From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
To: "Chris Wilson" <chris@chris-wilson.co.uk>,
"Daniel Vetter" <daniel.vetter@intel.com>,
"Jani Nikula" <jani.nikula@linux.intel.com>,
"David Airlie" <airlied@linux.ie>,
"Ville Syrjälä" <ville.syrjala@linux.intel.com>,
huax.lu@intel.com, "Daniel Vetter" <daniel.vetter@ffwll.ch>,
intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Revert "drm/i915: Performed deferred clflush inside set-cache-level"
Date: Mon, 13 Apr 2015 11:28:46 +0530 [thread overview]
Message-ID: <20150413055846.GA2775@sudip-PC> (raw)
In-Reply-To: <20150401043150.GB4638@sudip-PC>
On Wed, Apr 01, 2015 at 10:01:50AM +0530, Sudip Mukherjee wrote:
> On Tue, Mar 31, 2015 at 04:35:49PM +0100, Chris Wilson wrote:
> > On Tue, Mar 31, 2015 at 08:40:12PM +0530, Sudip Mukherjee wrote:
> > > This reverts commit <0f71979ab7fbd0c71c41c2798de3d33937915434>.
> > >
> > > my display was getting garbled for a moment very frequently. it looked
> > > like when the screen was getting refreshed then something was going
> > > wrong.
> > > git bisect gave this as the first bad commit, and after reverting it
> > > now display is not having that problem.
> >
> > Hmm, I fear you would be just papering over a bug. Could you please file
> > a bug on bugs.freedesktop.org so that we can root cause this?
> > -Chris
> filed at https://bugs.freedesktop.org/show_bug.cgi?id=89857
>
> since this patch workes perfectly for me, i guess i need to apply it to
> every new release till you are able to root cause and fix it.
I am having the same problem with v4.0 also. Though I guess there is
some improvement as now the problem is not appearing as frequently as
it used to be.
And reverting the patch again completely removed the problem.
regards
sudip
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prev parent reply other threads:[~2015-04-13 5:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-31 15:10 [PATCH] Revert "drm/i915: Performed deferred clflush inside set-cache-level" Sudip Mukherjee
2015-03-31 15:35 ` Chris Wilson
2015-04-01 4:31 ` Sudip Mukherjee
2015-04-13 5:58 ` Sudip Mukherjee [this message]
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