Toshiba Grub Screen Black
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Toshiba Grub Screen Black
Hello,
I have a TOSHIBA Satellite P770-116 with Windows 7
I have installed mint 17 cinnamon 32 bits on an internal disk sda1
I have installed mint after Windows
Grub2 is also installed
Options are to boot on windows by default.
I don't succeed to see the GRUB MENU on the screen at boot time, everything is black
I must select by the arrow the second choice (mint) after a certain time and two disk access to boot mint in a blind way.
I have tried various configuration with grub-customizer, but my screen
is allways black.
This situation prevents to type SHIFT to see the menus....
I don't succeed either to type F12 to choose the disk for rebooting for example a rescue disk.
Can you help?
Thanks
I have a TOSHIBA Satellite P770-116 with Windows 7
I have installed mint 17 cinnamon 32 bits on an internal disk sda1
I have installed mint after Windows
Grub2 is also installed
Options are to boot on windows by default.
I don't succeed to see the GRUB MENU on the screen at boot time, everything is black
I must select by the arrow the second choice (mint) after a certain time and two disk access to boot mint in a blind way.
I have tried various configuration with grub-customizer, but my screen
is allways black.
This situation prevents to type SHIFT to see the menus....
I don't succeed either to type F12 to choose the disk for rebooting for example a rescue disk.
Can you help?
Thanks
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
Re: Toshiba Grub Screen Black
Remove # from the beginning of the next line about /etc/default/grub file and update-grub after editing.
Code: Select all
GRUB_GFXMODE=640x480
Code: Select all
sudo update-grub
Re: Toshiba Grub Screen Black
Hello,
Thanks for your iput
Unfortunatlly, this does not work
Thank you
Thanks for your iput
Unfortunatlly, this does not work
Thank you
Re: Toshiba Grub Screen Black
One choice is to install Legacy Grub, but the you need to add windows by hand to the /boot/grub/menu.lst file. An example about installation.
... no you have to add windows to the list and uncomment/remove hidden timeout entry
An example about windows entry for /dev/sda1
You can also use VGA codes on the kernel line
Code: Select all
sudo apt-get install grub
sudo update-grub ## answer Y when asking about menu.lst
sudo grub-install /dev/sda ## I suppose that hard drive is sda
sudo nano /boot /grub/menu.lst
An example about windows entry for /dev/sda1
Code: Select all
title Windows disk1/partition1
rootnoverify (hd0,0)
chainloader +1
boot
Code: Select all
VGA Resolution Codes for GRUB & Lilo
--- Depth --
Colors bits 640x480 800×600 1024×768 1152×864 1280×1024 1600×1200
256 8 vga=769 vga=771 vga=773 vga=353 vga=775 vga=796
32000 ? vga=784 vga=787 vga=790 vga= ? vga=793 vga= ?
65000 16 vga=785 vga=788 vga=791 vga=355 vga=794 vga=798
16.7M 24 vga=786 vga=789 vga=792 vga=795 vga=799
Re: Toshiba Grub Screen Black
Hello,
I have found my probem.
I have a screen connected with an HDMI cable.
When I put the screen on or off with the cable, my boot screen is black.
When I REMOVE the cable (unplug), I have a normal boot screen.
Is there something to do to keep the cable ?
Thanks
I have found my probem.
I have a screen connected with an HDMI cable.
When I put the screen on or off with the cable, my boot screen is black.
When I REMOVE the cable (unplug), I have a normal boot screen.
Is there something to do to keep the cable ?
Thanks
- JOPETA
- Level 17
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- Joined: Thu Nov 20, 2014 6:10 am
- Location: En un lugar de cuyo nombre no quiero acordarme
Re: Toshiba Grub Screen Black
When you log-in, connect the external display. Then, you have to define the roll of both displays ( Menú>Preferences>Display), set fixed one (laptop) as primary by clicking the upper switch and check mirrowing if you want.
In other hand, there is a funtion key (in the upper row of the keyboard to use with Fn key) you can press to alternate or keep both enables and must works on booting.
In other hand, there is a funtion key (in the upper row of the keyboard to use with Fn key) you can press to alternate or keep both enables and must works on booting.
Ni cola de león ni cabeza de ratón, prefiero ser diente de ajo.(Javier Krahe)
Re: Toshiba Grub Screen Black
One choice is to set the primary output.sphinxmoro wrote:Hello,
I have found my probem.
I have a screen connected with an HDMI cable.
When I put the screen on or off with the cable, my boot screen is black.
When I REMOVE the cable (unplug), I have a normal boot screen.
Is there something to do to keep the cable ?
Thanks
http://puolanka.info/distrowatch/how-to ... y-monitor/
- JOPETA
- Level 17
- Posts: 7762
- Joined: Thu Nov 20, 2014 6:10 am
- Location: En un lugar de cuyo nombre no quiero acordarme
Re: Toshiba Grub Screen Black
¿Isn't it the same thing but in codes? Please, put in clear for me (i´m so noob).
Ni cola de león ni cabeza de ratón, prefiero ser diente de ajo.(Javier Krahe)
Re: Toshiba Grub Screen Black
Not exactly, with the startup script, you do not need to push Fn button. ..JOPETA wrote:¿Isn't it the same thing but in codes? Please, put in clear for me (i´m so noob).
- JOPETA
- Level 17
- Posts: 7762
- Joined: Thu Nov 20, 2014 6:10 am
- Location: En un lugar de cuyo nombre no quiero acordarme
Re: Toshiba Grub Screen Black
So you have 2 or 3 seconds to scratch your nose or take a sip. OK.
Ni cola de león ni cabeza de ratón, prefiero ser diente de ajo.(Javier Krahe)