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Re: Grub hangs if no key is pressed

From: Jürgen Bausa
Subject: Re: Grub hangs if no key is pressed
Date: Thu, 28 Dec 2017 20:06:41 +0100
User-agent: KMail/5.2.3 (Linux/4.9.0-3-amd64; KDE/5.28.0; x86_64; ; )

Some additional information and a workaround I found:

Grub is extremely slow. When I press a key, it takes more than 2 seconds 
before I see the result on the screen. Another information that might be 
important is that the Laptop has a high resolution (1920 x 1080) and grub 
makes use of this.

The workaround I found is to either use a textual grub screen           


or to use a fixed and lower resolution like 


Setting either a textual screen or the fixed resolution solves the problem: 
grub is more responsive and starting the default kernel via timeout works.

As this is only a workaround and grub should work without it, I am still 
interested in a solution.



Am Mittwoch, 27. Dezember 2017, 22:22:16 CET schrieben Sie:
> I have a Xiaomi Air 12 with deiban stretch (amd64) installed. Grub
> (2.02~beta3-5) works in principle but I found out, that it hangs very often,
> if no key is pressed (timeout for selecting the boot option).
> In this case the default option is correctly selected. Then, the screen is
> cleared, the name of the selected kernel is displayed and the message
> "loading initial ram disk". Then the screen gets black and nothing happens
> anymore. It seems that the system is never started (nothing is written to
> the logs).
> If I select the default boot option by pressing <Enter> on the first grub
> screen, everything works fine and the system boots up normally.
> I have no idea how to debug this. Is there a debug option for grub that
> enables some output on the screen?
> Any other hints?
> Regards,
> Jürgen

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