XO 1.75 C1 ECOs: Difference between revisions
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(Created page with '{{OLPC}} These are recommended engineering change orders (ECOs) to the C1 prototype of the XO-1.75 laptop. This is NOT a list of changes from C1 to C2, that i…') |
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==Loss of first keypress when suspended== |
==Loss of first keypress when suspended== |
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If an unmodified XO-1.75 laptop is suspended, and a user presses a key, the laptop wakes up but the keypress is lost (<trac>11401</trac>). |
If an unmodified XO-1.75 laptop is suspended, and a user presses a key, the laptop wakes up but the keypress is lost (<trac>11401</trac>). |
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[[Image:XO1.75_B1_ticket11401.jpg|thumbnail|Fixing 11401]] |
[[Image:XO1.75_B1_ticket11401.jpg|thumbnail|Fixing <trac>11401</trac>]] |
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* Populate R352 and R354 with zero ohm resistors (or short them). |
* Populate R352 and R354 with zero ohm resistors (or short them). |
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Latest revision as of 10:07, 11 December 2011
This page is monitored by the OLPC team.
These are recommended engineering change orders (ECOs) to the C1 prototype of the XO-1.75 laptop. This is NOT a list of changes from C1 to C2, that is located elsewhere.
Loss of first keypress when suspended
If an unmodified XO-1.75 laptop is suspended, and a user presses a key, the laptop wakes up but the keypress is lost (<trac>11401</trac>).
- Populate R352 and R354 with zero ohm resistors (or short them).
- Install the most recent OFW or EC code.
Done to very few laptops.
Camera Problems
If the camera doesn't work right, it is possibly due to a marginal power switch.
- Replace Q20 with an AO3402, or even with another AO3404 (part currently mounted).
Done to very few laptops --- this problem wasn't detected until the XO-3 A1 bringup.