Re: [Xen-users] Have you ever met this behavior with IGD passthrough?

["G.R." <firemeteor@xxxxxxxxxxxxxxxxxxxxx>]

Hi guys, any comment on this?

On Fri, Jul 26, 2013 at 3:04 PM, G.R. <firemeteor@xxxxxxxxxxxxxxxxxxxxx> wrote:
> Hi guys,
>
> I know that both of you are playing with IGD passthrough. So I would
> like to check with you if I'm the only one that saw this behavior.
> In my system, the panel becomes flickering rapidly with different
> colors after domU starts. This lasts until the guest loads gfx driver.
> There is a workaround by loading the VGA module in GRUB2, which
> greatly shorten the time it flickers. But with a natively installed
> windows guest, the flickering lasts until the OS get the login screen
> prepared. But if the windows is not properly shutdown and the system
> enters the repairing screen in next boot, you can simply see nothing
> in this case.
>
> This is not show-stopper but is quite annoying. But to my surprise, it
> seems that nobody mentions this behavior in blogs / mail-lists. What's
> your case then?
>
> PS: Previously (e.g. xen 4.2.x), this flickering only happens happen
> on a second guest boot and later-on (Per host reboot). I just upgraded
> to xen 4.3.0, and haven't got chance to see if this behavior has
> changed.
>
> Thanks,
> Timothy

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