Ticket #11659 (closed defect: fixed)

Opened 3 years ago

Last modified 2 years ago

Sentelic touchpad behaving unpredictable

Reported by: erikos Owned by: martin.langhoff
Priority: high Milestone: 1.75-software
Component: distro Version: 1.75-B1
Keywords: Cc: greenfeld, pgf
Action Needed: no action Verified: no
Deployments affected: Blocked By:


Today I have seen the weird trackpad feedback bug again. The cursor does not move as expected when using the trackpad. Here are the testing samples:

- I have the latest build os28 - it does npt go away with idle time - I am on power battery fully charged, switching on battery does not change it - tested with anothe ruser, same behavior - "olpc-fsp-regs verify" does succeed, behavior unchanged


olpc-fsp-regs (2.2 kB) - added by martin.langhoff 3 years ago.

Change History

Changed 3 years ago by erikos

  • owner changed from Eben to pbrobinson
  • component changed from interface-guidelines to distro

- rebooting did bring back normal behavior

Changed 3 years ago by martin.langhoff

  • cc greenfeld added
  • owner changed from pbrobinson to martin.langhoff
  • priority changed from normal to high

We need to figure out steps to repro. I am also asking Sentelic whether their driver recalibrates periodically...

Changed 3 years ago by martin.langhoff

  • summary changed from Touchpad behaving unprodictable to Sentelic touchpad behaving unpredictable

The config in os28 is "5F".

Changed 3 years ago by martin.langhoff

The Sentelic team has seen the issue as well. They are working on it.

Changed 3 years ago by martin.langhoff

Changed 3 years ago by martin.langhoff

I've attached an olpc-fsp-regs script with an updated configuration, based on recomendation from Sentelic. This adds to 5F the following settings:

  0x17 0xaa
  0x48 0xa3
  0x61 0x00

Please test and let us know!

Changed 3 years ago by martin.langhoff

  • cc pgf added

Changed 3 years ago by godiard

This config improve a lot the touchpad in my rubber keyboard ramp xo. Continue using it and report if there are any issue.

Changed 3 years ago by martin.langhoff

  • next_action changed from diagnose to test in build

Test 6F config in os30

Changed 2 years ago by greenfeld

Personally I like the configuration in 11.3.1 os30 as used on an XO-1.75.

However I have never had as much of an issue with this problem as compared to other users. So perhaps someone else should close the ticket.

Changed 2 years ago by greenfeld

  • status changed from new to closed
  • next_action changed from test in build to no action
  • resolution set to fixed

Since no one else it commenting on this ticket I presume it can be closed.

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