On Thu, December 11, 2008 00:16, Zou, Nanhai wrote: >>-----Original Message----- >>From: [EMAIL PROTECTED] >>[mailto:[EMAIL PROTECTED] On Behalf Of Keith >> Packard >>Sent: 2008Äê12ÔÂ11ÈÕ 13:12 >>To: Nick Nobody >>Cc: [EMAIL PROTECTED]; [email protected] >>Subject: Re: [Intel-gfx] How To Reduce/Eliminate Horizontal Tearing >> >>On Wed, 2008-12-10 at 23:14 -0500, Nick Nobody wrote: >>> Hello, >>> >>> I'm using Ubuntu 8.10 with a GM945 (at 1920x1080) for my media center >>> PC. >>> The problem I'm running into is a bunch of horizontal tearing on >>> higher >>> resolution videos (720p or greater). From what I can tell it's not a >>> CPU >>> limitation but rather something related to the graphics card... >>> >>> Are there any options that I can enable in my xorg.conf to help >>> reduce/eliminate this tearing? Or is this simply a hardware >>> limitation? >>> Can XvMC somehow help me here? >> >>There aren't any options at this point, but I'm wondering -- is this >>full-screen? If we made full-screen Xv operations block until vblank >>(which would lock up the X server), would that be an acceptable option? >> >>It's actually very easy to do, just stick a 'wait for vblank' command >>into the ring right before the 'copy the new picture' command in the Xv >>extension code. It's just annoying when you're watching a tiny movie and >>your whole session stops responding. > Select overlay output will fix the tearing I think. > > Thanks > Zou Nan hai >
The GM945 only has the overlay adaptor, I initially thought that was the cause too... nick _______________________________________________ xorg mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/xorg
