Scratch

I was able to successfully install scratch on Dell Mini laptop w/ linux.
I think the link to install scratch is working so far...
Anyways, if I find a bug, I 'll report here.
Thanks,
Sailorgrl

The sound and midi problem in Scratch for Linux - next step:

1. Disable PulseAudio - not support on current version squeak-audio

2. Disable a sound server arTs (or use artsdsp in Scratch startup script)

3. Use startup script for the TiMidity ALSA sequencer interface (best variant -timidity automatically starting on boot system) or manual run timidity as midi-server (from root or sudo - very bad idea):

timidity -iADq -Os

Write this script and save as "midi_support". Set execute permission for this script.

#!/bin/sh
## MIDI support for Scratch

if egrep -q 'TiMidity' /proc/asound/seq/clients 2>/dev/null;
    then
## loop, if squeak running
    while ( ps -A | grep 'squeak' >/dev/null ); do   
## if Squeak midi port exist?
        if  ( aconnect -i | egrep -q 'Squeak' >/dev/null);
        then
             if ! egrep -q 'Connecting To: 128:0' /proc/asound/seq/clients 2>/dev/null
                then aconnect Squeak:0 TiMidity:0
             fi
        fi;
    done
    else echo "TiMidity server not run"
fi       

4. Run Scratch startup script.
6. Run 'midi-support' script
7. Selecr language interface for Scratch (!!!) for creating MIDI-port (???)
8. Test: play sound, sound record and midi work fine.

My startup  script for run Scratch:

/usr/bin/artsdsp /usr/share/Scratch/squeak/squeak -plugins /usr/share/Scratch/squeak /usr/share/Scratch/Scratch.image &


Scratch.image for Scratch1.4 Beta7 (works and in the previous versions).
Squeak - squeak-3.10-1.

My Linux: Mandriva 2009 (KDE 3.5)

Update PulseAudio to 0.9.15 for correct work on PulseAudio sound server

Do You Think You Can Run Scratch On My PSP? it has internet. I Never Tried The Linux Or 1.4 ?<change{bingbong1000}by(

I was able to get Scratch 1.4 on Kubuntu 9.04 Jaunty working (with drums and sound and everything) by manually extracting the squeak engine from the Linux 1.3 installer and dragging the Scratch.image file from my Windows 1.4 installation and (from a command line) running './squeak Scratch.image'. 
I haven't tested sharing a project or remote sensor connections tho.

UPDATE: THIS DOES NOT WORK!!!! When you try to open a project, you get a walkback, even when I used an OS X image and Scratch.ini 

Last edited by HaiTek (2009-07-08 16:02:17)

ftp://ftp.linuxcenter.ru/pub/Mandriva/EduMandriva/educontrib/2009.0/i586/scratch-1.3.1-2mdv2009.0.i586.rpm

ftp://ftp.linuxcenter.ru/pub/Mandriva/EduMandriva/educontrib/2009.0/i586/scratch-1.4.0-1edm2009.0.i586.rpm

ftp://ftp.linuxcenter.ru/pub/Mandriva/EduMandriva/educontrib/2009.1/i586/non-free/release/scratch-1.4.0-2edm2009.1.i586.rpm


ftp://ftp.pbone.net/mirror/ftp5.gwdg.de/pub/opensuse/repositories/Education/openSUSE_11.0/noarch/scratch-1.3.1-3.3.noarch.rpm

Hmmm.. Could be a bug. Best run before it attacks you :-)

mschlager wrote:

When I use the old startscript - not sure whether it was included with sratch 1.4 RC or with the scratch-1.3-installer:

Code:

#!/bin/sh
# This script is a squeakvm wrapper to load Scratch image.
# Reza Iskandar Achmad <reza@chipset.or.id>
#------------------------------------------------------------

aoss_wrapper=`which aoss`

exec $aoss_wrapper /usr/share/scratch/App/squeak \
        -plugins /usr/share/scratch/Plugins \
        -vm-sound-OSS \
        /usr/share/scratch/Scratch.image "${@}"

# Should check to see if Alsa is present, and if so use the wrapper.
# otherwise, just use OSS.

sound works fine - even the midi-blocks

[blocks]
<play note(  )for(  )secss>
<play drum(  )for(  )secss>
[/blocks]

I guess not even timidity is needed for that.
There's a huge delay though, but this may be an issue of the atom-cpu on the netbook.

Hi Mschlager -
Thanks for trying this out!

I think I'll update the package to use the old script by Reza, and to request that aoss be installed (also necessary for this approach to work). Playback does work on my machine (albeit delayed), but pressing record causes Scratch / Squeak to crash with error:

lightnin@Holdfast:~$ ./scratch-oss
squeak: /home/shiro/Squeak-3.10-4/platforms/unix/vm-sound-OSS/sqUnixSoundOSS.c:355: dspOpen: Assertion `dsp->fd < 0' failed.
Aborted

By the way, we decided to fake midi playback in the latest image, so we aren't really using timidity... I'll take out the dependency before I build the next package.

Just a quick question from a non-coder:
This is for Linux, but it also says "Ubuntu". My laptop's Linux OS is Fedora, will this still work?

Thanks in advance.

This is a reply for the fist post. This seems familiar since I had this before and I used this website that really helped me a lot. http://info.scratch.mit.edu/Linux_installer/How_to_Build_the_Scratch_Installer_for_Linux






Kristine
fast slim

Last edited by kskristinesmith (2009-08-02 02:38:44)

It works for me film streaming

tcb, what happens exactly when you try to install the deb?

I'm not quite sure exactly what happens, but I know that the deb wont work, and I think its because the internet isn't working.
@gershmer: I amn't even going near the command line.