HackingVGAforFun: Unterschied zwischen den Versionen

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== edid ==
== edid ==
[http://de.wikipedia.org/wiki/EDID EDID]
[http://de.wikipedia.org/wiki/EDID EDID]
I used EDID 1.3<br>
'''Windows'''
* standart timings
* established timings
* it looks like Windows XP doesnt like "prefered timings"
'''Linux'''
* The kernel module drm handels all the display stuff
* it accepts:
** established timings
** standart timings
** prefered timings


== build a fake monitor ==
== build a fake monitor ==

Version vom 26. Juli 2012, 17:30 Uhr

VGA

Video Grapbics Adapter

pinouts

VGA pinouts

edid

EDID I used EDID 1.3
Windows

  • standart timings
  • established timings
  • it looks like Windows XP doesnt like "prefered timings"

Linux

  • The kernel module drm handels all the display stuff
  • it accepts:
    • established timings
    • standart timings
    • prefered timings

build a fake monitor

  • Terminate the color lines with 75ohms
  • Attach a 24C02 serial eeprom to the specified pins (24c04 - 24c16 is possible to )

flash a new edid

  • Load the kernelmodule i2c-dev
  • Get i2c-tools
  • build the i2c-tools
  • Become root: Sudo -s
  • Add the tools folder to the PATH: PATH=$PATH:< ... >/i2c-tools/tools
  • Run i2cdump to find the correct BUSID (device at 0x50 and 0x51)
  • Flash new EDID with write-edid.sh
  • Note the input file is plain/text with hexvalues, spaces and newlines only

create custom edid

  • use Phoenix EDID Designer to create custom EDIDs
  • NOTE: the tool outputs .dat-files, that need to be editet by hand, it contains invalid symbols