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ddccontrol ioctl error

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Nov 4th, 2013
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  1. 13:55:33 dbz@dbzix ~ $ ddccontrol -p
  2. ddccontrol version 0.4.2
  3. Copyright 2004-2005 Oleg I. Vdovikin (oleg@cs.msu.su)
  4. Copyright 2004-2006 Nicolas Boichat (nicolas@boichat.ch)
  5. This program comes with ABSOLUTELY NO WARRANTY.
  6. You may redistribute copies of this program under the terms of the GNU General Public License.
  7.  
  8. Probing for available monitors..........
  9. Detected monitors :
  10. - Device: dev:/dev/i2c-1
  11. DDC/CI supported: Yes
  12. Monitor Name: VESA standard monitor
  13. Input type: Analog
  14. (Automatically selected)
  15. Reading EDID and initializing DDC/CI at bus dev:/dev/i2c-1...
  16. ioctl(): No such device or address
  17. ioctl returned -1
  18. ioctl(): No such device or address
  19. ioctl returned -1
  20. ioctl(): No such device or address
  21. ioctl returned -1
  22. ioctl(): No such device or address
  23. ioctl returned -1
  24.  
  25. DDC/CI at dev:/dev/i2c-1 is unusable (-1).
  26. If your graphics card need it, please check all the required kernel modules are loaded (i2c-dev, and your framebuffer driver).
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