Messages in this thread | | | From | KY Srinivasan <> | Subject | RE: Hyper-V Synthetic Video Frame Buffer Driver may distort top two lines of console | Date | Thu, 6 Mar 2014 21:50:51 +0000 |
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> -----Original Message----- > From: Brian Wong [mailto:draconicpenguin1@yahoo.com] > Sent: Friday, March 7, 2014 3:19 AM > To: KY Srinivasan; linux-kernel@vger.kernel.org > 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.
Regards,
K. Y > > > > 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
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