This looks like on first start the nvidia drm device is missing.
1.start
[ 3.927] (II) xfree86: Adding drm device (/dev/dri/card0)
2.start
[ 197.329] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 197.329] (II) xfree86: Adding drm device (/dev/dri/card1)
Maybe some timing problem with driver loading, don’t know what to make of it right now.
Please create a new nvidia-bug-report.log, maybe something is visible in dmesg.