bugGNU GRUB - Bugs: bug #59720, Grub menu not showing during...


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bug #59720: Grub menu not showing during startup

Submitted by:  Martin <chrysopras>
Submitted on:  Fri 18 Dec 2020 12:20:12 PM UTC  
Votes:  10  
Category:  Booting Severity:  Major
Priority:  5 - Normal Item Group:  Software Error
Status:  None Privacy:  Public
Assigned to:  None Originator Name:  Martin
Open/Closed:  Open Release: 
Release:  other Reproducibility:  Every Time
Planned Release:  None

Mon 21 Dec 2020 10:18:46 AM UTC, comment #1: 

Dear all,

I had the same problem.

I am running a dual boot with Windows 10 (which was installed first) and Garuda. Asus Tuf 310 + i5 + Radeon RX 580 on 4k monitor.

Shutting down or restarting from windows worked perfectly and took me to grub menu. Restarting from garuda brought me to a black screen (didn't even show my motherboard logo) that glitched briefly. Then Garuda loaded normally after a few seconds.

In my case, "videoinfo" returned the list of possible resolutions but it was set to auto. running "videotest" opened a colorful test screen but rebooted in 3 seconds.

I fixed the issue by opening Garuda and setting GRUB_GFXMODE=1230x1024 (the highest resolution suggested in "videoinfo") and updating grub. Then, the splash screen and the grub menu loaded perfectly.

I found that other users are also having this issue, also in cases of 4k monitors.

Dell <delldiedie>
Fri 18 Dec 2020 12:20:12 PM UTC, original submission:  

Initially in grub2 the configuration is set to GRUB_GFXMODE=auto. On several systems grub seems to be unable to autodetect the proper resolution.
(In grub console "videoinfo" returned no (!) output on my system, a thinkpad x201) After altering to GRUB_GFXMODE=1280x800 which is the known resolution of my screen, my lovely bootmenu was visible again.

Formerly grub's default configuration seemed to be GRUB_TERMINAL= console, which now has been commented out. That leads to a nice output (as grub themes are supported) if it works. If not, it leads into the dark...

As most users are not encountering problems with graphic mode it would be nice for the few (?) others to provide a console fallback mode, if the autodetect fails.

Martin <chrysopras>


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