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Old 10-26-08, 01:16 PM   #1
XVampireX
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Default 177.80 vsync problems

Hi, I'm using 177.80 driver and most things are working fine, but I'm having terrible problems with vsync, for some reason when I either watch a movie (In most outputs) or play a game (Mostly happens in some kind of emulator like pcsx/epsxe) I get horizontal tearing... a pretty bad one, and it can only be "solved" temporarily if I change the refresh rate in nvidia-settings utility to either 75hz or auto, that's also kinda random... Also something else to mention here is that the tearing is especially visible when in full screen...

If anyone can PLEASE help me solve this, I don't know if it's a bug or am I doing something wrong, perhaps something in my xorg?

here's my settings:

Code:
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 1.0  (buildmeister@builder63)  Wed Oct  1 15:10:25 PDT 2008

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 1.0  (buildmeister@builder63)  Wed Oct  1 15:09:35 PDT 2008

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Module"
    Load           "dbe"
    Load           "extmod"
    Load           "type1"
    Load           "freetype"
    Load           "glx"
EndSection

Section "ServerFlags"
    Option         "Xinerama" "0"
EndSection

Section "InputDevice"

	# generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

	# generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "AOC TFT1980"
    HorizSync       30.0 - 83.0
    VertRefresh     55.0 - 75.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 8800 GTX"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "0"
    Option         "metamodes" "1280x1024 +0+0; nvidia-auto-select +0+0"
    Option "PixmapCacheSize" "3000000"
    Option "AllowSHMPixmaps" "0"
    Option "OnDemandVBlankInterrupts" "True"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection
Thanks in Advance...
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Old 10-26-08, 01:28 PM   #2
logan
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Default Re: 177.80 vsync problems

Are you using a compositing window manager or something like xcompmgr? They'll cause bad tearing in movie players and games...
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Old 10-26-08, 01:50 PM   #3
XVampireX
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Default Re: 177.80 vsync problems

No I'm not using...
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Old 11-01-08, 09:00 PM   #4
Megatog615
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Default Re: 177.80 vsync problems

I'm having terrible screen tearing issues as well. I'm using Ubuntu 8.10, default xorg.conf with a few nvidia tweaks(which don't fix or cause the tearing).

EVGA NVIDIA Geforce 8800 GTS 640MB, 64-bit Ubuntu 8.10, 177.80 drivers.
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Old 11-02-08, 04:49 AM   #5
jcornwall
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Default Re: 177.80 vsync problems

Quote:
Originally Posted by Megatog615 View Post
I'm having terrible screen tearing issues as well. I'm using Ubuntu 8.10, default xorg.conf with a few nvidia tweaks(which don't fix or cause the tearing)
If you're using Compiz (System -> Preferences -> Appearance -> Visual Effects is on) then turn install compizconfig-settings-manager and switch on Compiz's vsync in General Options -> Display Settings -> Sync to VBlank. Might need to switch off vsync options in nvidia-settings as well, I don't recall exactly.

That fixed tearing for me in video playback.
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Old 11-02-08, 02:52 PM   #6
Tillmann
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Default Re: 177.80 vsync problems

Hi,

same here. Horrible tearing with 177.80, but also with the previous driver release. Bug report log attached.

bye,
Tillmann
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Old 11-02-08, 02:55 PM   #7
Tillmann
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Default Re: 177.80 vsync problems

Hi,

ok here is the attachment

Is there anybody using 177.80 who actually DOESN'T have tearing problems with xv output? Excluding those people who don't know what tearing is and don't recognize it?

bye,
Till
Attached Files
File Type: zip nvidia-bug-report.zip (31.5 KB, 92 views)
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Old 11-02-08, 06:47 PM   #8
Big P
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Default Re: 177.80 vsync problems

Quote:
Originally Posted by Tillmann View Post
Hi,

ok here is the attachment

Is there anybody using 177.80 who actually DOESN'T have tearing problems with xv output? Excluding those people who don't know what tearing is and don't recognize it?

bye,
Till
Yes, everyone given the size of this thread. Try using twinview and choosing the monitor to sync to vblank on with nvidia-settings and see if you still suffer from the problem. Do you have the problem on both monitors? You have a few WW in your Xorg.0.log about the EDID reported from your Panasonic AE-90, but I don't know if that could be related or not.
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Old 11-03-08, 08:43 AM   #9
Tillmann
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Default Re: 177.80 vsync problems

Hi,

the problem occurs on both monitors.
I've tried everything before posting here: Disabling the second screen altogether, connecting the second screen via VGA instead of DVI, etc. Of course I've played with the vsync options in nvidia-control-panel, both for OpenGL and XV, on both displays.

Anyone using Ubuntu 8.10 (or another distribution with x.org 7.4) and not having problems?

bye,
Till
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Old 11-03-08, 10:15 AM   #10
jcornwall
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Default Re: 177.80 vsync problems

I don't have any problems because I followed the advice I posted above.

Tearing before, no tearing whatsoever afterwards.
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Old 11-03-08, 04:38 PM   #11
rtcm
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Default Re: 177.80 vsync problems

Maybe you're being hit by one of these issues I reported?

http://www.nvnews.net/vbulletin/showthread.php?t=119047
http://www.nvnews.net/vbulletin/showthread.php?t=121596

BTW, normal X11 drawing is *not* tear free. Unless you run under a OpenGL compositor with vblank syncing ON you *might* see tearing on your 2D window drawings like moving a window, scrolling etc.
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