VGA: Difference between revisions
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(New page: John Watlington said: OK. Absolutely no guarantees here --- the last time I tried to get a VGA output from Linux, it was broken. But as was pointed out on IRC, if your monitor has a...) |
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Revision as of 18:37, 17 September 2009
John Watlington said:
OK. Absolutely no guarantees here --- the last time I tried to get a VGA output from Linux, it was broken. But as was pointed out on IRC, if your monitor has a wide enough lock range this might work on production machines (we fixed a problem between B2 and B3 that was also causing problems.)
Components that were depopulated on C2 (MP machines) needed to support VGA output are:
U2, U3: 74AHCT1G125GW (sync drivers) C152: 0.1 uF R1, R2, R3: 75 ohm
To support the VGA I2C link (UART 2 on the CS5536 southbridge): R122, R123: 10K Q7, Q8: 2N7002 R115, R116: 10K D6: CH501H-40PT (just about any schottky diode should do, this is inline in the +5V supplied to the monitor)
Good luck finding that VGA connector, I don't have a part number for it. The pinout is attached. The signal/pin mapping is: Red - 1 Green - 2 Blue - 3 NC - 4,11 GND - 5,6,7,8,10 VSYNC - 14 HSYNC - 13 EDID_DATA - 12 EDID_CLK - 15