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Old 05-04-12, 09:33 AM   #1
RealNC
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Default 302.07: Xv V-Sync is borked

Since VDPAU is unusable with KDE, I always use Xv with mplayer. It works great. However, I tested the 302.07 beta driver and found a regression: The video shows a tearing line that slowly moves from top to bottom over time and "jitters" slightly up/down while doing the general downwards motion. It takes about 20 seconds for the tearing line to go from top to bottom. Then it appears again at the top and repeats.

The "Sync to VBlank" checkbox for "Video Texture Adaptor" is checked in nvidia-settings.

This is on 64-bit, using X.Org server 1.12.1 and kernel 3.3.4 with a GTX 560 Ti.

Edit:
I only have one monitor, connected through DVI-D, 1920x1080.
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Old 05-04-12, 10:50 AM   #2
Plagman
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Default Re: 302.07: Xv V-Sync is borked

Can you expand on "VDPAU unusable with KDE"? Is there already a thread detailing the issues there? Sorry if I missed it.

Can you please attach an nvidia-bug-report.log?
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Old 05-04-12, 10:56 AM   #3
RealNC
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Default Re: 302.07: Xv V-Sync is borked

Quote:
Originally Posted by Plagman View Post
Can you expand on "VDPAU unusable with KDE"? Is there already a thread detailing the issues there? Sorry if I missed it.
Yes, the thread is:

http://www.nvnews.net/vbulletin/showthread.php?t=173519

Quote:
Can you please attach an nvidia-bug-report.log?
Oops, I should have remembered to do that myself. I will re-install 302.07 shortly and attach it.
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Old 05-04-12, 11:11 AM   #4
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Default Re: 302.07: Xv V-Sync is borked

Here goes. X was started with "-logverbose 6".
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File Type: gz nvidia-bug-report.log.gz (74.0 KB, 34 views)
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Old 05-04-12, 11:38 AM   #5
RealNC
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Default Re: 302.07: Xv V-Sync is borked

I should mention something I just discovered: If I go into nvidia-settings and uncheck the "Sync to VBlank" and check it again, this seems to fix it. What's weird is that I can uncheck it again, but Xv vsync is still happening. If I restart X, I have to go into nvidia-settings again and play with the checkbox again to get Xv vsync back.
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Old 05-04-12, 12:23 PM   #6
RealNC
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Default Re: 302.07: Xv V-Sync is borked

(I hope I'm not spamming here.)

Turns out that just starting nvidia-settings fixes it, even if I don't change any settings in there.
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Old 05-04-12, 12:25 PM   #7
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Default Re: 302.07: Xv V-Sync is borked

Quote:
Originally Posted by RealNC View Post
(I hope I'm not spamming here.)

Turns out that just starting nvidia-settings fixes it, even if I don't change any settings in there.
Are you running "nvidia-settings -l" when your desktop environment or window manager starts up?
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Old 05-04-12, 12:32 PM   #8
RealNC
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Default Re: 302.07: Xv V-Sync is borked

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Originally Posted by mocharhw View Post
Are you running "nvidia-settings -l" when your desktop environment or window manager starts up?
I never needed to. Where did you get that information that this needs to be done?
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Old 05-04-12, 04:31 PM   #9
Gusar
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Default Re: 302.07: Xv V-Sync is borked

I've noticed tearing too. When there's sideways motion, I see a tear line moving up. But no amount of playing with nvidia-settings fixes it. I think it's a simple matter of xv sync not being active, despite nvidia-settings saying it is. nvidia-bug-report is attached.
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File Type: gz nvidia-bug-report.log.gz (33.2 KB, 25 views)
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Old 05-04-12, 05:00 PM   #10
Licaon
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Default Re: 302.07: Xv V-Sync is borked

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Originally Posted by RealNC View Post
I never needed to. Where did you get that information that this needs to be done?
how else would the settings you modified in nvidia-settings be applied then ?
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Old 05-04-12, 06:08 PM   #11
RealNC
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Default Re: 302.07: Xv V-Sync is borked

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Originally Posted by Licaon View Post
how else would the settings you modified in nvidia-settings be applied then ?
I don't know. I was using an ATI card before and I never needed to run catalyst control center to apply the settings. The driver itself would load them automatically. This seems to work the same way with NVidia drivers prior to 302.07.

Sounds kind of weird that I would need to run a program manually to apply settings.
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Old 05-04-12, 07:16 PM   #12
Gusar
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Default Re: 302.07: Xv V-Sync is borked

It may sound weird, but it is so. If you've set anything in nvidia-settings that's not the default (xv sync *is* default), it'll only get applied when you launch nvidia-settings. That's why the "--load-config-only" option exists, so you can put it in start-up scripts (in my case ~/.config/openbox/autostart)
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