Xen users - May 2011 - Help! Xen dom0 kernel-2.6.38 shows blank screen!

Hello, my name is Viktor.

I use kernel-2.6.38.5 as dom0.
I can''t get access to console dom0. There is a blank screen after
xen-4.1.0.gz loading.
But dom0 is loaded and I have got it from ssh and it works fine.
I just see nothing at monitor screen. Why?
May be I have error in my grub.conf settings, please help!


My video card:
ATI Technologies Inc M92 [Mobility Radeon HD 4500 Series]


My grub.conf:
title ArchLinux-2.6-my-xen
	root (hd0,0)
	kernel /archlinux/xen-4.1.0.gz dom0_mem=2048M noreboot sync_console
console_to_ring loglvl=all guest_loglvl=all 
	module /archlinux/vmlinuz26-my ro root=/dev/disk/by-label/ROOT panic=30
resume=/dev/disk/by-label/RW resume_offset=2750468 console=tty0
console=hvc0 earlyprintk=xen
	module /archlinux/kernel26-my.img




My dom0 kernel compilation options (grep -i xen .config):
CONFIG_XEN=y
CONFIG_XEN_DOM0=y
CONFIG_XEN_PRIVILEGED_GUEST=y
CONFIG_XEN_PVHVM=y
CONFIG_XEN_MAX_DOMAIN_MEMORY=128
CONFIG_XEN_SAVE_RESTORE=y
# CONFIG_XEN_DEBUG_FS is not set
CONFIG_PCI_XEN=y
CONFIG_XEN_PCIDEV_FRONTEND=m
CONFIG_XEN_BLKDEV_FRONTEND=m
CONFIG_NETXEN_NIC=m
CONFIG_XEN_NETDEV_FRONTEND=m
CONFIG_XEN_KBDDEV_FRONTEND=y
CONFIG_HVC_XEN=y
CONFIG_XEN_FBDEV_FRONTEND=y
# Xen driver support
CONFIG_XEN_BALLOON=y
CONFIG_XEN_SCRUB_PAGES=y
CONFIG_XEN_DEV_EVTCHN=y
CONFIG_XEN_BACKEND=y
CONFIG_XENFS=y
CONFIG_XEN_COMPAT_XENFS=y
CONFIG_XEN_SYS_HYPERVISOR=y
CONFIG_XEN_XENBUS_FRONTEND=y
CONFIG_XEN_GNTDEV=m
CONFIG_XEN_PLATFORM_PCI=y
CONFIG_SWIOTLB_XEN=y




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Hello,

It does happen with recent kernels, though noone explained why yet.

A workaround is to either compile and load framebuffer modules for
your card, or install X. Once either of these is activated, you''ll be
able to "see" again.

Good luck!

On Fri, May 20, 2011 at 12:36 PM, Victor <only-victor@mail.ru>
wrote:
> Hello, my name is Viktor.
>
> I use kernel-2.6.38.5 as dom0.
> I can''t get access to console dom0. There is a blank screen after
> xen-4.1.0.gz loading.
> But dom0 is loaded and I have got it from ssh and it works fine.
> I just see nothing at monitor screen. Why?
> May be I have error in my grub.conf settings, please help!
>
>
> My video card:
> ATI Technologies Inc M92 [Mobility Radeon HD 4500 Series]
>
>
> My grub.conf:
> title ArchLinux-2.6-my-xen
>        root (hd0,0)
>        kernel /archlinux/xen-4.1.0.gz dom0_mem=2048M noreboot sync_console
> console_to_ring loglvl=all guest_loglvl=all
>        module /archlinux/vmlinuz26-my ro root=/dev/disk/by-label/ROOT
panic=30
> resume=/dev/disk/by-label/RW resume_offset=2750468 console=tty0
> console=hvc0 earlyprintk=xen
>        module /archlinux/kernel26-my.img
>
>
>
>
> My dom0 kernel compilation options (grep -i xen .config):
> CONFIG_XEN=y
> CONFIG_XEN_DOM0=y
> CONFIG_XEN_PRIVILEGED_GUEST=y
> CONFIG_XEN_PVHVM=y
> CONFIG_XEN_MAX_DOMAIN_MEMORY=128
> CONFIG_XEN_SAVE_RESTORE=y
> # CONFIG_XEN_DEBUG_FS is not set
> CONFIG_PCI_XEN=y
> CONFIG_XEN_PCIDEV_FRONTEND=m
> CONFIG_XEN_BLKDEV_FRONTEND=m
> CONFIG_NETXEN_NIC=m
> CONFIG_XEN_NETDEV_FRONTEND=m
> CONFIG_XEN_KBDDEV_FRONTEND=y
> CONFIG_HVC_XEN=y
> CONFIG_XEN_FBDEV_FRONTEND=y
> # Xen driver support
> CONFIG_XEN_BALLOON=y
> CONFIG_XEN_SCRUB_PAGES=y
> CONFIG_XEN_DEV_EVTCHN=y
> CONFIG_XEN_BACKEND=y
> CONFIG_XENFS=y
> CONFIG_XEN_COMPAT_XENFS=y
> CONFIG_XEN_SYS_HYPERVISOR=y
> CONFIG_XEN_XENBUS_FRONTEND=y
> CONFIG_XEN_GNTDEV=m
> CONFIG_XEN_PLATFORM_PCI=y
> CONFIG_SWIOTLB_XEN=y
>
>
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
>
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