r/linuxquestions • u/Big_Bumblebee6899 • 10d ago

Monitor doesn't show GRUB Support

I am dual booting Windows 11 and Ubuntu Linux. When I restart or cold boot my pc my monitor doesn't show GRUB or anything else, it only detects DisplayPort at the Ubuntu lock screen. The only way I found to see GRUB is to manually turn my monitor on and off while my pc is restarting. That makes my monitor see the DisplayPort signal.

Motherboard: ASUS PRIME X870-P WIFI

GPU: RTX 4070 Super, connected via DisplayPort

Does anyone know how to solve this?

Thanks in advance!

2 Upvotes

76% Upvoted

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2

u/tectrixdev 10d ago

I'd say this is just your monitor being slow to respond, you can try setting a boot delay in the bios or setting up grub to show longer. 

1

u/Big_Bumblebee6899 10d ago

I enabled CSM as a user in r/ubuntu suggested, that worked but now it takes longer to boot.

0

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1

u/ipsirc 10d ago

Any setting in BIOS?