Resolution issues with IPKVM

[krmiller]

I have several Sun Ultra 20 and 40 systems that have Nvidia Quadro cards in them. I build the systems using jumpstart and after the jumpstart I automatically install the nvidia drivers. When the systems were directly connected to a monitor and keyboard we built them without any issues. We were able to get the require resoltuion of 1280x1024 easily and could adjust it with nvidia-settings. After these systems were built we connected them to an Avocent DSR8030 IPKVM and they continued to work great at the high resolution.

Recently we performed a new Jumpstart while the systems were connected to the IPKVM but at the end of the jumpstart we were only able use a resolution of 640x480. When I ran nvidia-settings there were no options for other resolutions. I next turned to the nvidia readme and adjusted some settings with no luck.

A few of the things that I changed:
In the "Screen" section
Option "UseEDID" "False"
Option "IgnoreDisplayDevices" "DFP, TV"

Remove all "display" subsections except for
SubSection "Display
Viewport 0 0
Depth 24
Modes "1280x1024"
EndSubSection

Any ideas would be much appreciated.

[PCitarella]

Here is a possible approach to your Avocent DSR8030 problem...

Update DSR firmware. http://www.avocent.com/support/default.aspx?id=6314

Possibly reboot the Sun server. It seems the Nvidia card is not properly reading the DDC string from the DSR.

Hope it helps.
-PC

[krmiller]

Thanks for responding.

The DSR8030 was already updated with the latest firmware (3.07.00.13).

Also I have rebooted the system many times.