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== More tests and measurements == I did a lot of software tests: * Entering test mode gives a blank screen * Datasheet seems wrong: "MBD_MSR_DIAG[18:16] = 101h" should be "MSR_DIAG_VP[18:16] = 0b101" *Still, DAC test mode doesn't seem to work for me * DAC status registers always say the DAC is below 0.35V * VGA to HDMI gives the same weird signal on a monitor * One time VGA output was proper white * Another time VGA output was blue * Another time it didn't show up at all I did the following measurements: * The DVREF shunt looks okay and produces the correct voltage * The DVREF shunt has a 12nF cap in parallel * The DVREF shunt has 13k to the 3V3 rail * The DRSET resistor is 1.21K to GND * The VGA resistors seem fine and correct values *When external DVREF is used, the shunt drops to 800mV, the rail somehow drops to 960mV I reflowed some solder pins that looked a little lacking to me. I managed to break the second Ethernet chip doing this. Fixing it would require running wires for some PCI lines probably. I put nail polish on the exposed pins to protect from the elements. I put some contact cleaner on the VGA connector pins and that didn't help.
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