I am trying to understand the data in the Xorg.0.log file to try to solve a problem I am having with my screen resolution. I have an ATI Radeon X800 graphics card which has 3 ports on the back, one S-video and 2 DVI. The log file shows this: (II) RADEON(0): Bios Connector table: (II) RADEON(0): Port2: DDCType-3, DACType-1, TMDSType--1, ConnectorType-5 (II) RADEON(0): Port3: DDCType-1, DACType-1, TMDSType-0, ConnectorType-2 (II) RADEON(0): Port7: DDCType-2, DACType-0, TMDSType-1, ConnectorType-2 which kinda makes sense if the S-video connector is type 5 on port2 and the DVI connectors are type 2 on ports 3 and 7. Don't know why the other numbers are different though. My monitor is connected to one of the DVI ports. but the next lines in the log say: (II) RADEON(0): Output S-video using monitor section Monitor0 (II) RADEON(0): I2C bus "VGA_DDC" initialized. (II) RADEON(0): Output DVI-1 has no monitor section (II) RADEON(0): I2C bus "MONID" initialized. (II) RADEON(0): TMDS PLL from BIOS: 16500 b011c (II) RADEON(0): Output DVI-0 has no monitor section (II) RADEON(0): I2C bus "DVI_DDC" initialized. (II) RADEON(0): I2C bus "DVO" initialized. There is only one monitor section in my xorg.conf file so why does the un-connected S-video port claim it while the connected DVI (not sure which is connected) does not? Is there a way to edit the xorg.conf file to force the monitor section to be associated with the DVI port? Next in the log file is this block: (II) RADEON(0): I2C device "DVO:RADEON DVO Controller" registered at address 0x70. (II) RADEON(0): Port0: Monitor -- AUTO Connector -- STV DAC Type -- TVDAC/ExtDAC TMDS Type -- Unknown DDC Type -- VGA_DDC (II) RADEON(0): Port1: Monitor -- AUTO Connector -- DVI-I DAC Type -- TVDAC/ExtDAC TMDS Type -- Internal DDC Type -- MONID (II) RADEON(0): Port2: Monitor -- AUTO Connector -- DVI-I DAC Type -- Primary TMDS Type -- External DDC Type -- DVI_DDC Which looks like the BIOS data, but expanded into readable form - except the port numbers have changed from 2,3 and 7 to 0, 1 and 2. Am I right? I have many more questions but I'll save them before this e-mail gets too long if it isn't already. Thanks, Steve