XO-1/Touchpad/Issues: Difference between revisions
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m (moved Three known touchpad issues to XO-1/Touchpad/Issues: so many models these days, but this page applies only to one.) |
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<noinclude>[[Category:Touchpad]]</noinclude> |
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{{G1G1 Support FAQ}} |
{{G1G1 Support FAQ}} |
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__NOTOC__ |
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Note: This information is relevant for early production XO-1 units with ALPS touchpads, identified as "CL1" during early boot. |
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There are three known touchpad issues: |
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Occasionally, a laptop's touchpad will behave abnormally. This behavior includes the pointer jumping to a corner of the screen, or moving wildly. On current software ([[Release notes|release 8.2 or better]], [[USB upgrade|consider upgrading!]]), the touchpad will be automatically recalibrated when this happens. You should hold your fingers away from the touchpad when this happens. [[Touchpad_driver_changes|Later Touchpad driver changes]] further reduce this problem. |
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===== The pointer jumps to the bottom-right corner of the screen ===== |
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A recalibration of the touchpad can be manually invoked using the [[Recalibrating Touchpad|"four-finger salute"]] (Escape + Frame + Right Arrow + Fn, with Fn pressed last). Work-arounds in extreme cases include using a common USB mouse with the laptop. |
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This can happen right after you touch the touchpad. Rebooting often helps. We are [http://dev.laptop.org/ticket/2804 testing a fix] that should resolve this problem in the next software release ([http://dev.laptop.org/milestone/Update.1 Update.1]) which we expect to be downloadable in early spring 2008. Until then, a standard USB mouse can be used to get around the problem. |
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This intermittent problem often goes away automagically after several minutes/hours.[[User:IainDavidson|*]] |
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The four-finger salute (Escape + Frame + Right Arrow + Fn, with Fn pressed last) also usually fixes this. |
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===== The pointer moves around by itself ===== |
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Instead of reliably following your finger, the pointer can move around on its own, sometimes when a hand is close to it. This means that your laptop may need to be recalibrated. |
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You can fix this problem by rebooting your laptop (turn off your laptop and restart it). After you restart your laptop, do not touch the touchpad for a few minutes. Automatic recalibration on bootup may fix the problem. |
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If restarting your XO doesn't work, please try the manual [[Recalibrating Touchpad|recalibration]] procedure (the four-finger salute): |
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<ol> |
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<li> Press the following three keys at one time: the upper left, upper right, and lower right of the keyboard. |
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<li> Press the fourth key (the lower left) last, and then release all keys. |
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</ol> |
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If the four-finger salute doesn't fix the problem, shut down the laptop and remove all power sources (power adapter and battery) from the laptop for 10 seconds. Add the power sources back to the laptop (reinsert battery and plug in power adapter) and power the laptop back on. Do not touch the touchpad while the laptop is powering up. |
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===== Mouse moves mostly vertically ===== |
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The touchpad works fine vertically but is very jumpy horizontally. This appears to result from bad touchpad hardware. Users who've explicitly confirmed this [http://dev.laptop.org/ticket/5575 detailed diagnosis] may email "help AT laptop.org" to apply for an [[Support_FAQ#What_is_the_warranty_info.3F_RMA_process.3F|RMA]] return/replacement within 30 days of receipt of their laptop. |
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Latest revision as of 04:50, 3 February 2012
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Note: This information is relevant for early production XO-1 units with ALPS touchpads, identified as "CL1" during early boot.
Occasionally, a laptop's touchpad will behave abnormally. This behavior includes the pointer jumping to a corner of the screen, or moving wildly. On current software (release 8.2 or better, consider upgrading!), the touchpad will be automatically recalibrated when this happens. You should hold your fingers away from the touchpad when this happens. Later Touchpad driver changes further reduce this problem.
A recalibration of the touchpad can be manually invoked using the "four-finger salute" (Escape + Frame + Right Arrow + Fn, with Fn pressed last). Work-arounds in extreme cases include using a common USB mouse with the laptop.