#8006 HIGH 8.2.0 (: joyride-2301: backlight switches off for no good reason

Zarro Boogs per Child bugtracker at laptop.org
Sat Aug 30 05:49:55 EDT 2008


#8006: joyride-2301:  backlight switches off for no good reason
-----------------------------------+----------------------------------------
   Reporter:  thomaswamm           |       Owner:  cjb                              
       Type:  defect               |      Status:  new                              
   Priority:  high                 |   Milestone:  8.2.0 (was Update.2)             
  Component:  power manager (OHM)  |     Version:  Development build as of this date
 Resolution:                       |    Keywords:  power_manager blocks?:8.2        
Next_action:  diagnose             |    Verified:  0                                
  Blockedby:                       |    Blocking:                                   
-----------------------------------+----------------------------------------

Comment(by thomaswamm):

 Here is a copy of my Terminal activity via copy/paste:
 {{{
 Dup dor a'az Mubster!              \_____/    Bonjour, enfants du monde!
  Ciao, bambini di tutto il mondo!   || o ||    ¡Hola, chicos del mundo!
  Hallo, Kinder der Welt!            |._X_.|    Hallo, kinderen van de
 wereld!
  Hello, children of the world!     //_=_=_\\   Olá, crianças do mundo!

 [olpc at xo-0D-54-FD ~]$ sudo /etc/init.d/ohmd stop
 Stopping Open Hardware Manager:                            [  OK  ]
 [olpc at xo-0D-54-FD ~]$ rm *.out
 rm: remove write-protected regular file `nohup.out'? y
 [olpc at xo-0D-54-FD ~]$ sudo nohup ohmd --no-daemon --verbose &
 [1] 2031
 [olpc at xo-0D-54-FD ~]$ nohup: ignoring input and appending output to
 `nohup.out'

 [olpc at xo-0D-54-FD ~]$ ps -a
  PID TTY          TIME CMD
 2031 pts/0    00:00:00 su
 2042 pts/0    00:00:00 ohmd
 2045 pts/0    00:00:00 ps
 [olpc at xo-0D-54-FD ~]$ xset dpms 120 180 240
 [olpc at xo-0D-54-FD ~]$ ll *.out
 -rw------- 1 root root 119148 2008-08-30 09:27 nohup.out
 [olpc at xo-0D-54-FD ~]$ ll *.out
 -rw------- 1 root root 170331 2008-08-30 09:34 nohup.out
 [olpc at xo-0D-54-FD ~]$ ll *.out
 -rw------- 1 root root 170538 2008-08-30 09:36 nohup.out
 [olpc at xo-0D-54-FD ~]$
 [olpc at xo-0D-54-FD ~]$
 [olpc at xo-0D-54-FD ~]$
 [olpc at xo-0D-54-FD ~]$
 [olpc at xo-0D-54-FD ~]$
 [olpc at xo-0D-54-FD ~]$ ps -a
  PID TTY          TIME CMD
 2031 pts/0    00:00:00 su
 2042 pts/0    00:00:01 ohmd
 2157 pts/0    00:00:00 ps
 [olpc at xo-0D-54-FD ~]$
 [olpc at xo-0D-54-FD ~]$
 [olpc at xo-0D-54-FD ~]$
 [olpc at xo-0D-54-FD ~]$
 [olpc at xo-0D-54-FD ~]$
 [olpc at xo-0D-54-FD ~]$
 [olpc at xo-0D-54-FD ~]$
 [olpc at xo-0D-54-FD ~]$ sudo /etc/init.d/ohmd stop
 Stopping Open Hardware Manager:                            [  OK  ]
 [1]+  Done                    sudo nohup ohmd --no-daemon --verbose
 [olpc at xo-0D-54-FD ~]$
 [olpc at xo-0D-54-FD ~]$ ps -a
  PID TTY          TIME CMD
 2192 pts/0    00:00:00 ps
 [olpc at xo-0D-54-FD ~]$ ll *.out
 -rw------- 1 root root 210582 2008-08-30 09:36 nohup.out
 [olpc at xo-0D-54-FD ~]$
 [olpc at xo-0D-54-FD ~]$
 [olpc at xo-0D-54-FD ~]$ ll *.out
 -rw------- 1 root root 210582 2008-08-30 09:36 nohup.out
 [olpc at xo-0D-54-FD ~]$
 [olpc at xo-0D-54-FD ~]$ ll *.out
 -rw------- 1 root root 210582 2008-08-30 09:36 nohup.out
 [olpc at xo-0D-54-FD ~]$
 [olpc at xo-0D-54-FD ~]$
 }}}
 Note that I had switched back and forth from Browse and done other things
 while the above transcript was collected.

 Towards the end of the logging, my battery LED went RED, so I plugged in
 the power adapter, and saw the backlight brightness change (as observed
 before).

-- 
Ticket URL: <http://dev.laptop.org/ticket/8006#comment:24>
One Laptop Per Child <http://laptop.org/>
OLPC bug tracking system


More information about the Bugs mailing list