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evster
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Location: Waterloo, Ontario, Canada

PostPosted: Thu Jul 21, 2005 11:05 pm    Post subject: Cannot get framebuffer working [solved] Reply with quote

Hi,

I am trying to set up a framebuffer and I just can't get it working. I have compiled my kernel with vesafb support. And I used splash_geninitramfs and followed the steps on http://dev.gentoo.org/~spock/projects/gensplash/archive/gensplash-in-5-easy-steps.txt .

This is what I have in my menu.lst

Code:

default 0
timeout 5
splashimage=(hd0,1)/grub/splash.xpm.gz

title=Gentoo Linux 2.6.12-r6
root(hd0,1)
kernel /kernel-2.6.12-gentoo-r6 root=/dev/hdb4 video=vesafb:1024x768@85 splash=silent,theme:Emergence
initrd /boot/fbsplash


Does anyone see anything wrong with this?? Just let me know if you need any more information.

Thanks!
Evan


Last edited by evster on Wed Aug 10, 2005 3:32 pm; edited 1 time in total
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Stolz
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Joined: 19 Oct 2003
Posts: 2946
Location: Valencia, Spain

PostPosted: Thu Jul 21, 2005 11:31 pm    Post subject: Reply with quote

Since kernel-2.6.12 the FB config has changed a bit. You have to change your grub kernel line and rebuild your initrds. Read these posts:

http://forums.gentoo.org/viewtopic-t-351048-highlight-.html
http://forums.gentoo.org/viewtopic-t-357733-highlight-splashutils.html

Hope it helps.
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evster
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PostPosted: Thu Jul 21, 2005 11:56 pm    Post subject: Reply with quote

ok,

I followed those a bit closer and when I reboot I get this output...

Code:
Failed to open /dev/fb0 or /dev/fb0 for reading.
Can't open config file /etc/splash/emergence/0x0.cfg
Failed to load image (null).
Can't open /dev/fb0 or /dev/fb/0.


Any ideas??
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Stolz
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PostPosted: Fri Jul 22, 2005 12:01 am    Post subject: Reply with quote

Have you upgraded to splashutils-1.1.9.7 and rebuild your initrds?
Do you have a recent version of udev?
Could you please tell us your full grub kernel line?

emergence have been removed from the core splashutils package. You might want to emerge media-gfx/splash-themes-* to get it.

Also, you should read the wiki. It has been recently updated with the new way for installing Gensplash.
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evster
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PostPosted: Fri Jul 22, 2005 12:14 am    Post subject: Reply with quote

Quote:
Have you upgraded to splashutils-1.1.9.7 and rebuild your initrds?


I just emerged splashutils-1.1.9.7 today. I think I rebuilt my initrds, is that what running splash_geninitramfs does?

Quote:
Do you have a recent version of udev?


I am really new to this, i'm not really sure what udev is. So how would I check it?

Quote:
Could you please tell us your full grub kernel line?


I realized that emergence wasn't their, so I have changed it to Emergance which is there, but it still doesn't work.

Thanks!
Evan
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evster
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PostPosted: Sun Jul 24, 2005 6:44 pm    Post subject: Reply with quote

After much reading and testing things out I managed to get a framebuffer going. I still have not been able to get a boot splash working though.

I also tried using qingy, and I am getting an error with that which might have something to do with it. In the instructions for setting up qingy it says I need to run fbset. I don't have that command!?! What have I done wrong???

Thanks!
Evan
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jeremy whiting
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PostPosted: Tue Aug 02, 2005 10:58 pm    Post subject: Reply with quote

emerge fbset
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Deadog
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PostPosted: Thu Aug 04, 2005 2:36 am    Post subject: Reply with quote

I have the same problem.
I use a 2.6.12-nitro-r5 with genkernel (3.3.5)
udev is version 058 on my system (but genkernel use a 054)
splashutils 1.1.9.7 (recently re-emerge for the 2.6.12-nitro-r5 kernel)

my genkernel command line for generate the initramfs is :
Code:
genkernel --gensplash=default --lvm2 initrd


my lilo entry is :
Code:
image = /boot/kernel-genkernel-x86-2.6.12-nitro5
  root = /dev/ram0
  label = "Gentoo-R4N"
  read-only
  append = "init=/linuxrc real_root=/dev/hda7 splash=silent,theme:default video=vesafb:1024x768@60 CONSOLE=/dev/tty1 quiet dolvm2 udev"
  initrd = /boot/initramfs-genkernel-x86-2.6.12-nitro5


so, when my system is off, the content of /dev have no /dev/fb0 entry.
When adding one, the problem is steel here, and udev remove my /dev/fb0!
How the initramfs can access to /dev/fb0 at the early start ? :?:

I try fbset
first, on a working system (with no splash) :
Code:
dekarion / # fbset -i

mode "1280x1024-75"
    # D: 135.007 MHz, H: 79.981 kHz, V: 75.029 Hz
    geometry 1280 1024 1280 1024 32
    timings 7407 248 16 38 1 144 3
    hsync high
    vsync high
    rgba 8/16,8/8,8/0,8/24
endmode

Frame buffer device information:
    Name        : VESA VGA
    Address     : 0xd8000000
    Size        : 16777216
    Type        : PACKED PIXELS
    Visual      : TRUECOLOR
    XPanStep    : 0
    YPanStep    : 0
    YWrapStep   : 0
    LineLength  : 5120
    Accelerator : No


I adding this section to the non-existent /etc/fb.modes file of the other system :
Code:
mode "1280x1024-75"
    # D: 135.007 MHz, H: 79.981 kHz, V: 75.029 Hz
    geometry 1280 1024 1280 1024 32
    timings 7407 248 16 38 1 144 3
    hsync high
    vsync high
    # rgba 8/16,8/8,8/0,8/24
endmode

(rgba line is comment because of syntax error with fbset)

after booting on the other system, I try "fbset -fb /dev/fb0 1280x1024-75" but he insult me because /dev/fb0 does not exist.
I create/force it like that :
Code:
mknod -m 600 /dev/fb0 c 29 0

but with the same fbset command, fbset told me that it can't open /dev/fb0


on the working system I have a /proc/fb0 directory, not on the other system ...
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evster
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PostPosted: Thu Aug 04, 2005 3:47 am    Post subject: Reply with quote

Try adding vga=0x318 to your append line.

So it would look something like this:
Code:
image = /boot/kernel-genkernel-x86-2.6.12-nitro5
  root = /dev/ram0
  label = "Gentoo-R4N"
  read-only
  append = "init=/linuxrc real_root=/dev/hda7 splash=silent,theme:default video=vesafb:1024x768@60 vga=0x318 CONSOLE=/dev/tty1 quiet dolvm2 udev"
  initrd = /boot/initramfs-genkernel-x86-2.6.12-nitro5


This made it work for me.
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Deadog
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PostPosted: Thu Aug 04, 2005 12:39 pm    Post subject: Reply with quote

the vga option is for vesa, and I use vesa-tng ;)

without any video option (let the default mode), that don't work too :(

I will try to use vesa mode instead of vesa-tng ...
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Deadog
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PostPosted: Thu Aug 04, 2005 3:48 pm    Post subject: Reply with quote

I have solve the problem !

it's so stupid ...
VESA was in module :roll:

but I don't realy understand why the initramfs didn't load it :?:
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