Re: [Intel-gfx] How To Reduce/Eliminate Horizontal Tearing
On Thu, Dec 11, 2008 at 22:37:43 -0500, Nick Nobody wrote: [...] Sorry, you're right. I glanced over it when reading through the xvinfo output. In the case that your applications use the textured video XV port as the default port, you could use version 2.5.1 of the driver and the XvPreferOverlay option. Regards, Tino ___ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
Re: How To Reduce/Eliminate Horizontal Tearing
Ross Vandegrift wrote: On Fri, Dec 12, 2008 at 12:00:17AM +0200, Nikos Chantziaras wrote: Markus Strobl wrote: That's not my experience. I've tested most of the possible combinations: Intel, ATI+fglrx, ATI+Radeon and closed-source NVidia. Only Intel has the tearing issue. All the others play video, including HD-Video, perfectly. BTW, my MediaPC has a cheap dual core Intel Core 2 @1.8 GHz and a $30 NVidia graphics card. It has no problems playing H.264 720p. The above is using XV, I don't use the OpenGL overlay as it had some issues. ATI does not. Only NVidia plays without tearing with Xv. mga does. Just watched a few hours of shows on an mga G-series and mplayer, tearing doesn't exist. Oops, sorry, you're right. These days we tend to think that there's only ATI, NVidia and a bit of Intel out there :) I also never had tearing my old Matrox. ___ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
Re: How To Reduce/Eliminate Horizontal Tearing
On Wed, 2008-12-10 at 21:11 -0800, Keith Packard wrote: 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. The radeon driver from current Git just stalls the command stream until scanout is outside of the vertical area rendered to by the XVideo blit. Pretty sure Intel hardware would support this as well. -- Earthling Michel Dänzer | http://tungstengraphics.com Libre software enthusiast | Debian, X and DRI developer ___ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
Re: How To Reduce/Eliminate Horizontal Tearing
Nick Nobody wrote: Can you recommend a media player that is able to use OpenGL? I've tried mplayer but even on a relatively fast cpu it can't playback the video fast enough (720p content). Unless I'm missing some magic switch that's buried deep within the man page :) MPlayer can be compiled with OpenGL support; mplayer -vo help will give you a list of supported drivers. For HD video, you really need video hardware which can take 4:2:0 YUV data and perform conversion and scaling itself. If the player has to perform conversion and/or scaling, that's going to eat both CPU and memory bandwidth. You also need to avoid exceeding any hardware-imposed limits on the size of the source data (i.e. either the size of the overlay or the maximum texture size). E.g. if the card limits textures to 1024x1024, and you try to play 1280x720 video with a driver that uses OpenGL texture mapping for scaling, the player may silently fall back to a slower driver. Finally, h.264 is far more CPU-intensive than e.g. XviD. If the player is using 100% CPU, it's possible that the decoding is the bottleneck. Try mplayer -vo null; if that uses 100% CPU, then the problem is with decoding the video rather than displaying it. -- Glynn Clements [EMAIL PROTECTED] ___ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
Re: How To Reduce/Eliminate Horizontal Tearing
Nikos Chantziaras wrote: Nick Nobody wrote: That would be just a temporary solution with too many problems (since I assume a real solution will be in DRI2?) The OpenGL method with VSync works quite well. Can you recommend a media player that is able to use OpenGL? I've tried mplayer but even on a relatively fast cpu it can't playback the video fast enough (720p content). Unless I'm missing some magic switch that's buried deep within the man page :) I'm afraid there's no magic switch :P You can give VLC a shot but it never worked for me. Unfortunately, HD video and Linux still don't play along well. That's not my experience. I've tested most of the possible combinations: Intel, ATI+fglrx, ATI+Radeon and closed-source NVidia. Only Intel has the tearing issue. All the others play video, including HD-Video, perfectly. BTW, my MediaPC has a cheap dual core Intel Core 2 @1.8 GHz and a $30 NVidia graphics card. It has no problems playing H.264 720p. The above is using XV, I don't use the OpenGL overlay as it had some issues. /Markus ___ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
Re: How To Reduce/Eliminate Horizontal Tearing
Markus Strobl wrote: That's not my experience. I've tested most of the possible combinations: Intel, ATI+fglrx, ATI+Radeon and closed-source NVidia. Only Intel has the tearing issue. All the others play video, including HD-Video, perfectly. BTW, my MediaPC has a cheap dual core Intel Core 2 @1.8 GHz and a $30 NVidia graphics card. It has no problems playing H.264 720p. The above is using XV, I don't use the OpenGL overlay as it had some issues. ATI does not. Only NVidia plays without tearing with Xv. ___ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
Re: [Fwd: Re: How To Reduce/Eliminate Horizontal Tearing]
On Thu, 11 Dec 2008 00:34:47 -0500 (EST), Nick Nobody wrote: That would be really cool, I obviously have no idea how to implement it though... At the moment I'm using XBMC to play back videos and it does have a Vertical Blank Sync option but I'm not sure of how it's implemented (it clearly doesn't work as advertised). I doubt they're using Xv anyway so that's irrelevant. Hmm.. There shouldn't be a problem with tearing in xbmc for intel cards. Atleast I don't have it anymore. I have noted that if driconf is set to always wait on blank, on some systems we end up waiting twice (just set it to driver select in settings), but otherwise there shouldn't be a problem. Then again, I've not tested master of current xorg/xserver/dri. But hardy/gutsy versions work just fine. The only issue was that we have to force a glFinish() before swapping in case of driconf set to always wait, since driver seem to wait for vblank then flush/finish opengl commands which makes it often miss the vblank. And no we don't use xv. Regards elu...@xbmc.org ___ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
Re: [Intel-gfx] How To Reduce/Eliminate Horizontal Tearing
On 2008.12.11 13:32:35 +0800, Nick Nobody wrote: 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. Keith, how about a Xv attribute for this? User can decide if want to turn it on or off. The GM945 only has the overlay adaptor, I initially thought that was the cause too... No, 945 has texture video support, overlay should do vblank sync for you in the hw. -- Open Source Technology Center, Intel ltd. $gpg --keyserver wwwkeys.pgp.net --recv-keys 4D781827 signature.asc Description: Digital signature ___ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
Re: [Intel-gfx] How To Reduce/Eliminate Horizontal Tearing
On Thu, December 11, 2008 22:00, Zhenyu Wang wrote: On 2008.12.11 13:32:35 +0800, Nick Nobody wrote: 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. Keith, how about a Xv attribute for this? User can decide if want to turn it on or off. The GM945 only has the overlay adaptor, I initially thought that was the cause too... No, 945 has texture video support, overlay should do vblank sync for you in the hw. Sorry, you're right. I glanced over it when reading through the xvinfo output. nick ___ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
Re: How To Reduce/Eliminate Horizontal Tearing
Nick Nobody m...@nikosapi.org writes: 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... I have a GM945-based media centre PC that I just set up, although only at standard definition. I also noticed tearing when playing full screen videos with mplayer. My solution was found by running xvinfo, noticing that two X-Video ports were ports were available and using the second. For mplayer, this was a matter of running it with -vo xv:port=xx, where xx was the port number of the second port. This can also go into mplayer's config file. ___ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
Re: How To Reduce/Eliminate Horizontal Tearing
On Fri, 2008-12-12 at 00:00 +0200, Nikos Chantziaras wrote: Markus Strobl wrote: That's not my experience. I've tested most of the possible combinations: Intel, ATI+fglrx, ATI+Radeon and closed-source NVidia. Only Intel has the tearing issue. All the others play video, including HD-Video, perfectly. BTW, my MediaPC has a cheap dual core Intel Core 2 @1.8 GHz and a $30 NVidia graphics card. It has no problems playing H.264 720p. The above is using XV, I don't use the OpenGL overlay as it had some issues. ATI does not. Only NVidia plays without tearing with Xv. Define 'ATI'. The radeon driver in current Git is able to play Xv without tearing on all pre-R600 Radeons. -- Earthling Michel Dänzer | http://tungstengraphics.com Libre software enthusiast | Debian, X and DRI developer ___ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
Re: How To Reduce/Eliminate Horizontal Tearing
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? I don't think it's possible to have video without tearing in X.Org with xv. You'll have to use a media player that can render in OpenGL and enable VSync. At least, that's how I was able to get acceptable video without tearing. ___ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
RE: [Intel-gfx] How To Reduce/Eliminate Horizontal Tearing
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]; xorg@lists.freedesktop.org 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 xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
[Fwd: Re: How To Reduce/Eliminate Horizontal Tearing]
Forgot to reply to all :S Original Message Subject: Re: How To Reduce/Eliminate Horizontal Tearing From:Nick Nobody [EMAIL PROTECTED] Date:Thu, December 11, 2008 00:30 To: Keith Packard [EMAIL PROTECTED] -- On Thu, December 11, 2008 00:11, Keith Packard wrote: 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. -- [EMAIL PROTECTED] Hi Keith! That would be really cool, I obviously have no idea how to implement it though... At the moment I'm using XBMC to play back videos and it does have a Vertical Blank Sync option but I'm not sure of how it's implemented (it clearly doesn't work as advertised). I doubt they're using Xv anyway so that's irrelevant. Seeing as this is a media center PC, I really don't care if the system has to wait for the next vblank, it's only being used to watch videos. And at at a 60Hz vsync I doubt it would even be noticeable I just wanted to make sure that my hardware is capable of playing back this content. I got quite worried when I noticed the tearing on this new box that I bought :) Thanks, nick ___ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
Re: How To Reduce/Eliminate Horizontal Tearing
On Thu, December 11, 2008 00:31, Nikos Chantziaras wrote: Keith Packard wrote: 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. That would be just a temporary solution with too many problems (since I assume a real solution will be in DRI2?) The OpenGL method with VSync works quite well. Can you recommend a media player that is able to use OpenGL? I've tried mplayer but even on a relatively fast cpu it can't playback the video fast enough (720p content). Unless I'm missing some magic switch that's buried deep within the man page :) nick ___ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
Re: How To Reduce/Eliminate Horizontal Tearing
Nick Nobody wrote: That would be just a temporary solution with too many problems (since I assume a real solution will be in DRI2?) The OpenGL method with VSync works quite well. Can you recommend a media player that is able to use OpenGL? I've tried mplayer but even on a relatively fast cpu it can't playback the video fast enough (720p content). Unless I'm missing some magic switch that's buried deep within the man page :) I'm afraid there's no magic switch :P You can give VLC a shot but it never worked for me. Unfortunately, HD video and Linux still don't play along well. ___ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
