Does the audio light on the CM 300 blink at all? If there is MIDI activity should flash or at least be lit.

Have you connected headphones or speakers directly to the CM 300 and see if there is audio coming out of it to rule out an issue with audio mixing on the AWE64?

The red power light is on - but not blinking.

I'll try some headphones and/or speakers directly. Thanks for the tip!

Simmerhead wrote on 2022-09-24, 19:41:

The red power light is on - but not blinking.

I'll try some headphones and/or speakers directly. Thanks for the tip!

The red power light will always just be lit up when it's power on.

The amber light to the left will flash when it received it sees MIDI data. Since it's not flashing it's not seeing anything to play.

Try connecting the other MIDI DIN to the MIDI IN on the module if your Gameport to MIDI cable has both an OUT and IN. Sometimes they are marked weird, the Roland UM-ONE USB MIDI cable has them labeled as "Connect to MIDI IN/OUT" so the IN goes to the IN on the module rather than one would think OUT to IN.

SScorpio wrote on 2022-09-24, 19:56:

The red power light will always just be lit up when it's power on. […]
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Simmerhead wrote on 2022-09-24, 19:41:

The red power light is on - but not blinking.

I'll try some headphones and/or speakers directly. Thanks for the tip!

The red power light will always just be lit up when it's power on.

The amber light to the left will flash when it received it sees MIDI data. Since it's not flashing it's not seeing anything to play.

Try connecting the other MIDI DIN to the MIDI IN on the module if your Gameport to MIDI cable has both an OUT and IN. Sometimes they are marked weird, the Roland UM-ONE USB MIDI cable has them labeled as "Connect to MIDI IN/OUT" so the IN goes to the IN on the module rather than one would think OUT to IN.

Thanks again!

I've gotten one step further! Installed Civ and chose Roland sound. Now it works. The yellow light is blinking and I have sound through the speakers (via the AWE64 line out) and headphones directly via the CM-300.

However, I still can't get i.e. the midi-player in Windows 3.11 to use the Roland. It plays only from the AWE64, even though everything is connected correctly to the AWE64!?

I don't have a readily available Win3.11 install, but going off the ol' memory in the control panel there should be either a MIDI option, or it's limited under multimedia. One of the options should be the MIDI mapper which lets you choose the MIDI Output port to use.

Do you see anything like that?