The channel meter, and the meter on the preamp page are is always in the digital signal path (and thus affected by trim) whether you opt for ‘show preamp’ or ‘show trim’ on surface. That choice is simply for what the channel strip pot is connected to.

Leon A&H UK. Please do not adjust your set; normal service will be resumed as soon as possible!

I too have found the lack of a dedicated meter for the Socket Preamp to be troublesome. Our GLD is used by several different worship teams and I have discovered more than once the Socket Preamp overdriven/ distorting with NO Peaking being indicated by the digital Trim meter.

I have found the only way to observe both the Socket Preamp and Digital trim metering is as follows:
On the Processing screen select the “Preamp” tab
Select “Preamp On Surface” option
Press and hold the green SEL button on the Preamp Channel Strip (located near the Preamp encoder, upper left side of console). The LED Main/PAFL meter will indicate the (Analog) Preamp level and the LCD meter in the “Trim” section of the Preamp page will indicate the (Digital) trimmed level.

Leon BigEars,
Perhaps with the next Firmware update, an LCD meter could be added to the Socket Preamp section of the Preamp page indicating the (Analog) Socket Preamp level.
Regards

How did I find what?

Attended an Allen&Heath sponsored training seminar for the DLG console before purchasing, where we were told the SEL button allows the user to listen/monitor the signal at the SELected point in the signal chain. When I was trying to determine the source of the distortion I pressed the Preamp SEL button and discovered the LED PAFL meters were peaking severely while the LCD digital trim meter showed no such condition. Very disappointing!
Hope this translates to the iLive.
Dave