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solving blank screen during boot

From: Ilias Miroslav
Subject: solving blank screen during boot
Date: Tue, 20 Sep 2011 17:04:44 +0200

Dear experts,

I'm writing you concerning the blank (bright violet) screen during boot after 
upgrade to Ubuntu 11.04 of my 4 core AMD64.
Here is the forum,

My Grub is of version 1.99~rc1-13ubuntu3.

As I described on that forum,, I was able to 
boot Ubuntu 11.04
only with the parameter of GRUB_CMDLINE_LINUX_DEFAULT="vga=0x037d" in 

However,  this fix is not perfect.

I had to press keys and starton-button in order to continue the booting - to be 
able to see rolling out the boot-up text and finally get the X-login screen. 
For example, the boot often stops at line "ehci_hcd 0000....irq no, io mem 
....", where I have to push thing with PC startup button.

Often I get into the "initframs>" command line where I have to write 'reboot'. 

Please how do I have setup the "/etc/default/grub" parameters in order to get 
smooth bootup/shutdown without pressing keys/startup button ? 
I can provide with further details (logs).



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