Grub2 and framebuffer

[Jack450]

Wow that was quick, don't go anymore I'm going to test this XD

[Jack450]

Damn, it didn't change anything I'm still getting the same result.

[Jack450]

Can anyone help me with this problem too I've follow the steps to getting the Virtual Console to change resolution but I'm still getting the same low resolution. My grub changed to 1440x900 but not the Console when I press Ctrl+Alt+F2, does anyone know what I'm doing wrong?

Look for errors like I did

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grep -n GFX /etc/default/grub

grep -n GFX /etc/grub.d/00_header

You should see something like

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16:GRUB_GFXMODE=1024x768x32
17:GRUB_GFXPAYLOAD=1024x768x32

and

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38:if [ "x${GRUB_GFXMODE}" = "x" ] ; then GRUB_GFXMODE=1024x768x32 ; fi
39:if [ "x${GRUB_GFXPAYLOAD}" = "x" ] ; then GRUB_GFXPAYLOAD=1024x768x32 ; fi
81:  set gfxmode=${GRUB_GFXMODE}
82:  set gfxpayload=${GRUB_GFXPAYLOAD}

only "1440x900x32" in your case.

Hmm When I type "grep -n GFX /etc/grub.d/00_header" I'm missing "82: set gfxpayload=${GRUB_GFXPAYLOAD}".

[dbbolton]

Hmm When I type "grep -n GFX /etc/grub.d/00_header" I'm missing "82: set gfxpayload=${GRUB_GFXPAYLOAD}".

Then that's your problem.

then in /etc/grub.d/00_header find the line:

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if [ "x${GRUB_GFXMODE}" = "x" ] ; then GRUB_GFXMODE=1440x900x32 ; fi

then insert

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if [ "x${GRUB_GFXPAYLOAD}" = "x" ] ; then GRUB_GFXPAYLOAD=1440X900x32 ; fi

below it.
In the same file, but farther down the page, find the line:

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set gfxmode=${GRUB_GFXMODE}

insert below that line:

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set gfxpayload=${GRUB_GFXPAYLOAD}

[Jack450]

Hmm When I type "grep -n GFX /etc/grub.d/00_header" I'm missing "82: set gfxpayload=${GRUB_GFXPAYLOAD}".

Then that's your problem.

then in /etc/grub.d/00_header find the line:

Code: Select all

if [ "x${GRUB_GFXMODE}" = "x" ] ; then GRUB_GFXMODE=1440x900x32 ; fi

then insert

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if [ "x${GRUB_GFXPAYLOAD}" = "x" ] ; then GRUB_GFXPAYLOAD=1440X900x32 ; fi

below it.
In the same file, but farther down the page, find the line:

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set gfxmode=${GRUB_GFXMODE}

insert below that line:

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set gfxpayload=${GRUB_GFXPAYLOAD}

I switched it out but it didn't work either.

[dbbolton]

I switched it out but it didn't work either.

You don't need to switch anything. You need to add the line.

[Jack450]

I switched it out but it didn't work either.

You don't need to switch anything. You need to add the line.

It was first "set gfxpayload=${GRUB_GFXPAYLOAD}"
but I followed what Raffles10 said and switched it to
"set gfxpayload=keep" either way both do not change the resolution on the Virtual Console.

[un1xer]

Hi, sorry for waking this old thread but it seemed there was no point in starting a new one.
So, unfortunately none of the above works for me, I used to set my FB resolution by editing
/boo/grub/grub.cfg with:

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set gfxpayload=1680x1050x32

now it does't seem to work any more.
The changelog of the latest update v1.98-1 of grub-pc says that it now has support GRUB_GFXPAYLOAD_LINUX, how is one supposed to use this?
Thanks for any help you can provide on this.

[llivv]

.

[un1xer]

All I get is a black screen, after gdm starts and doing Ctrl+Alt+F1 gets me a also a black screen, sometimes there is the Debian boot loader logo all distorted.
So, X starts fine, is just the frame buffer that gets unusable.
If I set al to defaults I get the normal 640x480 frame buffer.

[llivv]

.

[un1xer]

Are you using them your self?
My graphics card is an nvidia 9300gs on a laptop.

[llivv]

.

[m_l]

After a recent update to grub-pc [1.98-1] you can set the framebuffer resolution with the following option in:

/etc/default/grub:

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GRUB_GFXPAYLOAD_LINUX=tty/console-resolution

Just use the resolution you will like to use of course, for example:

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 # Set the framebuffer resolution; used on tty/console [text consoles]
GRUB_GFXPAYLOAD_LINUX=1920x1200

After editing, make sure to create a new /boot/grub/grub.cfg to use the option above:

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# update-grub2

So if you are using this version or newer, the previous steps are not needed any more. Just do the above.

[m_l]

When I used the nvidia driver, installed using the wiki instructions. I had to add the following to /etc/modules for framebuffer to work right:

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nvidiafb

I now use the nv driver and the above is still there, not sure if it's needed with nv. But I still have nvidiafb there and all works fine.

[bugsbunny]

When I used the nvidia driver, installed using the wiki instructions. I had to add the following to /etc/modules for framebuffer to work right:

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nvidiafb

I now use the nv driver and the above is still there, not sure if it's needed with nv. But I still have nvidiafb there and all works fine.

I don't know other details of what you were doing - but this is just wrong. nvidiafb is incompatible with the nvidia driver so one or the other wasn't loading.

[m_l]

When I used the nvidia driver, installed using the wiki instructions. I had to add the following to /etc/modules for framebuffer to work right:

Code: Select all

nvidiafb

I now use the nv driver and the above is still there, not sure if it's needed with nv. But I still have nvidiafb there and all works fine.

I don't know other details of what you were doing - but this is just wrong. nvidiafb is incompatible with the nvidia driver so one or the other wasn't loading.

I did nothing special just followed the wiki on using nvidia and was working fine. It just worked for my system using nvidiafb. Don't use nvidia driver anymore so I can't say what was the cause. Just reporting what worked for me.

[llivv]

.

[un1xer]

Yes I'm using them.
But I have older intel desktop hardware and even older intel laptop hardware....
So I'm only able to offer hints as to what might be going on with your nvidia setup...especially if you're using the nvidia kernel...
And updates are coming so fast that what I posted yesterday, might not be relevant today...
or for your hardware, as that data trickles in....

Well, turns out that my self compiled kernel was the culprit.
Just installed 2.6.23-3-amd64 Debian stock kernel and using

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GRUB_GFXPAYLOAD_LINUX=1680x1050

on /etc/default/grub, my tty frame buffer works as expected.

Thank you all for your help.

[Raffles10]

Yes I'm using them.
But I have older intel desktop hardware and even older intel laptop hardware....
So I'm only able to offer hints as to what might be going on with your nvidia setup...especially if you're using the nvidia kernel...
And updates are coming so fast that what I posted yesterday, might not be relevant today...
or for your hardware, as that data trickles in....

Well, turns out that my self compiled kernel was the culprit.
Just installed 2.6.23-3-amd64 Debian stock kernel and using

Code: Select all

GRUB_GFXPAYLOAD_LINUX=1680x1050

on /etc/default/grub, my tty frame buffer works as expected.

Thank you all for your help.

This doesn't work for me. Since the recent upgrade to 2.6.32.3-amd64 the framebuffer has been broken, I can't set anything except the default. The old method of setting it in /etc/grub.d/00_header & /etc/defaults/grub just leaves me with a blank screen, any workarounds would be appreciated. This is a very annoying issue.