Is it possible to run XQuartz in 16-bit color mode on macOS High Sierra? I tried the suggestions in this question but they didn't seem to work for 16-bit color.
First, I tried setting the color depth in XQuartz preferences:
When I restarted X and checked the color depth using
xwininfo -root it showed
Next, I tried specifying the color depth inline when starting XQuartz:
xquartz -depth 16
This caused XQuartz to crash with the error:
Xquartz: start_x11_server: (ipc/mig) server died
Last, I tried setting the color depth with
defaults write org.macosforge.xquartz.X11 "depth" -int 16
This also resulted in a color depth of 24.
However, setting the color mode to 8-bit using any of the above techniques worked just fine. XQuartz started up, and
xwininfo -root showed
Any ideas what I might be doing wrong? I'm running macOS High Sierra and XQuartz 2.7.11 (xorg-server 1.18.4).
Edit: I tried with a value of 15, but
xwininfo is still reporting a color depth of 24.