[mythtv-users] any one using Nvidia 8774 driver

[Calin Brabandt]

>Date: Thu, 7 Sep 2006 15:51:47 -0400
>From: "Matt Emmott" <memmott at gmail.com>
>Subject: Re: [mythtv-users] any one using Nvidia 8774
driver
>To: "Discussion about mythtv"
<mythtv-users at mythtv.org>
>Message-ID:
>      
<dce194280609071251i5f9c5fa9ide3da5590b358f5e at mail.gmail.com>
>Content-Type: text/plain; charset=ISO-8859-1;
format=flowed
>
>On 9/7/06, Calin Brabandt <cbrabandt at yahoo.com>
wrote:
>> Paul <mylists at wilsononline.id.au> says:
>> > I want to reduce the "tearing" effect for HDTV
>> output and therefor
>> > hoping to upgrade to the latest Nvidia Driver to
see
>> if if fixes or
>> > improves this issue.
>>
>> I updated my kernel to 2.6.17-1.2174_FC5, Myth from
>> atrpms, and my Nvidia driver to 8774 from Livna.  I
>> had to update my XvMC lib link in /usr/lib
manually:
>>
>> sudo ln -s
/usr/lib/nvidia/libXvMCNVIDIA.so.1.0.8774
>> libXvMC.so
>>
>> Unfortunately, the video locks after a few second
of
>> playback during "live" viewing or previously
recorded
>> shows.
>>
>> ..
>> ......
>> .............
>>
>> 2006-09-07 10:58:43.751 NVP: Waiting for
prebuffer..
>> 569 DDAdLDDD
>> 2006-09-07 10:58:43.768 NVP: prebuffering pause
>> 2006-09-07 10:58:43.768 NVP: Waiting for
prebuffer..
>> 570 DDAdLDDD
>> 2006-09-07 10:58:43.784 NVP: prebuffering pause
>> 2006-09-07 10:58:43.784 NVP: Waiting for
prebuffer..
>> 571 DDAdLDDD
>> 2006-09-07 10:58:43.801 NVP: prebuffering pause
>> 2006-09-07 10:58:43.801 NVP: Waiting for
prebuffer..
>> 572 DDAdLDDD
>> ..........
>> .....
>> ..
>>
>> I haven't had much time to work on it, but I'd just
as
>> soon return to 8762 as it was working well but
simply
>> running NVIDIA-Linux-x86-1.0-8762-pkg1.run did not
set
>> things back! :(
>>
>> I advise caution WRT 8774.  I guess the atrpms 8774
>> package is out too but, like I said, I haven't had
>> much time to play with it.

>>
>> -Cal
>>
>>
>>
>I believe you'll want to install the 8774 drivers
first by running the
>.run command with the --uninstall switch. This worked
for me when
>going from the legacy drivers to the new ones.
>
>- Matt

Thanks, Matt.  I think I tried it with and without the
--uninstall switch and with and without removing the
livna kernel mod 8774 packages first.  I'll try it
again.

Once I put dri back into my xorg.conf file, 8774
started to work---sorta.  It freezes or skips if Sync
to VBlank is enabled in either OpenGL or X Server
XVideo settings.  This was not the case with 8762.  I
didn't notice any obvious tearing but I need to view
more channels more closely before I draw any
conclusions about running 8774 without Sync to VBlank
mode.

-Cal

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