<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - Distorted graphics (double cursor) with GeForce 4200Go (NV28)" href="https://bugs.freedesktop.org/show_bug.cgi?id=54700#c35">Comment # 35</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - Distorted graphics (double cursor) with GeForce 4200Go (NV28)" href="https://bugs.freedesktop.org/show_bug.cgi?id=54700">bug 54700</a> from <a class="email" href="mailto:emil.l.velikov@gmail.com" title="Emil Velikov <emil.l.velikov@gmail.com>"> Emil Velikov</a> <pre>(In reply to <a href="show_bug.cgi?id=54700#c34">comment #34</a>) > > As mentioned it seems like the tiling (pitch) is misset by ~64 (after a quick > > look at the attached picture) > > I'll look around for a doc to understand what you're saying... > My knowledge is kinf of flacky in the area, so here is the way I understand it. Gpus do not always treat and/or use memory on a linear way. It may be handled as a tile with certain dimensions > > Can you do try and establish if the issue happens in or outside of X, and in > > which cases > > what do you mean by outside X? Framebuffer terminal seemed ok, how can I > show a graphic without X? > Yes I meant the framebuffer. Not sure of many ways to draw stuff on it - directFB is project that normally deals with such things [1]. My main point is to understand if the issue is xf86-video-nouveau or libdrm/kernel related > >i.e. in X only when drawing an image of dimensions x1 & y1, or > > less than x2 & greater than y2 > > You mean rescaling a single image or showing images of different pixel size? > > And you really mean drawing (e.g. with office draw) or just showing existing > images? > I meant rendering images of different sizes. Looking at the iceweasel.png at bugs.debian.org indicates not everything rendered exhibits the distortion - would be great to know something specific about the files causing it Simple tests * grab the ice weasel picture, open it in a image viewer (and/or browser) - distorted ? * rescale the image (using gimp or other software), reopen the picture and observe. * same for the cursor file Cheers Emil [1] <a href="http://www.directfb.org/docs/DirectFB_Tutorials/image.html">http://www.directfb.org/docs/DirectFB_Tutorials/image.html</a></pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>