Re: Grub 2 EFI blind mode [Solved]

[Andrey Borzenkov]

В Sat, 05 Jan 2013 20:54:06 +0000
Richard Collins <address@hidden> пишет:

> Thanks Tom but the problem wasn't the discs, I've had some success.  It's a 
> case of multi problems, I think my PC has a grudge.
> 

You say "SOLVED" but do not explain how. It would be helpful for others
if you explained how you solved it.

> Problem #1: no keyboard/mouse with 64 bit distros 
> Reason: IOMMU support was enabled in the BIOS, this was enabled to try and 
> fix 
> #2
> 
> Problem #2: NVidia driver is unstable on a Grub2+EFI+64bit system
> The fix was supposed to be disable the graphics that grub uses.  This causes 
> #3
> 
> Problem 3#: Changing the grub settings I discribed means that you can't see 
> the boot screen - not a feature I'm comfortable with and stops booting if the 
> boot process needs user input.
> Solution: ?
> 

So that I understand what happens

- you get GRUB2 screen. You see output and can use keyboard to navigate
  it. Right?
- GRUB2 screen itself is in text mode or in graphic mode?
- when you select GRUB2 menu entry to launch Linux you get messages
  about wrong mode and "booting blind". No output from Linux kernel
  after that. Correct?

> On Saturday 05 Jan 2013 14:16:13 you wrote:
> 
> Hello all, I need some help. My system has become unbootable.
> 
> It was working fine with EFI booting until I set the following in 
> /etc/default/grub.conf
> GRUB_GFXPAYLOAD_LINUX=text
> GRUB_GFXMODE=auto
> 
> I then ran update-grub2
> 
> When I reboot grub says:
> "error: invalid video mode specification 'text'
> "booting in blind mode"
> 
> the system then hangs indefinatly after a brief flash from the harddrive.  It 
> may be waiting for a password for an encrypted volume I have but i wont 
> repond 
> to "S" or "Esc" keypresses
> 
> I've tried adding set gfxpayload=true|keep|false - none of which work
> Ive tried adding set gfxmode=640x480
> 
> The kubuntu boot cd wont load properly and 12.04 has broken keyboard / mouse 
> support. this is driving me mad!
> 
> How can I undo the changes I made at the commandline?
> Does anyone know a good efi rescue system?
> 
> I have a MSI 990FXA-GD65 (version E7640AMS V19.9)
> The system only has Kubuntu 12.10 installed on ssd with gpt
> 
>