http://elinux.org/index.php?title=Scratch_on_RPi&feed=atom&action=history 2013-05-23T12:02:29Z Revision history for this page on the wiki MediaWiki 1.21alpha http://elinux.org/index.php?title=Scratch_on_RPi&diff=217724&oldid=prev 2013-02-10T21:10:08Z

<p></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 21:10, 10 February 2013</td> </tr><tr><td colspan="2" class="diff-lineno">Line 17:</td> <td colspan="2" class="diff-lineno">Line 17:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>2.&#160; Scratch runs very slowly when variables are displayed on the screen (high scores etc)</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>2.&#160; Scratch runs very slowly when variables are displayed on the screen (high scores etc)</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">[[Scratch_FixVariableDisplayIssue|Fix Variable Display Slowness Issue]]</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">(This fix is now in the updated Raspian - just do)</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>&#160;</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">sudo apt-get update</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>&#160;</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">sudo apt-get upgrade</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>&#160;</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>3.&#160; Using Sound blocks causes crashes</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>3.&#160; Using Sound blocks causes crashes</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">This has also been fixed&#160; - see above </ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">[[Scratch_FixSoundCrashes|Fix Crashes when using Sound blocks]]</del></div></td><td colspan="2">&#160;</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>4.&#160; Key presses &quot;Stick&quot; when using KeyPressed Sensor blocks</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>4.&#160; Key presses &quot;Stick&quot; when using KeyPressed Sensor blocks</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">[[Scratch_FixStickyKeys|Fix &quot;Sticky Keys&quot; issue when using Key ... Pressed sensing block]]</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">This has also been fixed - see above</ins></div></td></tr> <!-- diff cache key elinux:diff:version:1.11a:oldid:210566:newid:217724 --> </table>

Simplesi http://elinux.org/index.php?title=Scratch_on_RPi&diff=210566&oldid=prev 2013-01-12T23:35:45Z

<p>Add StickyKeys Fix Link</p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 23:35, 12 January 2013</td> </tr><tr><td colspan="2" class="diff-lineno">Line 25:</td> <td colspan="2" class="diff-lineno">Line 25:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>4.&#160; Key presses &quot;Stick&quot; when using KeyPressed Sensor blocks</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>4.&#160; Key presses &quot;Stick&quot; when using KeyPressed Sensor blocks</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">''</del>Fix <del class="diffchange diffchange-inline">info to follow''</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">[[Scratch_FixStickyKeys|</ins>Fix <ins class="diffchange diffchange-inline">&quot;Sticky Keys&quot; issue when using Key ... Pressed sensing block]]</ins></div></td></tr> <!-- diff cache key elinux:diff:version:1.11a:oldid:207404:newid:210566 --> </table>

Simplesi http://elinux.org/index.php?title=Scratch_on_RPi&diff=207404&oldid=prev 2013-01-04T23:43:35Z

<p>Add in link to sound crash fix</p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 23:43, 4 January 2013</td> </tr><tr><td colspan="2" class="diff-lineno">Line 21:</td> <td colspan="2" class="diff-lineno">Line 21:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>3.&#160; Using Sound blocks causes crashes</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>3.&#160; Using Sound blocks causes crashes</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">''</del>Fix <del class="diffchange diffchange-inline">info to follow''</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">[[Scratch_FixSoundCrashes|</ins>Fix <ins class="diffchange diffchange-inline">Crashes when using Sound blocks]]</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>4.&#160; Key presses &quot;Stick&quot; when using KeyPressed Sensor blocks</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>4.&#160; Key presses &quot;Stick&quot; when using KeyPressed Sensor blocks</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>''Fix info to follow''</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>''Fix info to follow''</div></td></tr> </table>

Simplesi http://elinux.org/index.php?title=Scratch_on_RPi&diff=207380&oldid=prev 2013-01-04T22:22:43Z

<p></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 22:22, 4 January 2013</td> </tr><tr><td colspan="2" class="diff-lineno">Line 20:</td> <td colspan="2" class="diff-lineno">Line 20:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>3.&#160; Using Sound blocks causes crashes</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>3.&#160; Using Sound blocks causes crashes</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">''Fix info to follow''</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>4.&#160; Key presses &quot;Stick&quot; when using KeyPressed Sensor blocks</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>4.&#160; Key presses &quot;Stick&quot; when using KeyPressed Sensor blocks</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">''Fix info to follow''</ins></div></td></tr> <!-- diff cache key elinux:diff:version:1.11a:oldid:207344:newid:207380 --> </table>

Simplesi http://elinux.org/index.php?title=Scratch_on_RPi&diff=207344&oldid=prev 2013-01-04T21:56:58Z

<p>Add Issues 3 and 4 and Link to Issue 2 fix</p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 21:56, 4 January 2013</td> </tr><tr><td colspan="2" class="diff-lineno">Line 16:</td> <td colspan="2" class="diff-lineno">Line 16:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>2.&#160; Scratch runs very slowly when variables are displayed on the screen (high scores etc)</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>2.&#160; Scratch runs very slowly when variables are displayed on the screen (high scores etc)</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Scratch_FixVariableDisplayIssue|Fix Variable Display Slowness Issue]]</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">3.&#160; Using Sound blocks causes crashes</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">4.&#160; Key presses &quot;Stick&quot; when using KeyPressed Sensor blocks</ins></div></td></tr> <!-- diff cache key elinux:diff:version:1.11a:oldid:207338:newid:207344 --> </table>

Simplesi http://elinux.org/index.php?title=Scratch_on_RPi&diff=207338&oldid=prev 2013-01-04T21:51:37Z

<p>Main info on improving Scratch performance on the RPi</p> <p><b>New page</b></p><div>Scratch is included on the default Raspian distribution and all comments here refer to Scratch on the latest Raspbian image.<br /> <br /> For a full information on how to use and program using Scratch, please refer to the main Scratch website.<br /> <br /> This page was created to allow people to improve the performance of the current default Scratch implementation which has not been optimised for the RPi.<br /> <br /> There are some known bugs which can be fixed or alleviated with some little fixes.<br /> <br /> It is our (simplesi and all the others) intention to implement an auto-update script that can do all the necessary work automatically but at the moment things have to be done step-by-step<br /> <br /> Known Issues that can be improved upon<br /> <br /> 1. Scratch runs slowly in general.<br /> <br /> Increase the speed of your RPi by using the turbo-mode option within Raspbian. This gives increased CPU speed during intensive work and makes a noticeable effect when editing and running complex scripts.<br /> <br /> 2. Scratch runs very slowly when variables are displayed on the screen (high scores etc)</div>

Simplesi