#12598 NORM 13.1.0: [CL4] Touchscreen sometimes lost function when open Calculate.

[Zarro Boogs per Child]

#12598: [CL4] Touchscreen sometimes lost function when open Calculate.
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           Reporter:  tomyin           |       Owner:  erikos       
               Type:  defect           |      Status:  new          
           Priority:  normal           |   Milestone:  13.1.0       
          Component:  x window system  |     Version:  not specified
         Resolution:                   |    Keywords:               
        Next_action:  never set        |    Verified:  0            
Deployment_affected:                   |   Blockedby:               
           Blocking:                   |  
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Comment(by erikos):

 Replying to [comment:7 erikos]:
 > Replying to [comment:6 erikos]:
 > > Actually, I just came across the following: I booted my two XO-4
 machines (B1, C1). I used the B1 for a while to do some debugging. The C1
 did sit there idle.
 > >
 > > I thought I would do this test on the C1 unit again. And hey, I can
 use the mouse fine but touch interaction does not work. This machine has
 just been started, no further interaction besides some s/r cycles.
 > >
 > > I will attach my logs.
 > >
 >
 > Paul found in the logs that it failed to detect its touchscreen when it
 booted.
 > {{{
 > Mar  7 09:01:04 xo-1e-87-2f kernel: zforce: host-disable asserted,
 skipping driv
 > pgf:  er load
 > pgf:  Mar  7 09:01:04 xo-1e-87-2f kernel: zforce: set forceload=1 to
 override
 > pgf:  Mar  7 09:01:05 xo-1e-87-2f kernel: zforce_i2c_probe: failed
 > }}}
 >
 > Trying to reload the module with "modprobe -r zforce; modprobe zforce"
 did not work. Reloading with "modprobe -r zforce; modprobe zforce
 forceload=1" did bring it back and I could use touch interaction (the
 cursor hiding did not work though).
 >
 > zforce firmware version "dmesg | grep zforce" is 0.0.0.9.
 >

 The touchscreen was as well not present after reboot. I
 [http://wiki.laptop.org/go/XO-4#Software_upgrade_considerations upgraded
 the firmware to 0.0.0.10] and now touch interaction works after booting.

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Ticket URL: <http://dev.laptop.org/ticket/12598#comment:8>
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