Prompt Digitizer broken, screen ok. Help me set up ADB for input

Dropped my phone this morning (~80cm) & screen cracked; now I've got no response from touchscreen at all.

LG Optimus G
CWM 6.0.4.7
Cyanogenmod 11
all data backed up

I can access ADB shell when it's in recovery mode but once booted up it just connects as MTP device and ADB doesn't see it (nor does fastboot). I've tried an OTG cable with mouse, no luck there. I have a bluetooth mouse but no way to pair it!

Do I just have the wrong driver in windows? Device manager says "LGE Android MTP Device" because I had (at some point earlier) installed the LG usb drivers and recovery tool.
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