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

[Haiyang Zhang]

> -----Original Message-----
> From: KY Srinivasan
> Sent: Thursday, March 6, 2014 4:51 PM
> To: Brian Wong; linux-kernel@xxxxxxxxxxxxxxx; Haiyang Zhang
> Subject: RE: Hyper-V Synthetic Video Frame Buffer Driver may distort top
> two lines of console
> 
> 
> 
> > -----Original Message-----
> > From: Brian Wong [mailto:draconicpenguin1@xxxxxxxxx]
> > Sent: Friday, March 7, 2014 3:19 AM
> > To: KY Srinivasan; linux-kernel@xxxxxxxxxxxxxxx
> > Subject: Re: Hyper-V Synthetic Video Frame Buffer Driver may distort
> > top two lines of console
> >
> > 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?
> Haiyang (copied here) will look into it.
> 

It's a known issue. The root cause is not very clear yet.
It doesn't affect system functions. But we will look into it 
further.

Thanks,
- Haiyang

--
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/