 2015 12:44 am
Forum: Arch
Topic: Pi2 falls back to software rendering
Replies: 13
Views: 4822

Re: Pi2 falls back to software rendering

Just because you are running "latest" does not mean some packages might need updating, why not use pacman -Syu? I have neither cinnamon nor a pi2 but that is one thing that would need doing anyhow. Also, did you google this? Did you try starting it with another DM and selecting "Cinnamon" rather tha...
by sdjf
Mon Feb 09, 2015 5:29 pm
Forum: Troubleshooting
Topic: USB Touch Screen Stops Working After Clean Raspbain Install
Replies: 7
Views: 2634

Re: USB Touch Screen Stops Working After Clean Raspbain Inst

So does this mean that since evdev has been pre-installed, Raspbian does support touchscreens without any compiling needed? I understand that settings will need to be configured properly. Everything else I find makes it sound like it would not be possible to attach an hdmi touchscreen without recomp...
by sdjf
Thu Feb 05, 2015 4:31 pm
Forum: Assistive technology and accessibility
Topic: Need help for project for blind people
Replies: 10
Views: 10903

Re: Need help for project for blind people

You might get more help in a subforum devoted to special projects, I am not sure which one. But the idea will be that after the person makes an image, it will need to be processed by OCR (optical character recognition software) and then that output sent to text to speech software such as flite. THe ...
by sdjf
Thu Feb 05, 2015 4:24 pm
Forum: Beginners
Topic: Logging any data into a file stored on the SD card
Replies: 3
Views: 1330

Re: Logging any data into a file stored on the SD card

I do NOT know Matlab, but googling around, I do see there seems to be a csvwrite command. In some languages, printing and saving to a file are different commands. That does not mean it has to be hard. If you post specific code and error output from when you try to save the file direct to your Pi, th...
by sdjf
Thu Feb 05, 2015 4:11 pm
Forum: Arch
Topic: Arch on Pi2
Replies: 26
Views: 14886

Re: Arch on Pi2

And if you can wait, there will be an Arch tar ball available, I would hope fairly soon. There are other posts in various subforums at archlinuxarm.org telling us that pepedog has one on the way to him, and that archlinuxarm development for Raspberry Pi 2 is in process. Unfortunately, because of the...
by sdjf
Mon Jan 26, 2015 7:17 pm
Forum: Arch
Topic: What happens when NOOBs starts installing Arch?
Replies: 9
Views: 2132

Re: What happens when NOOBs starts installing Arch?

I cannot answer your question about the order of installation activity, but i can make a suggestion about that article you have lost. when I had an SD card whose file system got totally trashed, I created an .img file of the whole card. I then grepped through that img file for critical keywords, and...
by sdjf
Mon Jan 19, 2015 8:34 am
Forum: Arch
Topic: How to get arch on Raspberry pi (WINDOWS USERS)
Replies: 2
Views: 1236

Re: How to get arch on Raspberry pi (WINDOWS USERS)

The big problem with using the old image is there is no official support by Arch for that very old image now, so be aware of that. I tried linking to the above from the archlinuxarm forum itself and was totally frowned upon. Also, people will need to know how to update, you cannot use the commands t...
by sdjf
Wed Dec 31, 2014 2:08 am
Forum: Arch
Topic: [Help] Creating a netctl startup wrapper code
Replies: 1
Views: 887

Re: [Help] Creating a netctl startup wrapper code

I don't know if there is a better way to do this, but you certainly can write a script to do what you need to do. And if you discover better ways to implement the various steps, you can modify your script accordingly. I script going online via dialup using bash, so the issues are different, but it t...
by sdjf
Wed Dec 31, 2014 2:02 am
Forum: Arch
Topic: Help installing Arch
Replies: 5
Views: 2080

Re: Help installing Arch

You do not need to be connected to the internet to update Arch on the Raspberry Pi, but updating is infinitely more complex if you do it without your Pi having internet access. The basic idea is that you have to have some kind of computer that does have internet access, and transfer the information ...
by sdjf
Sun Dec 28, 2014 5:11 pm
Forum: Arch
Topic: Arch upgrade followed by java crash
Replies: 11
Views: 2987

Re: Arch upgrade followed by java crash

IF strace runs without a problem, then try starting java again with strace, and see where it hangs. Did you save the output file and examine it when you ran strace? That would have been java.strace (or whatever you named it). It would show system calls and what went wrong, I had you route the output...
by sdjf
Sun Dec 28, 2014 10:02 am
Forum: Arch
Topic: Arch upgrade followed by java crash
Replies: 11
Views: 2987

Re: Arch upgrade followed by java crash

I am worried you may end up breaking other packages if you remove all files it depends on. Read the man page for pacman and the following https://wiki.archlinux.org/index.php/pacman https://wiki.archlinux.org/index.php/Pacman_tips Since you are getting the same error with strace as with java, and st...
by sdjf
Fri Dec 26, 2014 7:29 pm
Forum: Arch
Topic: Arch upgrade followed by java crash
Replies: 11
Views: 2987

Re: Arch upgrade followed by java crash

Google for "exec format error" Archlinux, it might be a permissions problem.

do "ls -l /usr/bin/strace /usr/bin/java /usr/bin/bash"

and "whoami"
by sdjf
Fri Dec 26, 2014 1:05 pm
Forum: Arch
Topic: Arch upgrade followed by java crash
Replies: 11
Views: 2987

Re: Arch upgrade followed by java crash

Maybe it might help to install strace and start java with strace, to see what the system calls are and where the process breaks down. It is in the repository if you do not already have it. strace is pretty straightforward to use, of course read man page to get details, but basic syntax is: to increa...
by sdjf
Fri Dec 26, 2014 12:49 am
Forum: Arch
Topic: Arch upgrade followed by java crash
Replies: 11
Views: 2987

Re: Arch upgrade followed by java crash

Did you sync and reboot after upgrading? I believe the up to date arch systems do that anyhow on the Pi, but it does not hurt. And did you look to see if there is anything in your /var/log/pacman.log about java that might provide a clue? Were there any errors or suggestions that flashed on the scree...
by sdjf
Fri Dec 19, 2014 3:36 pm
Forum: Arch
Topic: Help debug: ssh freezes, ethernet + usb go down [NOT SOLVED]
Replies: 27
Views: 26293

Re: Help debug: ssh freezes, ethernet + usb go down [NOT SOL

When you say disconnect, you mean without touching any hardware, using software? I ask because I used to have everything go down when I would pull out a USB device physically, either because of a power surge or because I would accidentally jiggle a usb connector. On my Pi, the connectors are loose, ...
by sdjf
Wed Nov 26, 2014 3:29 am
Forum: Arch
Topic: Help debug: ssh freezes, ethernet + usb go down [NOT SOLVED]
Replies: 27
Views: 26293

Re: Help debug: ssh freezes, ethernet + usb go down [NOT SOL

What is a "USB Key"?? Do you mean keyboard? Which model of Pi do you have? Are you talking software or hardware disconnects? check your USB ports on the Pi. Mine are loose, and I found I had trouble if I jiggled the cables. Also look into power surge issues. I know some of these events for me were g...
by sdjf
Thu Nov 20, 2014 1:49 am
Forum: Arch
Topic: Help debug: ssh freezes, ethernet + usb go down [NOT SOLVED]
Replies: 27
Views: 26293

Re: Help debug: ssh freezes, ethernet + usb go down [NOT SOL

I no longer have the problem, not sure why. I suggest logging the output of several diagnostics regularly, looking for a pattern. It may be that I have not had the problem for hardware reasons, but could also be because I noticed things froze up when certain conditions occurred that are not logged i...
by sdjf
Thu Nov 13, 2014 4:02 am
Forum: Beginners
Topic: Beginner making a calendar - HELP wanted!
Replies: 5
Views: 1223

Re: Beginner making a calendar - HELP wanted!

I think you can get your Raspberry Pi to do all kinds of things, but whether you can do them all with Google calendar or need to also install some other software for the other stuff, I do not know. I have never used Google Calendar, but I think the question in my mind, that someone who is familiar w...
by sdjf
Mon Nov 10, 2014 5:27 pm
Forum: Arch
Topic: raspberrypi.org image install instructions should be updated
Replies: 41
Views: 21757

Re: raspberrypi.org image install instructions should be upd

Several things in response to your post. Read the other threads in this topic, a careful perusal of them shows that Arch was making images that the Foundation was not putting on the downloads page except once in a great while, and finally made a decision to stop doing so, I believe because of an ong...
by sdjf
Sun Nov 09, 2014 6:39 pm
Forum: Arch
Topic: raspberrypi.org image install instructions should be updated
Replies: 41
Views: 21757

Re: raspberrypi.org image install instructions should be upd

A few of the image mirrors still have the July 2013 and earlier Arch images in their downloads. See the list at ELinux. It looks like July 2013 was the last image available as a separate image, if you use one of these instead of the current tarball, you will need to update with pacman -Syu and reboo...
by sdjf
Sat Nov 01, 2014 12:23 am
Forum: Arch
Topic: ssh - connection refused - moving /var to own HD partition
Replies: 4
Views: 2558

Re: ssh - connection refused - moving /var to own HD partiti

If restarting the ssh daemon does not work, run route and ifconfig commands to see what is going on. Possibly the Pi changed IP addresses on you when you moved the root partition? Just a wild guess, but something else to look at. Also, the pi might be running ethernet on eth1 instead of eth0, for ex...
by sdjf
Wed Oct 29, 2014 5:54 pm
Forum: Arch
Topic: ssh - connection refused - moving /var to own HD partition
Replies: 4
Views: 2558

Re: ssh - connection refused - moving /var to own HD partiti

You might need to restart the ssh daemon. Is it running when the connection is refused?
by sdjf
Sun Oct 12, 2014 5:49 am
Forum: Arch
Topic: Is Shellshock patched?
Replies: 5
Views: 1747

Re: Is Shellshock patched?

Note the October release is dated 1 October. Bash was updated after that, so if you want the most up to date version of the patch, make sure you run pacman -Syu after installation, to get the most up to date version of bash. You can get the latest version of the script that checks for vulnerabilitie...
by sdjf
Wed Oct 01, 2014 8:49 pm
Forum: Beginners
Topic: USB Modem
Replies: 1
Views: 407

Re: USB Modem

I don't know python, but do think what you need to do is build in a test for whether the normal device exists and, if it does not, then see what the device name is that has been assigned to your modem. I use a USB modem, but I don't recall it ever being assigned a different /dev address. You probabl...

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