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Old 03-29-09, 05:45 PM   #1
pavlinux
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Default [ FIXED ] Linux 2.6.29, nvidia 177.82-180.41 = glxgears: 3 FPS

Geforce 7400 Go
linux-2.6.29
nvidia - 177.82 and all 180.xx drivers

glxgears bench say no more then 5 FPS



P.S. 2.6.28 and older = glxgears: 5500 fps

Last edited by pavlinux; 04-02-09 at 10:56 PM.
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Old 03-29-09, 06:11 PM   #2
Ralph
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Default Re: Linux 2.6.29, nvidia 177.82-180.41 = glxgears: 3 FPS

Is "direct rendering enabled"?

If you have "direct rendering: yes", edit /var/log/dmesg and search for messages like this:
Code:
 IRQ XX IRQF_DISABLED is not guaranteed on shared IRQs
Many users have reported problems with 2.6.29 and IRQF SHARED/DISABLED; in some cases, this problem affects nVidia cards too.

In my case, after I have switched to 2.6.29, I get the message (at boot):
Code:
IRQ 18 SAA7133: IRQF_DISABLED is not guaranteed on shared IRQs
and my DVB-T card does not work!
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Old 03-29-09, 06:35 PM   #3
kernelOfTruth
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Default Re: Linux 2.6.29, nvidia 177.82-180.41 = glxgears: 3 FPS

Quote:
Originally Posted by Ralph View Post
Is "direct rendering enabled"?

If you have "direct rendering: yes", edit /var/log/dmesg and search for messages like this:
Code:
 IRQ XX IRQF_DISABLED is not guaranteed on shared IRQs
Many users have reported problems with 2.6.29 and IRQF SHARED/DISABLED; in some cases, this problem affects nVidia cards too.

In my case, after I have switched to 2.6.29, I get the message (at boot):
Code:
IRQ 18 SAA7133: IRQF_DISABLED is not guaranteed on shared IRQs
and my DVB-T card does not work!
this isn't really a problem: 180.29 works fine for me and I still get those messages,

@pavlinux:

you tried booting it up with nopat ?
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Old 03-29-09, 08:06 PM   #4
thefirstm
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Default Re: Linux 2.6.29, nvidia 177.82-180.41 = glxgears: 3 FPS

I get that message, too, and I do not have the problem you mention here. Rendering performance is normal.
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Old 03-30-09, 03:39 AM   #5
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Default Re: Linux 2.6.29, nvidia 177.82-180.41 = glxgears: 3 FPS

Quote:
Originally Posted by pavlinux View Post
Geforce 7400 Go
linux-2.6.29
nvidia - 177.82 and all 180.xx drivers

glxgears bench say no more then 5 FPS



P.S. 2.6.28 and older = glxgears: 5500 fps
Yes same, i read msg in other forum:
http://forums.nvidia.com/index.php?showtopic=93192

..and now use driver 96.43.11 and i'm happy all work ok (good 3D) and no corruption and/or freeze
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Old 03-30-09, 04:15 AM   #6
spion
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Default Re: Linux 2.6.29, nvidia 177.82-180.41 = glxgears: 3 FPS

Quote:
Originally Posted by pavlinux View Post
Geforce 7400 Go
linux-2.6.29
nvidia - 177.82 and all 180.xx drivers

glxgears bench say no more then 5 FPS



P.S. 2.6.28 and older = glxgears: 5500 fps
this post is BULL****.


Does it affect some realworld applications too or is glxgears really the only 3d application you run? in that case 5fps would be ok, its not like a lot is changing when you get 4127864812638761361945215fps in GLXGEARS
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Old 03-30-09, 04:47 AM   #7
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Default Re: Linux 2.6.29, nvidia 177.82-180.41 = glxgears: 3 FPS

Quote:
Originally Posted by spion View Post
this post is BULL****.

Does it affect some realworld applications too or is glxgears really the only 3d application you run?
Wait a second.
You'd better think (and maybe google) before you insult someone.
The glxgears performance drop may be a problem if too big. See this article:

Quote:
So the only thing glxgears really tests is the performance of glXSwapBuffers() - basically, how fast we can push render buffers into the card. This operation is slower with DRI2, but - roughly speaking - unless it was an order of magnitude slower (e.g. glxgears drops from 1000FPS to under 100FPS) it wouldn't make any real difference.
On the other hand, use some other benchmark like e.g. the unigine demos.

Edit: but first try disabling the X86_PAT in the kernel (see nopat above).
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Old 03-30-09, 01:10 PM   #8
kernelOfTruth
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Default Re: Linux 2.6.29, nvidia 177.82-180.41 = glxgears: 3 FPS

Glxgears is not a Benchmark (link inside)
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Old 03-30-09, 05:23 PM   #9
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Default Re: Linux 2.6.29, nvidia 177.82-180.41 = glxgears: 3 FPS

Quote:
Originally Posted by kernelOfTruth View Post
Glxgears is not a Benchmark (link inside)

Same, slow graphics in: ET Quake Wars, Unigine Trоpic Demo, and all OpenGL application.
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Old 03-30-09, 05:31 PM   #10
pavlinux
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Default Re: Linux 2.6.29, nvidia 177.82-180.41 = glxgears: 3 FPS

I am find problem, it's really Page Attribute Translations, а.к.а. CONFIG_X86_PAT in kernel.

BUT is solve problem in x86_32!!!
Under AMD64 (x86_64), CONFIG_X86_PAT enable, and no exist slowdown GL graphics.
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Old 04-02-09, 10:58 PM   #11
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Default Re: Linux 2.6.29, nvidia 177.82-180.41 = glxgears: 3 FPS

Today's linux kernel patch 2.6.29.1 fixed this bug.

Now, you try with CONFIG_X86_PAT
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