There is definately a problem with sensekey being run in Sugar. Apparently 
it has to do with X windows, as this is what the log file indicates.

The attached test csd runs fine from the console on the OLPC, including 
printing out the ASCII characters as struck on the keyboard (which is the 
expected behavior).

In Sugar, however, the run aborts immediately; the log file carries on about 
an X window system error. (The other attached file is the simplest possible 
Python GUI.)

When kasc is initialized to 0, and this line substituted for sensekey (only 
the single line is changed, as indicated in the csd), the 10-second file 
runs fine - except, of course, there is no alternation of pitches when 
pressing ASCII keys. Obviously the problem involves sensekey and X windows.

Can one of the developers investigate (Victor, Brian, Andres, or anyone else 
involved with OLPCsound), or indicate where I should turn?

I've 4 csd's in my current OLPC Activity project; the two using MIDI 
controllers are working fine in Sugar, the two using ASCII keystrokes as a 
control mechanism (through sensekey) are hanging me up completely.

The two attached files are intended to be inserted into Victor's Wave 
activity - in the Waves.activity directory. The attached waves.py replaces 
Victor's of the same name. As mentioned above, the sensekey.csd runs fine 
from the console and command line: csound sensekey.csd (from wherever 
sensekey.csd is located).

I really hope this sensekey issue can be sorted, and made to work in Sugar. 
50% of my project depends on it.

As always, I much appreciate the help.

Art Hunkins

----- Original Message ----- 
From: "Art Hunkins" 
To: 
Sent: Friday, May 01, 2009 9:57 PM
Subject: Re: [Csnd] sensekey and Sugar (OLPC)


>A followup:
>
> A similar sensekey/ASCII-based csd issues two slightly different error 
> messages (with the same run abort):
>
> rainbow-daemon: Fatal IO error 0 (Success) on X server :0.0
> or
> rainbow-daemon: Fatal IO error 11 (Resource temporarily unavailable) on X 
> server :0.0
>
> Sometimes the run returns to Sugar, sometimes not.
>
> The scripting seems to be right, and nearly identical for the two csd's.
>
> Art Hunkins
>
> ----- Original Message ----- 
> From: "Art Hunkins" 
> To: 
> Sent: Friday, May 01, 2009 9:28 PM
> Subject: [Csnd] sensekey and Sugar (OLPC)
>
>
>>I have a csd that runs impeccably from the XO console, but fails in Sugar 
>>(a Python script is running as an XO project; I've been making progress). 
>>I'm fairly certain the problem is sensekey, or the way in which Sugar is 
>>(or isn't) dealing with ASCII keystrokes.
>>
>> The Sugar error occurs precisely at the first ASCII keystroke (prior to 
>> that, the run is fine). With the keystroke, the run aborts and exits to 
>> Sugar.
>>
>> The log shows the error message to be:
>> rainbow-daemon: Fatal IO error 12 (Cannot allocate memory) on X server 
>> :0.0
>> then a bit later:
>> Csound tidy up: Segmentation fault
>>
>> What do I need to change?
>>
>> Art Hunkins
>>
>>
>> Send bugs reports to this list.
>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe 
>> csound"
> 

Hi Art,

The rainbow-daemon is the security system for Sugar/OLPC. It is very
restrictive, so things that usually work on other systems require
certain changes to work on Sugar. Since you are already using python,
I would recommend taking a look at how things are done in TamTam,
which also receives keyboard events and passes them to csound. They
grab the keyboard events in python (from the main Activity subclass):

http://git.sugarlabs.org/projects/tamtam-branch/repos/mainline/blobs/master/TamTamMini.activity/TamTamMini.py#line53

 and then pass the to csound via the software bus:
http://git.sugarlabs.org/projects/tamtam-branch/repos/mainline/blobs/master/TamTamMini.activity/Mini/miniTamTamMain.py#line552

Cheers,
Andrés

On Tue, May 5, 2009 at 1:02 PM, Art Hunkins  wrote:
> There is definately a problem with sensekey being run in Sugar. Apparently
> it has to do with X windows, as this is what the log file indicates.
>
> The attached test csd runs fine from the console on the OLPC, including
> printing out the ASCII characters as struck on the keyboard (which is the
> expected behavior).
>
> In Sugar, however, the run aborts immediately; the log file carries on about
> an X window system error. (The other attached file is the simplest possible
> Python GUI.)
>
> When kasc is initialized to 0, and this line substituted for sensekey (only
> the single line is changed, as indicated in the csd), the 10-second file
> runs fine - except, of course, there is no alternation of pitches when
> pressing ASCII keys. Obviously the problem involves sensekey and X windows.
>
> Can one of the developers investigate (Victor, Brian, Andres, or anyone else
> involved with OLPCsound), or indicate where I should turn?
>
> I've 4 csd's in my current OLPC Activity project; the two using MIDI
> controllers are working fine in Sugar, the two using ASCII keystrokes as a
> control mechanism (through sensekey) are hanging me up completely.
>
> The two attached files are intended to be inserted into Victor's Wave
> activity - in the Waves.activity directory. The attached waves.py replaces
> Victor's of the same name. As mentioned above, the sensekey.csd runs fine
> from the console and command line: csound sensekey.csd (from wherever
> sensekey.csd is located).
>
> I really hope this sensekey issue can be sorted, and made to work in Sugar.
> 50% of my project depends on it.
>
> As always, I much appreciate the help.
>
> Art Hunkins
>
> ----- Original Message ----- From: "Art Hunkins" 
> To: 
> Sent: Friday, May 01, 2009 9:57 PM
> Subject: Re: [Csnd] sensekey and Sugar (OLPC)
>
>
>> A followup:
>>
>> A similar sensekey/ASCII-based csd issues two slightly different error
>> messages (with the same run abort):
>>
>> rainbow-daemon: Fatal IO error 0 (Success) on X server :0.0
>> or
>> rainbow-daemon: Fatal IO error 11 (Resource temporarily unavailable) on X
>> server :0.0
>>
>> Sometimes the run returns to Sugar, sometimes not.
>>
>> The scripting seems to be right, and nearly identical for the two csd's.
>>
>> Art Hunkins
>>
>> ----- Original Message ----- From: "Art Hunkins" 
>> To: 
>> Sent: Friday, May 01, 2009 9:28 PM
>> Subject: [Csnd] sensekey and Sugar (OLPC)
>>
>>
>>> I have a csd that runs impeccably from the XO console, but fails in Sugar
>>> (a Python script is running as an XO project; I've been making progress).
>>> I'm fairly certain the problem is sensekey, or the way in which Sugar is (or
>>> isn't) dealing with ASCII keystrokes.
>>>
>>> The Sugar error occurs precisely at the first ASCII keystroke (prior to
>>> that, the run is fine). With the keystroke, the run aborts and exits to
>>> Sugar.
>>>
>>> The log shows the error message to be:
>>> rainbow-daemon: Fatal IO error 12 (Cannot allocate memory) on X server
>>> :0.0
>>> then a bit later:
>>> Csound tidy up: Segmentation fault
>>>
>>> What do I need to change?
>>>
>>> Art Hunkins
>>>
>>>
>>> Send bugs reports to this list.
>>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
>>> csound"
>>
>
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-- 


Andrés

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