Re: Hyper-V Synthetic Video Frame Buffer Driver may distort top two lines of console

[Brian Wong]

On 3/6/2014 4:05 PM, Brian Wong wrote:
> On 3/6/2014 3:41 PM, Brian Wong wrote:
> > I've identified another possible bug in the Hyper-V drivers: When the
> > Hyper-V Synthetic Video Frame Buffer Driver is built into the kernel,
> > and the VM is paused and continued, the top two lines of the console may
> > become distorted. See the image at http://imgur.com/kIExFP3.
> >
> > Can someone look into it?
>
> Just to clarify, I can confirm this bug under both the patched Gentoo
> 3.10.32 kernel and the vanilla 3.13.5 kernel (see the image at
> http://imgur.com/mYUTzgt). Is the framebuffer somehow getting corrupted?

The problem also reproduces under Kali Linux with kernel 3.12.6, but 
only on virtual consoles that are not hosting a graphical X session. The 
problem does not appear in X.

--
Brian Wong
http://www.fierydragonlord.com
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/