From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Richter Subject: Re: i835GM flicker on panning Date: Mon, 23 Sep 2013 10:30:15 +0200 Message-ID: <523FFC17.1090403@math.tu-berlin.de> References: <4319_1379778790_523DC0E3_4319_13540_1_CAKMK7uHynzChMurTLAYMfeRF07aDJxes-6eSO1iDbrET8xD84Q@mail.gmail.com> <523F2390.5030702@math.tu-berlin.de> <16566_1379880205_523F4D0D_16566_5011_1_CAKMK7uFNAhahpURH-LFj=x+8D2W7Z8y_-9OKhnJ_O4g7hyqu1Q@mail.gmail.com> <523F7020.702@math.tu-berlin.de> <17822_1379921548_523FEE8C_17822_1617_1_20130923073242.GA32145@phenom.ffwll.local> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <17822_1379921548_523FEE8C_17822_1617_1_20130923073242.GA32145@phenom.ffwll.local> Sender: linux-kernel-owner@vger.kernel.org To: Linux Kernel Mailing List , intel-gfx List-Id: intel-gfx@lists.freedesktop.org Hi Daniel, hi others, >> On 22.09.2013 22:03, Daniel Vetter wrote: >>> Hm, that sounds a bit more like the ddx is having fun with rendering. >>> Have you tried switching the backed from to either SNA or UXA? Also >>> adding relevant mailing lists ... >>> >> No, whether I use uxa or sna makes no difference, same problem. I >> don't think it's rendering related. The rendering is ok (except for >> some defects in tuxracer if sna is used instead of uxa). > > Can you please test with > > Option "LinearFramebuffer" "true"? Did. Still flickers. I'm not quite sure, but it seems to me that there is at least one change (but allow me to test): If I'm now panning from left to right (move the mouse to the right), then the screen is stable. If I move it to the left, I get the flicker. Which is pretty strange. Unless I'm completely mistaken, the tiled mode created flicker no matter whether I scrolled left to right or right to left, it just depended on the position. Wierd. Greetings, Thomas