# what's the problem of this grogram

**URL:** <https://forums.imgtec.com/t/whats-the-problem-of-this-grogram/689>\
**Category:** PowerVR Insider\
**Created:** [May 5, 2010, 4:08am UTC](https://forums.imgtec.com/t/whats-the-problem-of-this-grogram/689 "2010-05-05T04:08:52Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![think-dowell](https://avatars.discourse-cdn.com/v4/letter/t/3bc359/32.png) [@think-dowell](https://forums.imgtec.com/u/think-dowell)\
**Post date:** [May 5, 2010, 4:08am UTC](https://forums.imgtec.com/t/whats-the-problem-of-this-grogram/689/1 "2010-05-05T04:08:52Z")

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1. why \<span id=“result\_” =“short\_text”\>the screen vertical midline \<span id=“result\_” =“short\_text”\>split the image when the image moving\<span id=“result\_” =“short\_text”\> up and down?  
  
2. i use the omap3530, and use the screen by EGL, and control and render the image by  
  
  
OpenGL&nbsp; ES2.0。  
  
3. there is no problem when i create Window by X11 api, but if i use EGL instead of X11 api,  
  
  
this appearance \<span id=“result\_” =“short\_text”\>appear \<span id=“result\_” =“short\_text”\>.  
this vidio show the phenomenon  
  
  
[http://v.youku.com/v\_show/id\_XMTcwMjM4NzQ0.html](http://v.youku.com/v_show/id_XMTcwMjM4NzQ0.html)  
thanks

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**Author:** ![GordonMaclachlan](https://avatars.discourse-cdn.com/v4/letter/g/c68b51/32.png) [@GordonMaclachlan](https://forums.imgtec.com/u/GordonMaclachlan)\
**Post date:** [May 5, 2010, 8:30am UTC](https://forums.imgtec.com/t/whats-the-problem-of-this-grogram/689/2 "2010-05-05T08:30:40Z")

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The vertical split is because the platform is doing front buffer rendering. Hopefully an update wil fix this at some point in the future. Under X11 you’re not seeing this because it’s rendering in a different way. It is possible to reduce the tearing on this platform, but that will reduce performance - please send an email to devtech@imgtec.com if you are interested in this solution.

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**Author:** ![jennifer](https://avatars.discourse-cdn.com/v4/letter/j/46a35a/32.png) [@jennifer](https://forums.imgtec.com/u/jennifer)\
**Post date:** [September 26, 2010, 2:17am UTC](https://forums.imgtec.com/t/whats-the-problem-of-this-grogram/689/3 "2010-09-26T02:17:19Z")

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Could you please cofirm whether the problem is resolved in latest release? Thanks.

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**Author:** ![GordonMaclachlan](https://avatars.discourse-cdn.com/v4/letter/g/c68b51/32.png) [@GordonMaclachlan](https://forums.imgtec.com/u/GordonMaclachlan)\
**Post date:** [September 27, 2010, 9:48am UTC](https://forums.imgtec.com/t/whats-the-problem-of-this-grogram/689/4 "2010-09-27T09:48:54Z")

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Jennifer,  
  
I believe you’ve contacted us through email and we’ll follow up from there shortly.

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**Author:** ![jennifer](https://avatars.discourse-cdn.com/v4/letter/j/46a35a/32.png) [@jennifer](https://forums.imgtec.com/u/jennifer)\
**Post date:** [September 29, 2010, 7:15am UTC](https://forums.imgtec.com/t/whats-the-problem-of-this-grogram/689/5 "2010-09-29T07:15:24Z")

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Hi Gordon,

  

I still didn't receive any response, would you please help to check? Thanks&nbsp;a lot!  

&nbsp;
  

Kind Regards,
  

Jennifer

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**Author:** ![GordonMaclachlan](https://avatars.discourse-cdn.com/v4/letter/g/c68b51/32.png) [@GordonMaclachlan](https://forums.imgtec.com/u/GordonMaclachlan)\
**Post date:** [November 16, 2010, 11:07am UTC](https://forums.imgtec.com/t/whats-the-problem-of-this-grogram/689/6 "2010-11-16T11:07:17Z")

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Just to tie this thread up for anyone with a similar issue: this has now been passed to TI.