[Sugar-devel] XO4 touch stopped working (SOLVED)

[Juan Cubillo]

Serial number for the XO is SHC31100189

I'll keep using it for a few days to check if the repair lasts...

- Juan



On 10/25/2013 04:37 PM, James Cameron wrote:
> We are aware of a manufacturing process problem that caused what you
> observed, but it was fixed some time ago.  We know exactly when it was
> fixed.  When you give us the serial number, I can check if the laptop
> was made before the fix or after.
>
> The change you've made sounds reasonable, but it may not last.  Keep
> monitoring the situation.
>
> p.s. use the devel at lists.laptop.org mailing list for posts related to
> XO-4 and unrelated to Sugar.  I've intentionally retained all of
> thread below.
>
> On Fri, Oct 25, 2013 at 03:19:52PM -0600, Juan Cubillo wrote:
>> Tried the test /touchscreen and this message appeared:
>>
>> missing IR PCB
>> failed to boot
>>
>> Tried the command again and a whole lot of code appeared (can't find my serial
>> dongle so I can't copy it here)
>>
>> Tried the test for a third time and the message now was:
>>
>> missing IR PCB
>> No touchscreen present
>>
>> I opened the screen and found that the conector for the ZIF cable was damaged
>> and required some pressure to make proper contact. I just inserted some folded
>> tape to keep it pressured and it's now working.
>>
>> No damage or mishandling was given to the laptop on my part so if there are any
>> other reports of touch not working OLPC should stay aware in case the conector
>> might be damaged from factory.
>>
>> Anyway... it's now working just fine :)
>>
>> Thanks for the info!
>>
>> Juan Adrián Cubillo
>> Director de Tecnología | Fundación Quirós Tanzi
>> Web: http://fundacionqt.org FB:Fundación
>> Tel: (506) 2293-2460 ext211 | Cel: (506) 8832-1824
>>
>> On 10/25/2013 01:39 PM, Gonzalo Odiard wrote:
>>
>>      You can check the touchscreen from the bios:
>>      * Start the xo
>>      * While the startup sound is played, press ESC key
>>      You will see a "ok" prompt.
>>      * Type:
>>      test /touchscreen
>>      and press enter.
>>      The screen will turn black and you can test it with until 4 fingers.
>>
>>      Gonzalo
>>
>>
>>      On Fri, Oct 25, 2013 at 4:32 PM, Juan Cubillo <jcubillo at fundacionqt.org>
>>      wrote:
>>
>>          Hello,
>>
>>          I recently received an XO4 touch to test. As far as I know, it came
>>          with the default 13.2 Sugar image.
>>
>>          Last night I updated the system with yum update "just because". The
>>          touch option stopped working but I just assumed it was due to the
>>          update which might have broken some package or library.
>>
>>          This morning, I flashed the XO with OLPC's stable sugar build to
>>          restore the XO and the touch option is still not working.
>>
>>          Is there any chance the update I made last night might have updated
>>          something that broke the touch option? Some firmware maybe?
>>
>>          Also, is there any way to test if the XO is able to correctly detect
>>          the touch hardware and test it?
>>
>>          I tried to search the mailing list and wiki for this but found no info
>>          available.
>>
>>           - Juan
>>         
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>>
>>
>>
>>
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