Author Topic: [0710] Bad performance with nVidia GeForce 8300 on 1080p  (Read 1667 times)

nite_man

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[0710] Bad performance with nVidia GeForce 8300 on 1080p
« on: January 20, 2009, 09:41:59 am »
Hi,

Finally I assembled my new hybrid core. I installed the the latest nVidia drviers (180.22). The core is connected to TV via HDMI cable. The resolution is 1080p/60GHz on the alpha blended UI2.

I found that even screen saver shows photos with short time freezing which happens periodically. The same issue with playback video (standard or HD). The processor is loaded on 30% maximum. Also I didn't see any  peaks there.

Any suggestion how to improve GE 8300 performance?

TIA
Michael Stepanov,
My setup: http://wiki.linuxmce.org/index.php/User:Nite_man#New_setup
Russian LinuxMCE community: http://linuxmce.ru

Zaerc

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Re: [0710] Bad performance with nVidia GeForce 8300 on 1080p
« Reply #1 on: January 20, 2009, 03:44:24 pm »
Hi,

Finally I assembled my new hybrid core. I installed the the latest nVidia drviers (180.22). The core is connected to TV via HDMI cable. The resolution is 1080p/60GHz on the alpha blended UI2.

I found that even screen saver shows photos with short time freezing which happens periodically. The same issue with playback video (standard or HD). The processor is loaded on 30% maximum. Also I didn't see any  peaks there.

Any suggestion how to improve GE 8300 performance?

TIA

Sure, just download the source of the drivers and... oh wait you said nvidia eh?

(Sorry I know that doesn't help, but there isn't much we can do about their shitty drivers, and you probably know more about tweaking them then I do.)
"Change is inevitable. Progress is optional."
-- Anonymous


nite_man

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Re: [0710] Bad performance with nVidia GeForce 8300 on 1080p
« Reply #2 on: January 20, 2009, 03:49:19 pm »
I supposed that installation of nVidia drivers should be enough to get a good performance on 1080p. But it isn't true :) Will dig it more tonight. Probably I should run nVidia config utility in KDE and set some options.
Michael Stepanov,
My setup: http://wiki.linuxmce.org/index.php/User:Nite_man#New_setup
Russian LinuxMCE community: http://linuxmce.ru

Itsik

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Re: [0710] Bad performance with nVidia GeForce 8300 on 1080p
« Reply #3 on: January 20, 2009, 04:16:15 pm »
I'd lose the alpha blending. Use overlay UI and the video performance will improve noticebly


Itsik

nite_man

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Re: [0710] Bad performance with nVidia GeForce 8300 on 1080p
« Reply #4 on: January 20, 2009, 04:40:33 pm »
I'd lose the alpha blending. Use overlay UI and the video performance will improve noticebly


Itsik
Thanks, Itsik. Will try it as well. Especially as the alpha blending is not a top priority :)
Michael Stepanov,
My setup: http://wiki.linuxmce.org/index.php/User:Nite_man#New_setup
Russian LinuxMCE community: http://linuxmce.ru

cirion

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Re: [0710] Bad performance with nVidia GeForce 8300 on 1080p
« Reply #5 on: January 20, 2009, 05:26:35 pm »
Have you tried the suggestions in this wiki?
http://wiki.linuxmce.org/index.php/Nvidia_Card_Tweaks_For_Better_MythTV_and_UI_Performance

Works for me, but Alpha Blending still has some tearing. I us the Overlay UI.

I also have set the "Hardware Acceleration" in webadmin to "OpenGL", and the "Deinterlace Quality" to "High".

I am now using this driver:
http://www.nvidia.com/object/linux_display_ia32_180.22.html

I had to manually remove the legacy drivers as described in point 5. in the Nvidia section in this wiki:
http://wiki.linuxmce.org/index.php/Display_Drivers

nite_man

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Re: [0710] Bad performance with nVidia GeForce 8300 on 1080p
« Reply #6 on: January 20, 2009, 09:38:15 pm »
Thanks a lot! Disabling alpha blending solved problem. Also link to the wiki article http://wiki.linuxmce.org/index.php/Nvidia_Card_Tweaks_For_Better_MythTV_and_UI_Performance is very useful!
Michael Stepanov,
My setup: http://wiki.linuxmce.org/index.php/User:Nite_man#New_setup
Russian LinuxMCE community: http://linuxmce.ru