<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none;"></style> </head> <body dir="ltr"> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Helvetica,sans-serif;" dir="ltr"> <p style="margin-top:0;margin-bottom:0">Hi all,</p> <p style="margin-top:0;margin-bottom:0"><br> </p> <p style="margin-top:0;margin-bottom:0">I'm getting terrible screen distortion/tearing with a SiliconMotion SM712 LynxEM+ with 4MB of video ram.</p> <p style="margin-top:0;margin-bottom:0"><br> </p> <p style="margin-top:0;margin-bottom:0">If you google around it seems the issue has been seen by others too, but I *think* only with EXA enabled. I have not seen the problem when acceleration is disabled. I dug into the</p> <p style="margin-top:0;margin-bottom:0">EXA code in the xf86-video-siliconmotion driver and found that if I modify the EXA "<span>offScreenBase" in</span> <span>SMI_EXAInit() the tearing is drastically reduced. In my testing I just set it to memorySize/2. I do not know what the proper method is. I did try to disable the offscreen memory manager but that caused Xorg to panic somewhere after "Initializing DRI2".</span></p> <p style="margin-top:0;margin-bottom:0"><span><br> </span></p> <p style="margin-top:0;margin-bottom:0"><span><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;">I am looking for any suggestions. I'd like to eventually get a fix checked in if possible.</span><br> </span></p> <p style="margin-top:0;margin-bottom:0"><span><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;"><br> </span></span></p> <p style="margin-top:0;margin-bottom:0"><span><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;">Thanks,</span></span></p> <p style="margin-top:0;margin-bottom:0"><span><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;">Alex</span></span></p> </div> </body> </html>