Auto-Boot stopped working

[XanderW]

I seem to have encountered a weird problem regarding the auto-boot feature. Auto-boot always used to work for me (with the 3 second delay so I can switch to windows if I want), up until yesterday when I turned off CSM in the BIOS in order to get clover to work at native resolution (2560x1440). No clover doesn't autoboot anything anymore. This is the boot section in my config.plist:

    <key>Boot</key>
    <dict>
        <key>Arguments</key>
        <string>dart=0</string>
        <key>Debug</key>
        <false/>
        <key>DefaultVolume</key>
        <string>Sierra</string>
        <key>Legacy</key>
        <string>PBR</string>
        <key>Secure</key>
        <false/>
        <key>Timeout</key>
        <integer>3</integer>
        <key>XMPDetection</key>
        <false/>
    </dict>

Any ideas on how to solve this? I don't want to go back to turning CSM on, because I would like native resolution.

Thanks in advance!

 

[XanderW]

Funny thing: when I plug in my backup drive an extra boot option occurs (the backup drive) and then suddenly the Auto-Boot functionality does auto boot the right drive. What could be the underlying issue here?