[Xen-users] Blank screen in EFI stub mode but seems to work.

[lmarcini <lmarcini@xxxxxxxxxxxxx>]

Hello, 

I installed Xen 4.3.0 on my laptop (Dell Precision M6700 with a Nvidia Quadro 
K4000 video card). Xen works (I can reach my computer by SSH and all the 
parameters seem to be fine) but, locally, my screen turns to blank  during 
init process. At the start of the boot, I can see messages on the local 
console. Then, in the middle of the process, screen turns blank. Keyboard and 
console work (I can login, launch commands in a "blind mode"  but there's no 
display). 

My computer works in full EFI mode (EFI stub), without GRUB. The FB driver is 
the efifb.  All is OK in a non XEN mode. My distro is a Gentoo ~amd64 with  a 
kernel 3.10.6.

My xen.cfg is :

options=console=vga dom0_mem=4096M,max:4096M dom0_max_vcpus=6 
dom0_vcpus_pin 
noreboot 
kernel=kernel-efi-x86_64-3.10.5-gentoo-r1 ignore_loglevel #earlyprintk=xen
ramdisk=initramfs-efi-x86_64-3.10.5-gentoo-r1
root=/dev/mapper/crypto-root

And here is the link for dmesg : http://pastebin.com/raw.php?i=X6Ax1Hwy

Thank you.
Laurent.

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