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| CPU utilization for HDTV and xvmc setup? http://forum.linhes.org/viewtopic.php?f=2&t=13840 |
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| Author: | hurnik [ Thu Jan 25, 2007 8:39 pm ] |
| Post subject: | CPU utilization for HDTV and xvmc setup? |
I've got an Athlon 65 3200+ When watching live TV, mythfrontend is at about 40-50% CPU utilization (according to top) with an AirStar HD-5000 I'm using R5E50. Now, it seems that possibly XVMC may help things, but I'm a bit confused. The wiki seems to indicate that I have to compile and setup xvmc? Is this not "ready to go" in .20? I also see in the UPGRADE section that the path for xvmc is wrong (so I guess it also is wrong on a fresh install?) The wiki also indicates that the proprietary nvidia drivers aren't included? Or are they in R5E50? I guess there doesn't seem to be an "official" updated "how to" for xvmc. Do I need to download and install the proprietary nvidia drivers? Do I need to install/setup xvmc? Do i need to change the path? How do I verify what driver version I'm at? This is on a clean install of R5E50. |
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| Author: | hurnik [ Fri Jan 26, 2007 4:30 pm ] |
| Post subject: | |
I changed the path as per the upgrade docs, and restarted the back-end. Then I went into the Setup -> Playback and set it for xvmc. But if I do that, I get a "failed to reinit video" when trying to watch LiveTV. So for now I've disabled it. I'm guessing I do have to compile/setup xvmc then? |
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| Author: | the_manowar [ Fri Jan 26, 2007 5:21 pm ] |
| Post subject: | |
hurnik wrote: I changed the path as per the upgrade docs, and restarted the back-end.
Then I went into the Setup -> Playback and set it for xvmc. But if I do that, I get a "failed to reinit video" when trying to watch LiveTV. So for now I've disabled it. I'm guessing I do have to compile/setup xvmc then? No, xvmc is ready to go in R5E50 (apart from the incorrect path). Post a bit of info about your system, and perhaps include your /etc/X11/xorg.conf "Device" section. |
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| Author: | hurnik [ Fri Jan 26, 2007 5:53 pm ] |
| Post subject: | |
Thanks. Asus Pundit P1-AH1 Athlon64 3200+ 512 MB SDRAM (I'm getting another 512 MB tomorrow) Seagate SATA-160 drive AirStar HD-5000 card (that's what I'm watching now) PVR-150 card (I don't have it hooked up to the STB yet). Now, the Asus system has a Geforce 6150 (and it claims that Myth/Linux found the 6150 card). I believe this is an embedded AGP card with shared RAM. Right now I'm hooked up to a 15" LCD monitor (I didn't want to drag it down to the HDTV yet). "stock" everything in the R5E50 code (ie, no other patching, upgrading, etc.) The only thing extra I did was enable SAMBA. When I do a "top", mythfrontend is now sitting around 45-60% CPU utilization (liveTV) X.org is MAYBE (the highest I've ever seen it) at 3%. Usually it's 1% or less So now I'm not sure if Xvmc will help any. Here's my "device" section in the etc/x11/xorg.conf Code: Section "Device"
### Available Driver options are:- # sw_cursor is needed for some ati and radeon cards #Option "sw_cursor" #Option "hw_cursor" #Option "NoAccel" #Option "ShowCache" #Option "ShadowFB" #Option "UseFBDev" #Option "Rotate" Identifier "Card0" # The following line is auto-generated by KNOPPIX mkxf86config Driver "nvidia" VendorName "All" BoardName "All" # BusID "PCI:1:0:0" EndSection |
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| Author: | the_manowar [ Mon Jan 29, 2007 5:26 pm ] |
| Post subject: | |
Generally speaking, people seem to have seen an improvement in CPU utilisation after upgrading to the latest Nvidia drivers (http://www.mysettopbox.tv/phpBB2/viewtopic.php?t=13443&highlight=r5e50+nvidia), and then making some modifications to xorg.conf After upgrading to the 9746 drivers from the Nvidia website, my xorg.conf now has the following in the "Device" section: Code: Driver "nvidia" Option "UseEvents" "True" Option "NvAGP" "2" Option "RenderAccel" "1" The NvAGP parameter can be changed between 1-3 and alters which AGPGart the driver uses. These changes made a huge difference for me. hurnik wrote: Thanks.
Asus Pundit P1-AH1 Athlon64 3200+ 512 MB SDRAM (I'm getting another 512 MB tomorrow) Seagate SATA-160 drive AirStar HD-5000 card (that's what I'm watching now) PVR-150 card (I don't have it hooked up to the STB yet). Now, the Asus system has a Geforce 6150 (and it claims that Myth/Linux found the 6150 card). I believe this is an embedded AGP card with shared RAM. Right now I'm hooked up to a 15" LCD monitor (I didn't want to drag it down to the HDTV yet). "stock" everything in the R5E50 code (ie, no other patching, upgrading, etc.) The only thing extra I did was enable SAMBA. When I do a "top", mythfrontend is now sitting around 45-60% CPU utilization (liveTV) X.org is MAYBE (the highest I've ever seen it) at 3%. Usually it's 1% or less So now I'm not sure if Xvmc will help any. Here's my "device" section in the etc/x11/xorg.conf Code: Section "Device" ### Available Driver options are:- # sw_cursor is needed for some ati and radeon cards #Option "sw_cursor" #Option "hw_cursor" #Option "NoAccel" #Option "ShowCache" #Option "ShadowFB" #Option "UseFBDev" #Option "Rotate" Identifier "Card0" # The following line is auto-generated by KNOPPIX mkxf86config Driver "nvidia" VendorName "All" BoardName "All" # BusID "PCI:1:0:0" EndSection |
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| Author: | locutus42 [ Mon Jan 29, 2007 11:11 pm ] |
| Post subject: | /etc/modutils/aliases updates for Nvidia driver |
I found that doing the following in /etc/modutils/aliases right after the nvidia line, seems to help too. Code: options nvidia NVreg_EnableAGPSBA=1 NVreg_EnableAGPFW=1 NVreg_ReqAGPRate=8
I forgot where I found this but IIRC, all three were identified either from lspci or cat'ing something in /proc to know if the capabilities exists. My card is a 5200. |
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