Re: [Mactel-linux-users] uvesafb on MacBook?

[Justin P. M. <jus...@gm...>]

mike dentifrice wrote:
> Hi there,
>
> I've become quite fed up with the terrible console resolution I get on
> my MacBook2,1 and thought it was time to give framebuffer drivers
> another go.
>
> Looks like uvesafb [1] is the standard nowadays, but I haven't been able
> to make it work. I have installed the daemon part (v86d, from the Debian
> package), and tried to modprobe the module with various resolutions as
> an option, such as:
>
>    modprobe uvesafb mode_option=1280x800
>
> Unfortunately, I always get the following output, and no success:
>
>    uvesafb: Intel Corporation, Intel(r) 82945GM Chipset Family Graphics
>   	   Controller, Hardware Version 0.0, OEM: Intel(r) 82945GM Chipset
> 	   Family Graphics Chip Accelerated VGA BIOS, VBE v3.0
>    uvesafb: VBIOS/hardware supports DDC2 transfers
>    uvesafb: monitor limits: vf = 60 Hz, hf = 49 kHz, clk = 71 MHz
>    uvesafb: scrolling: redraw
>    uvesafb: abort, cannot ioremap 0x600000 bytes of video memory at 0x40000000
>    uvesafb: probe of uvesafb.0 failed with error -5
>
> Can anyone share a resolution that works, or give hints as to which FB
> driver to try and how?
>
> Thanks,
>
> [1] http://dev.gentoo.org/~spock/projects/uvesafb/
>
>    
Not  sure, but I think I'm using fbcon, anyways
on the imac was using vga=893 macbook(if I can remember)
vga=790.
Now keep in mind these options are obsolete with grub2
you have to use the new gfxpayload option.
at first seemed difficult but really not that bad.
firstly you need to create the *.pf2 for the fonts
http://grub.enbug.org/gfxterm
  then  tell grub where it is.
  i.g. cat grub.cfg


  ### BEGIN /etc/grub.d/00_header ###
set default=0
set timeout=5
### END /etc/grub.d/00_header ###
# below is how you setup the font for the screen during boot.
# do a google search plenty of info
insmod font
loadfont (hd0,3)/pathtowhatever*.pf2youhave/unifont.pf2
insmod gfxterm
insmod vbe
set gfxmode=1900x1200x256  #still uncertain on how to set this
terminal_output gfxterm

### BEGIN /etc/grub.d/10_linux ###
menuentry "GNU/Linux, Linux 2.6.31-rc8" {
         insmod ext2
         set root=(hd0,3)
         set gfxpayload=keep  #important so once you load this kernel 
the screen has good font
         search --no-floppy --fs-uuid --set 
43dc53e1-195c-4221-afc1-991e762848f1
         linux   /boot/vmlinuz-2.6.31-rc8 root=/dev/sda3 ro audit=1 
selinux=1 enforcing=0
}

remember that this is fairly new so hopefully your screen size is supported.

Justin P. Mattock