<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
		>
<channel>
	<title>Comments on: Solution to IVTV drivers: ivtv0 warning: ENC: (0) DMA Error 0&#215;0000000b ?</title>
	<atom:link href="http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/</link>
	<description>Random IT Stuff</description>
	<lastBuildDate>Tue, 31 Aug 2010 23:59:11 +0000</lastBuildDate>
	<generator>http://wordpress.org/?v=abc</generator>
	<sy:updatePeriod>hourly</sy:updatePeriod>
	<sy:updateFrequency>1</sy:updateFrequency>
		<item>
		<title>By: Jimmy</title>
		<link>http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/comment-page-1/#comment-4877</link>
		<dc:creator>Jimmy</dc:creator>
		<pubDate>Wed, 29 Nov 2006 16:40:29 +0000</pubDate>
		<guid isPermaLink="false">http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/#comment-4877</guid>
		<description>Looks like the 8.1 drivers are out looking at the change log below. there appears to have be serveral things that were broken that could relate to a lot of the problems we all have been seeing.

0.8.1 stable release
	- vbi test tool accepts -d1 as a shortcut for /dev/video1
	- added videodev2.h in utils since distros often are sloppy
	  in updating this file in a new kernel release.
	- some usability improvements to v4l2-ctl. Please note! Some
	  options have new names.
	- workaround VIDIOC_INT_S_REGISTER kernel bug (wrong ioctl value
	  in the v4l2-common.h header, this is fixed in 2.6.19).
	- saa717x fixes for Japanese cards.
	- reported pix format was V4L2_PIX_FMT_UYVY instead of V4L2_PIX_FMT_HM12.
	- added missing VIDIOC_ENUM_FMT ioctl.
	- added new IVTV_IOC_STOP ioctl (thanks to Martin Dauskardt )
	- added new IVTV_IOC_PAUSE_BLACK ioctl (thanks to Martin Dauskardt )
	  Similar to IVTV_IOC_PAUSE, but it turns the output black when paused.
	- Fix encoder pause/resume: these two were swapped.
	- Firmware loading has been made more robust
	  Thanks to Robert Hardy .
	- Firmware loading once again supports ppc.
	- Fix nasty bug when loading the init mpeg file
	  Thanks to Robert Hardy .
	- Enabling of newi2c support now depends on the presence of an IR-blaster.
	- No longer turn the digitizer off and on when changing channels, this
	  caused the tinny audio!
	- Fix VIDIOC_STREAMOFF support.
	- Detection of Hauppauge cards is now fully based on the tveeprom,
	  PCI IDs are ignored. Other cards still use the PCI ID for detection.
	- The detection of the first or second unit of a PVR500 is now done based
	  on the PCI &#039;slot&#039; used on the PVR500 card. The first unit has slot 8,
	  the second has slot 9.
	- Added IR-blaster detection, with thanks to Hauppauge&#039;s Steven Toth for
	  providing this information.
	- Fix initial PAL/SECAM/NTSC tuner defaults.
	- Fix driver cleanup in case an error occurs.
	- Fix VIDIOC_INT_S_AUDIO_ROUTING ioctl.
	- Ripped out dynamic buffer allocation: it never worked right and gave
	  some people a lot of grief.
	- Make i2c errors (missing i2c devices) more readable.

The failures to load the firmware on a reboot could be related to one of the following:
- Fix nasty bug when loading the init mpeg file
- Firmware loading has been made more robust

I for one have seen a lot of the errors related to this one.
- Ripped out dynamic buffer allocation: it never worked right and gave some people a lot of grief

So far so good with these drivers but I just upgraded to the 8.1 version. If you do upgrade remember to power off and wait about 30-40 sec before powering back on to give the card&#039;s memory time to completely clear.

Good Luck.</description>
		<content:encoded><![CDATA[<p>Looks like the 8.1 drivers are out looking at the change log below. there appears to have be serveral things that were broken that could relate to a lot of the problems we all have been seeing.</p>
<p>0.8.1 stable release<br />
	- vbi test tool accepts -d1 as a shortcut for /dev/video1<br />
	- added videodev2.h in utils since distros often are sloppy<br />
	  in updating this file in a new kernel release.<br />
	- some usability improvements to v4l2-ctl. Please note! Some<br />
	  options have new names.<br />
	- workaround VIDIOC_INT_S_REGISTER kernel bug (wrong ioctl value<br />
	  in the v4l2-common.h header, this is fixed in 2.6.19).<br />
	- saa717x fixes for Japanese cards.<br />
	- reported pix format was V4L2_PIX_FMT_UYVY instead of V4L2_PIX_FMT_HM12.<br />
	- added missing VIDIOC_ENUM_FMT ioctl.<br />
	- added new IVTV_IOC_STOP ioctl (thanks to Martin Dauskardt )<br />
	- added new IVTV_IOC_PAUSE_BLACK ioctl (thanks to Martin Dauskardt )<br />
	  Similar to IVTV_IOC_PAUSE, but it turns the output black when paused.<br />
	- Fix encoder pause/resume: these two were swapped.<br />
	- Firmware loading has been made more robust<br />
	  Thanks to Robert Hardy .<br />
	- Firmware loading once again supports ppc.<br />
	- Fix nasty bug when loading the init mpeg file<br />
	  Thanks to Robert Hardy .<br />
	- Enabling of newi2c support now depends on the presence of an IR-blaster.<br />
	- No longer turn the digitizer off and on when changing channels, this<br />
	  caused the tinny audio!<br />
	- Fix VIDIOC_STREAMOFF support.<br />
	- Detection of Hauppauge cards is now fully based on the tveeprom,<br />
	  PCI IDs are ignored. Other cards still use the PCI ID for detection.<br />
	- The detection of the first or second unit of a PVR500 is now done based<br />
	  on the PCI &#8217;slot&#8217; used on the PVR500 card. The first unit has slot 8,<br />
	  the second has slot 9.<br />
	- Added IR-blaster detection, with thanks to Hauppauge&#8217;s Steven Toth for<br />
	  providing this information.<br />
	- Fix initial PAL/SECAM/NTSC tuner defaults.<br />
	- Fix driver cleanup in case an error occurs.<br />
	- Fix VIDIOC_INT_S_AUDIO_ROUTING ioctl.<br />
	- Ripped out dynamic buffer allocation: it never worked right and gave<br />
	  some people a lot of grief.<br />
	- Make i2c errors (missing i2c devices) more readable.</p>
<p>The failures to load the firmware on a reboot could be related to one of the following:<br />
- Fix nasty bug when loading the init mpeg file<br />
- Firmware loading has been made more robust</p>
<p>I for one have seen a lot of the errors related to this one.<br />
- Ripped out dynamic buffer allocation: it never worked right and gave some people a lot of grief</p>
<p>So far so good with these drivers but I just upgraded to the 8.1 version. If you do upgrade remember to power off and wait about 30-40 sec before powering back on to give the card&#8217;s memory time to completely clear.</p>
<p>Good Luck.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Greg</title>
		<link>http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/comment-page-1/#comment-4439</link>
		<dc:creator>Greg</dc:creator>
		<pubDate>Wed, 15 Nov 2006 01:05:18 +0000</pubDate>
		<guid isPermaLink="false">http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/#comment-4439</guid>
		<description>I started having this problem /after/ trying to upgrade to the latest ivtv (0.7.1) under Gentoo (AMD64)  From the looks of things, the 0.7.1 upgrade also came with a new package for the firmware.

Long story short, when I shut down for 30 seconds and then rebooted, the problem went away (after having to reboot it every day for a week because the encoder stopped responding)  Anyway, it is such a frustrating problem, and I seem to have licked it, so give it a try if you run into this one.</description>
		<content:encoded><![CDATA[<p>I started having this problem /after/ trying to upgrade to the latest ivtv (0.7.1) under Gentoo (AMD64)  From the looks of things, the 0.7.1 upgrade also came with a new package for the firmware.</p>
<p>Long story short, when I shut down for 30 seconds and then rebooted, the problem went away (after having to reboot it every day for a week because the encoder stopped responding)  Anyway, it is such a frustrating problem, and I seem to have licked it, so give it a try if you run into this one.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Jimmy</title>
		<link>http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/comment-page-1/#comment-2358</link>
		<dc:creator>Jimmy</dc:creator>
		<pubDate>Thu, 26 Oct 2006 04:29:01 +0000</pubDate>
		<guid isPermaLink="false">http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/#comment-2358</guid>
		<description>I believe there has been work with the 7.1 drivers to resolve this DMA issue. As well as the 8 drivers. I have been useing the 7.1 for a while and have not seen a the problem manifest. But I have not been doing a lot of video capture work recently either.</description>
		<content:encoded><![CDATA[<p>I believe there has been work with the 7.1 drivers to resolve this DMA issue. As well as the 8 drivers. I have been useing the 7.1 for a while and have not seen a the problem manifest. But I have not been doing a lot of video capture work recently either.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: ToddF</title>
		<link>http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/comment-page-1/#comment-2016</link>
		<dc:creator>ToddF</dc:creator>
		<pubDate>Fri, 20 Oct 2006 12:15:51 +0000</pubDate>
		<guid isPermaLink="false">http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/#comment-2016</guid>
		<description>I seem to be hitting this problem everytime I record now. I&#039;ve created a wiki page on the offical ivtv wiki:
http://ivtvdriver.org/index.php/DMA

Maybe we can consolidate our information about this problem there.

Thanks,
-Todd</description>
		<content:encoded><![CDATA[<p>I seem to be hitting this problem everytime I record now. I&#8217;ve created a wiki page on the offical ivtv wiki:<br />
<a href="http://ivtvdriver.org/index.php/DMA" rel="nofollow">http://ivtvdriver.org/index.php/DMA</a></p>
<p>Maybe we can consolidate our information about this problem there.</p>
<p>Thanks,<br />
-Todd</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Steven Ellis</title>
		<link>http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/comment-page-1/#comment-897</link>
		<dc:creator>Steven Ellis</dc:creator>
		<pubDate>Mon, 14 Aug 2006 08:03:12 +0000</pubDate>
		<guid isPermaLink="false">http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/#comment-897</guid>
		<description>Got the same DMA issues on my box. Usually happens if I delete a very large file during a recording, like an old 2h video of around 4GB. Once it happens I need to reboot to fix it.

I&#039;ve been playing with various different firmware versions as some appear to work a bit better meaning it becomes a lot harder to cause the problem. Hope to send a report to the IVTV mailing list soon.

Oh i&#039;m running a 32Bit Athlon 64 3000+ with Knoppmyth</description>
		<content:encoded><![CDATA[<p>Got the same DMA issues on my box. Usually happens if I delete a very large file during a recording, like an old 2h video of around 4GB. Once it happens I need to reboot to fix it.</p>
<p>I&#8217;ve been playing with various different firmware versions as some appear to work a bit better meaning it becomes a lot harder to cause the problem. Hope to send a report to the IVTV mailing list soon.</p>
<p>Oh i&#8217;m running a 32Bit Athlon 64 3000+ with Knoppmyth</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Jimmy</title>
		<link>http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/comment-page-1/#comment-843</link>
		<dc:creator>Jimmy</dc:creator>
		<pubDate>Thu, 10 Aug 2006 03:31:12 +0000</pubDate>
		<guid isPermaLink="false">http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/#comment-843</guid>
		<description>I did a fresh install of FC5 64bit.

I switched to using the firmware and drivers as provide off of atrpms. 

Seems to have settled down quite a bit. The weird part is that I did try to compile from source to install the drivers that way. Boy, did I ever have problems with that.

Other, weirdness if I boot into windoze, and do a warm boot back into linux the card will quite working. I have to shutdown and power down to get back into linux with a working pvr-250.</description>
		<content:encoded><![CDATA[<p>I did a fresh install of FC5 64bit.</p>
<p>I switched to using the firmware and drivers as provide off of atrpms. </p>
<p>Seems to have settled down quite a bit. The weird part is that I did try to compile from source to install the drivers that way. Boy, did I ever have problems with that.</p>
<p>Other, weirdness if I boot into windoze, and do a warm boot back into linux the card will quite working. I have to shutdown and power down to get back into linux with a working pvr-250.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: dreadhead</title>
		<link>http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/comment-page-1/#comment-612</link>
		<dc:creator>dreadhead</dc:creator>
		<pubDate>Mon, 24 Jul 2006 14:04:06 +0000</pubDate>
		<guid isPermaLink="false">http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/#comment-612</guid>
		<description>Hi!

I&#039;ve put the old HD from my old MythTV installation (32Bit) into this PC and tested this for 3 days. It was running perfectly undtil I the HD crashed :(

So I thougt this is the solution to our Problem and installed a fresh 32 Bit install to the new HD. Unfortunately also here I got the errors and the crashes.

But I think, since old installation was running 3 Days whitout 1 DMA-Error this is not a Hardware-related thing.

I will keep on trying...

Anyone of you has new informations about this?</description>
		<content:encoded><![CDATA[<p>Hi!</p>
<p>I&#8217;ve put the old HD from my old MythTV installation (32Bit) into this PC and tested this for 3 days. It was running perfectly undtil I the HD crashed <img src='http://www.morph3ous.net/wp-includes/images/smilies/icon_sad.gif' alt=':(' class='wp-smiley' /> </p>
<p>So I thougt this is the solution to our Problem and installed a fresh 32 Bit install to the new HD. Unfortunately also here I got the errors and the crashes.</p>
<p>But I think, since old installation was running 3 Days whitout 1 DMA-Error this is not a Hardware-related thing.</p>
<p>I will keep on trying&#8230;</p>
<p>Anyone of you has new informations about this?</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: dreadhead</title>
		<link>http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/comment-page-1/#comment-476</link>
		<dc:creator>dreadhead</dc:creator>
		<pubDate>Sat, 15 Jul 2006 16:09:52 +0000</pubDate>
		<guid isPermaLink="false">http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/#comment-476</guid>
		<description>Hi. I&#039;m having the same same problems. Just tried the pci=routeirq kernel option. Doesn&#039;t help. 15 minutes after the reboot I got the first DMA error.

Is everyone here running his system in 64 Bit mode? I&#039;m thinking about recompiling everything for 32Bit. Anyone knows if this is worth a try?

dreadhead</description>
		<content:encoded><![CDATA[<p>Hi. I&#8217;m having the same same problems. Just tried the pci=routeirq kernel option. Doesn&#8217;t help. 15 minutes after the reboot I got the first DMA error.</p>
<p>Is everyone here running his system in 64 Bit mode? I&#8217;m thinking about recompiling everything for 32Bit. Anyone knows if this is worth a try?</p>
<p>dreadhead</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: ToddF</title>
		<link>http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/comment-page-1/#comment-433</link>
		<dc:creator>ToddF</dc:creator>
		<pubDate>Mon, 10 Jul 2006 19:26:28 +0000</pubDate>
		<guid isPermaLink="false">http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/#comment-433</guid>
		<description>I&#039;m also running a AMD64 Gentoo Mythtv Box with 2 tuners and am seeing this error in my dmesg. I&#039;ve upgraded to 2.6.16 and ivtv 0.6.3 last weekend and just starting seeing this. I&#039;ll try to pci=routeirq later this week. Also, my box has been up for about 2 days and I think only one or two recorded programs.

Also, I noticed some system lockups when doing a channel scan in the mythtv-setup which really worries me. I&#039;m going to monitor the box closely over the next couple of weeks to ensure there is no lockups under normal recording operation.

Let me know if you need any further information from me to help debug this problem.

-Todd</description>
		<content:encoded><![CDATA[<p>I&#8217;m also running a AMD64 Gentoo Mythtv Box with 2 tuners and am seeing this error in my dmesg. I&#8217;ve upgraded to 2.6.16 and ivtv 0.6.3 last weekend and just starting seeing this. I&#8217;ll try to pci=routeirq later this week. Also, my box has been up for about 2 days and I think only one or two recorded programs.</p>
<p>Also, I noticed some system lockups when doing a channel scan in the mythtv-setup which really worries me. I&#8217;m going to monitor the box closely over the next couple of weeks to ensure there is no lockups under normal recording operation.</p>
<p>Let me know if you need any further information from me to help debug this problem.</p>
<p>-Todd</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Brian</title>
		<link>http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/comment-page-1/#comment-403</link>
		<dc:creator>Brian</dc:creator>
		<pubDate>Fri, 30 Jun 2006 01:27:27 +0000</pubDate>
		<guid isPermaLink="false">http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/#comment-403</guid>
		<description>Jimmy,

I&#039;ve been having some minor problems now, but it&#039;s much improved since making the changes that I posted here in the blog. I am going to try the pci=routeirq kernel boot parameter to see if it helps.

Gentoo has ivtv-0.6.3 and a slightly newer version of the MythTV 0.19 ebuild. I am going to update those first, give it a couple of days, and then try with pci=routeirq.

I really appreciate all your contributions here.

Brian</description>
		<content:encoded><![CDATA[<p>Jimmy,</p>
<p>I&#8217;ve been having some minor problems now, but it&#8217;s much improved since making the changes that I posted here in the blog. I am going to try the pci=routeirq kernel boot parameter to see if it helps.</p>
<p>Gentoo has ivtv-0.6.3 and a slightly newer version of the MythTV 0.19 ebuild. I am going to update those first, give it a couple of days, and then try with pci=routeirq.</p>
<p>I really appreciate all your contributions here.</p>
<p>Brian</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Jimmy</title>
		<link>http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/comment-page-1/#comment-395</link>
		<dc:creator>Jimmy</dc:creator>
		<pubDate>Tue, 27 Jun 2006 23:02:04 +0000</pubDate>
		<guid isPermaLink="false">http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/#comment-395</guid>
		<description>Not sure if this is a fix or not. but I have captured serveral movies now and have not recieved the dreaded
vtv0 warning: ENC: (0) DMA Error 0×0000000b
error messages. i am getting the following when the recording ends:
ivtv0 warning: ENC: EOS took 476 ms to occur. However, this does not seem to be a problem as far as the recording is concerned, ever thing looks good.

I am running the 2.6.16 kernel on FC5 using the 6.3 drivers. Edited /etc/grub.conf and added the following option to the kernel boot parameters:
pci=routeirq
Would like to know if this helps anyone else or if this seems to be a solution.</description>
		<content:encoded><![CDATA[<p>Not sure if this is a fix or not. but I have captured serveral movies now and have not recieved the dreaded<br />
vtv0 warning: ENC: (0) DMA Error 0×0000000b<br />
error messages. i am getting the following when the recording ends:<br />
ivtv0 warning: ENC: EOS took 476 ms to occur. However, this does not seem to be a problem as far as the recording is concerned, ever thing looks good.</p>
<p>I am running the 2.6.16 kernel on FC5 using the 6.3 drivers. Edited /etc/grub.conf and added the following option to the kernel boot parameters:<br />
pci=routeirq<br />
Would like to know if this helps anyone else or if this seems to be a solution.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Jimmy</title>
		<link>http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/comment-page-1/#comment-385</link>
		<dc:creator>Jimmy</dc:creator>
		<pubDate>Sun, 25 Jun 2006 14:31:50 +0000</pubDate>
		<guid isPermaLink="false">http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/#comment-385</guid>
		<description>Okay, never mind a complete waste of time. All that does is reduce the likely hood of have a DMA that can corrupt the file. It does not get rid of them. I will keep working on it. This seems to be hardware related.</description>
		<content:encoded><![CDATA[<p>Okay, never mind a complete waste of time. All that does is reduce the likely hood of have a DMA that can corrupt the file. It does not get rid of them. I will keep working on it. This seems to be hardware related.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Jimmy</title>
		<link>http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/comment-page-1/#comment-381</link>
		<dc:creator>Jimmy</dc:creator>
		<pubDate>Sat, 24 Jun 2006 02:59:16 +0000</pubDate>
		<guid isPermaLink="false">http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/#comment-381</guid>
		<description>Also cool and quite is disabled in my bios.</description>
		<content:encoded><![CDATA[<p>Also cool and quite is disabled in my bios.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Jimmy</title>
		<link>http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/comment-page-1/#comment-380</link>
		<dc:creator>Jimmy</dc:creator>
		<pubDate>Sat, 24 Jun 2006 02:53:21 +0000</pubDate>
		<guid isPermaLink="false">http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/#comment-380</guid>
		<description>I have been seeing the same exact issues with my KT800 MSI motherboard. I made the following changes, which so far have seemed to have resolved the problem.

I changed my bios setting to match those recommended on NVIDIA&#039;s website.

http://nvidia.custhelp.com/cgi-bin/nvidia.cfg/php/enduser/std_adp.php?p_faqid=805&amp;p_created=1141634762&amp;p_sid=u9RQCPai&amp;p_lva=&amp;p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9MTcmcF9wcm9kcz0wJnBfY2F0cz0wJnBfcHY9JnBfY3Y9JnBfc2VhcmNoX3R5cGU9YW5zd2Vycy5zZWFyY2hfZm5sJnBfcGFnZT0xJnBfc2VhcmNoX3RleHQ9Qmlvcw**&amp;p_li=&amp;p_topview=1

I the only one that applied to my motherboard was PCI Latency Timer=128.

That got rid of the hangs and corrupted video but I was still getting the 
ivtv0 warning: ENC: (0) DMA Error 0×0000000b
Error every once in a while.
I downloaded the latest firmware from ivtv sites. Copied it over the atrpms firmware. And powered down my PC. Once I powered up, it seems to have gone away, at least for now. I will update if I see it again.

This really looks like a DMA conflict of some kind occuring at the hardware level. It had gotten so bad that it messed up the all DMA to my systems. Making my harddrive screw up so that it was corrupting my filesystems and generating write errors in dmesg output. I shut the system down. Download the maxtor diagnostic iso. Ran the Adv. Diags. they reported no problems with the drive. Boot up the system again and the dma errors were completely gone. Everything was happy including me, since I though I had a bad drive.</description>
		<content:encoded><![CDATA[<p>I have been seeing the same exact issues with my KT800 MSI motherboard. I made the following changes, which so far have seemed to have resolved the problem.</p>
<p>I changed my bios setting to match those recommended on NVIDIA&#8217;s website.</p>
<p><a href="http://nvidia.custhelp.com/cgi-bin/nvidia.cfg/php/enduser/std_adp.php?p_faqid=805&amp;p_created=1141634762&amp;p_sid=u9RQCPai&amp;p_lva=&amp;p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9MTcmcF9wcm9kcz0wJnBfY2F0cz0wJnBfcHY9JnBfY3Y9JnBfc2VhcmNoX3R5cGU9YW5zd2Vycy5zZWFyY2hfZm5sJnBfcGFnZT0xJnBfc2VhcmNoX3RleHQ9Qmlvcw" rel="nofollow">http://nvidia.custhelp.com/cgi-bin/nvidia.cfg/php/enduser/std_adp.php?p_faqid=805&amp;p_created=1141634762&amp;p_sid=u9RQCPai&amp;p_lva=&amp;p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9MTcmcF9wcm9kcz0wJnBfY2F0cz0wJnBfcHY9JnBfY3Y9JnBfc2VhcmNoX3R5cGU9YW5zd2Vycy5zZWFyY2hfZm5sJnBfcGFnZT0xJnBfc2VhcmNoX3RleHQ9Qmlvcw</a>**&amp;p_li=&amp;p_topview=1</p>
<p>I the only one that applied to my motherboard was PCI Latency Timer=128.</p>
<p>That got rid of the hangs and corrupted video but I was still getting the<br />
ivtv0 warning: ENC: (0) DMA Error 0×0000000b<br />
Error every once in a while.<br />
I downloaded the latest firmware from ivtv sites. Copied it over the atrpms firmware. And powered down my PC. Once I powered up, it seems to have gone away, at least for now. I will update if I see it again.</p>
<p>This really looks like a DMA conflict of some kind occuring at the hardware level. It had gotten so bad that it messed up the all DMA to my systems. Making my harddrive screw up so that it was corrupting my filesystems and generating write errors in dmesg output. I shut the system down. Download the maxtor diagnostic iso. Ran the Adv. Diags. they reported no problems with the drive. Boot up the system again and the dma errors were completely gone. Everything was happy including me, since I though I had a bad drive.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Brian</title>
		<link>http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/comment-page-1/#comment-343</link>
		<dc:creator>Brian</dc:creator>
		<pubDate>Sat, 17 Jun 2006 04:11:53 +0000</pubDate>
		<guid isPermaLink="false">http://www.morph3ous.net/2006/06/16/solution-to-ivtv-drivers-ivtv0-warning-enc-0-dma-error-0x0000000b/#comment-343</guid>
		<description>Mr. Lewis,

You&#039;re right, it may just be luck at the moment. I&#039;d like to hope not, but I honestly do not know.

The good news is that so far the system has been up for almost 21 hours. I still only have the 2 errors. Both tuners seem to be working still. I have never gone this long without at least one of the tuners ceasing to function. I have my fingers crossed that it will continue to work.

Last time I thought I had found a solution by enabling AHCI. I then thought it had gotten at least a little better after changing the PCI latency settings of various cards. In the end AHCI had no effect, and the latency settings may have helped only slightly.

This is the longest that the system has been running properly. I hope it is not just luck, as I would like to help the community narrow down the cause of this error. I unfortunately am not skilled enough to read C code at the moment. One of these days...</description>
		<content:encoded><![CDATA[<p>Mr. Lewis,</p>
<p>You&#8217;re right, it may just be luck at the moment. I&#8217;d like to hope not, but I honestly do not know.</p>
<p>The good news is that so far the system has been up for almost 21 hours. I still only have the 2 errors. Both tuners seem to be working still. I have never gone this long without at least one of the tuners ceasing to function. I have my fingers crossed that it will continue to work.</p>
<p>Last time I thought I had found a solution by enabling AHCI. I then thought it had gotten at least a little better after changing the PCI latency settings of various cards. In the end AHCI had no effect, and the latency settings may have helped only slightly.</p>
<p>This is the longest that the system has been running properly. I hope it is not just luck, as I would like to help the community narrow down the cause of this error. I unfortunately am not skilled enough to read C code at the moment. One of these days&#8230;</p>
]]></content:encoded>
	</item>
</channel>
</rss>
