Urgent help needed: GRUB doesn't show up on a 19" TFT

[hometoast]

I'll have to take a look at this when I get home to my linux box. try
"flying blind" when you boot and press 'c' to enter command line mode and
tree a few vbeset commands to see if you can't get it to change to something
useful. I didnt post this to the group because this is surely no real
answer.

On 11/7/05, Gábor Iglói <mdjake at gmail.com> wrote:
>
> Thank you for your quick answer. Let me stress out the core of the
> problem:
>
> The 19" TFT is a cheap 1913 (not 1912) ACER which is because it was
> 40$ cheaper than 1912 is not capable of displaying anything in 640x480
> - so text mode even. It is capable of displaying 800x600, 1024x768,
> 1280x1024 only. Anything that is in 640x480 - text screens like Breezy
> installation, even the beginning of Windows XP setup, virtual
> terminals 1-6 cannot be displayed, the monitor says MODE NOT
> SUPPORTED. I can see the BIOS screen fortunately because it is a
> non-standard 720 x something. I had to install OSes with the help of a
> separate monitor.
>
> Problem is that I can't see the GRUB menu at all - only MODE NOT
> SUPPORTED.
>
> Breezy can boot but I can't see the booting process (which is in
> 640x480 too). I can circumvent this by removing kernel parameter
> splash and replace it with vga=789. BUT I cannot see the GRUB
> dual-boot screen at all. Poor TFT.
>
> I have also downloaded a splash for GRUB from gnome-look.org<http://gnome-look.org>
> (ubuntu_grub_splash.xpm.gz) and I set up GRUB to use it but since it
> is 640x480 too I cannot see that either (only on the other CRT monitor
> - the previous monitor).
>
> I know however that GRUB can be displayed on this TFT too because the
> previous Linux distro's GRUB could bee seen on it (but only the
> graphical one, text mode also didn't worked there) - I think it was in
> 800x600, maybe 720 x something like BIOS.
>
> I do not know how to set up GRUB boot screen not to use 640x480.
>
> Here is my original menu.lst:
>
> # menu.lst - See: grub(8), info grub, update-grub(8)
> # grub-install(8), grub-floppy(8),
> # grub-md5-crypt, /usr/share/doc/grub
> # and /usr/share/doc/grub-doc/.
>
> ## default num
> # Set the default entry to the entry number NUM. Numbering starts from 0,
> and
> # the entry number 0 is the default if the command is not used.
> #
> # You can specify 'saved' instead of a number. In this case, the default
> entry
> # is the entry saved with the command 'savedefault'.
> default saved
>
> ## timeout sec
> # Set a timeout, in SEC seconds, before automatically booting the default
> entry
> # (normally the first entry defined).
> timeout 5
>
> ## hiddenmenu
> # Hides the menu by default (press ESC to see the menu)
> #hiddenmenu
>
> # Pretty colours
> color cyan/blue white/blue
>
> ## password ['--md5'] passwd
> # If used in the first section of a menu file, disable all interactive
> editing
> # control (menu entry editor and command-line) and entries protected by
> the
> # command 'lock'
> # e.g. password topsecret
> # password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
> # password topsecret
>
> #
> # examples
> #
> # title Windows 95/98/NT/2000
> # root (hd0,0)
> # makeactive
> # chainloader +1
> #
> # title Linux
> # root (hd0,1)
> # kernel /vmlinuz root=/dev/hda2 ro
> #
>
> #
> # Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST
>
> ### BEGIN AUTOMAGIC KERNELS LIST
> ## lines between the AUTOMAGIC KERNELS LIST markers will be modified
> ## by the debian update-grub script except for the default options below
>
> ## DO NOT UNCOMMENT THEM, Just edit them to your needs
>
> ## ## Start Default Options ##
> ## default kernel options
> ## default kernel options for automagic boot options
> ## If you want special options for specifiv kernels use kopt_x_y_z
> ## where x.y.z is kernel version. Minor versions can be omitted.
> ## e.g. kopt=root=/dev/hda1 ro
> # kopt=root=/dev/hda2 ro
>
> ## default grub root device
> ## e.g. groot=(hd0,0)
> # groot=(hd0,1)
>
> ## should update-grub create alternative automagic boot options
> ## e.g. alternative=true
> ## alternative=false
> # alternative=false
>
> ## should update-grub lock alternative automagic boot options
> ## e.g. lockalternative=true
> ## lockalternative=false
> # lockalternative=false
>
> ## altoption boot targets option
> ## multiple altoptions lines are allowed
> ## e.g. altoptions=(extra menu suffix) extra boot options
> ## altoptions=(recovery mode) single
> # altoptions=(recovery mode) single
>
> ## nonaltoption boot targets option
> ## This option controls options to pass to only the
> ## primary kernel menu item.
> ## You can have ONLY one nonaltoptions line
> # nonaltoptions=quiet splash
>
> ## controls how many kernels should be put into the menu.lst
> ## only counts the first occurence of a kernel, not the
> ## alternative kernel options
> ## e.g. howmany=all
> ## howmany=7
> # howmany=1
>
> ## should update-grub create memtest86 boot option
> ## e.g. memtest86=true
> ## memtest86=false
> # memtest86=false
>
> ## ## End Default Options ##
>
> title Ubuntu, kernel 2.6.12-9-386
> root (hd0,1)
> kernel /boot/vmlinuz-2.6.12-9-386 root=/dev/hda2 ro quiet splash
> initrd /boot/initrd.img-2.6.12-9-386
> savedefault
> boot
>
> ### END DEBIAN AUTOMAGIC KERNELS LIST
>
> # This is a divider, added to separate the menu items below from the
> Debian
> # ones.
> # title Other operating systems:
> # root
>
>
> # This entry automatically added by the Debian installer for a non-linux
> OS
> # on /dev/hda1
> title Windows XP
> root (hd0,0)
> savedefault
> makeactive
> chainloader +1
>
> --
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> ubuntu-users at lists.ubuntu.com
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>
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