Need help with GRUB video modes!

[blnl]

Since my screen resolution is 1024x768, I would like that GRUB starts in that resolution as well.

This is how my menu.lst looks like:

# Modified by YaST2. Last modification on Sat Jul 11 20:25:14 CEST 2009
default 0
timeout 9
gfxmenu (hd0,2)/boot/message

title openSUSE 11.0 - 2.6.25.20-0.4
    root (hd0,2)
    kernel /boot/vmlinuz-2.6.25.20-0.4-pae root=/dev/disk/by-id/scsi-SATA_HDS728080PLA380_PFDB32S6R2DKHN-part3 splash=silent showopts vga=0x314
    initrd /boot/initrd-2.6.25.20-0.4-pae

title openSUSE 11.0 - 2.6.25.20-0.4 (Failsafe)
    root (hd0,2)
    kernel /boot/vmlinuz-2.6.25.20-0.4-pae root=/dev/disk/by-id/scsi-SATA_HDS728080PLA380_PFDB32S6R2DKHN-part3 showopts ide=nodma apm=off acpi=off noresume nosmp noapic maxcpus=0 edd=off x11failsafe vga=0x314
    initrd /boot/initrd-2.6.25.20-0.4-pae

title  openSUSE 11.1 - 2.6.27.23-0.1 (/dev/sdd4)
    rootnoverify (hd0,3)
    chainloader +1

title Windows XP
    rootnoverify (hd0,2)
    chainloader (hd0,0)+1

title Floppy
    rootnoverify (hd0,2)
    chainloader (hd0)+1

According to table below (found somewhere on the Internet) vga=0x314 stands for 800x600 video resolution.

+--------------------------------------------------+
     | 640x480    800x600    1024x768   1280x1024
-----+----------------------------------------------
 256 | 0x301=769  0x303=771  0x305=773   0x307=775
 32K | 0x310=784  0x313=787  0x316=790   0x319=793
 64K | 0x311=785  0x314=788  0x317=791   0x31A=794
 16M | 0x312=786  0x315=789  0x318=792   0x31B=795
+--------------------------------------------------+

To change the GRUB video resolution, I have tried different possibilities

vga=0x31A
vga=0x319

also 1024x768 resolution

vga=0x317

Any of these settings results in text screen during boot.

What am I doing wrong?

[suse_amd64x2]

This link might help: VideoSubsystem - GRUB Wiki

[whych]

If you have an installed system, go to yast2>system>boot loader then edit and add the screen resolution 317.

[blnl]

This link might help: VideoSubsystem - GRUB Wiki

This is very complex, I would not know what to do with it.
Could you give me a hint?

[suse_amd64x2]

Actually whych came up with a better solution above. Easier. I have a habit of referring people to other links where a lot of reading is involved, lol.

[whych]

When the boot loader settings screen comes up, highlight the relevant entry and click edit.
At the bottom of the next screen is an entry box for VGA mode. Enter 0x317 in it for your resolution. Save it and you should see the mode at the bottom of the grub boot screen next time you boot.

suse_amd64x2:
Lots of reading is probably not a bad thing when you run linux - we linux users are probably the biggest self-help group around.

[blnl]

If you have an installed system, go to yast2>system>boot loader then edit and add the screen resolution 317.

I did that as well, but it does not help.

In fact, what I see is following:
Boot menu is displayed in green graphical mode, resolution 800x600. It shows "Boot Options = vga=0x317"

When I press enter, green screen disappears and bunch of text is being scrolled over the screen.
I would like to see the standard green screen with the progress bar.
By the way, such screen is displayed only with vga=0x314.

[whych]

Try adding splash=silent showopts to the end of the 'optional kernel command line parameter' box in yast2>system>boot loader settings.
This should give the splash screen.
Sometimes it's not a bad idea to see what is being loaded at boot (the txt you are seeing).

[blnl]

Yes I agree with you. It can be useful to see what is being loaded, but only when I want to see it.

However, "splash=silent showopts" is always there (please see the menu.lst at the beginning of the thread).

So this works properly:
kernel /boot/vmlinuz-2.6.25.20-0.4-pae root=/dev/disk/by-id/scsi-SATA_HDS728080PLA380_PFDB32S6R2DKHN-part3 splash=silent showopts vga=0x314

while this shows only text:
kernel /boot/vmlinuz-2.6.25.20-0.4-pae root=/dev/disk/by-id/scsi-SATA_HDS728080PLA380_PFDB32S6R2DKHN-part3 splash=silent showopts vga=0x317

[blnl]

I have enabled 1024x768 splash screen as follows:

linux:/ # mkinitrd -s 1024x768

Kernel image:   /boot/vmlinuz-2.6.25.20-0.4-pae
Initrd image:   /boot/initrd-2.6.25.20-0.4-pae
Root device:	/dev/disk/by-id/scsi-SATA_HDS728080PLA380_PFDB32S6R2DKHN-part3 (/dev/sdd3) (mounted on / as ext3)
Kernel Modules:	processor thermal dock scsi_mod libata pata_sil680 ata_piix fan jbd mbcache ext3 edd sd_mod usbcore ohci-hcd uhci-hcd ehci-hcd ff-memless hid usbhid 
Features:       block usb resume.userspace resume.kernel
Bootsplash:	openSUSE (1024x768)
21512 blocks
linux:/ #

There is still one other issue that needs to be solved.
The splash screen is completely distorted because the monitor frequency is not set properly.
Vertical frequency is 60Hz, it should be 85Hz.
How to fix this?