From: Brian Wong <draconicpenguin1@yahoo.com>
To: KY Srinivasan <kys@microsoft.com>, linux-kernel@vger.kernel.org
Subject: Re: Hyper-V Synthetic Video Frame Buffer Driver may distort top two lines of console
Date: Thu, 06 Mar 2014 16:49:05 -0500 [thread overview]
Message-ID: <5318ED51.4060400@yahoo.com> (raw)
In-Reply-To: <5318E311.8000303@yahoo.com>
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
next prev parent reply other threads:[~2014-03-06 21:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-06 20:41 Hyper-V Synthetic Video Frame Buffer Driver may distort top two lines of console Brian Wong
2014-03-06 21:05 ` Brian Wong
2014-03-06 21:49 ` Brian Wong [this message]
2014-03-06 21:50 ` KY Srinivasan
2014-03-06 22:08 ` Haiyang Zhang
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