[mythtv-users] Jerky panning all cards and resolutions. Thoughts on where to look?

[Lan Barnes]

Would these settings also apply to an old GeForce 4000?

On Fri, May 18, 2007 2:45 am, Anthony Hornby wrote:
> If you are using an NVIDIA card try this in /etc/X11/xorg.conf
>
> Section "Extensions"
>         Option      "Composite" "Disable"
> EndSection
>
> I did this and noticed an immediate improvement.
> NViIDIA 7600 AGP card, Athlon 3200+, 1GB DDR500 RAM, fedora core 6 and
> atrpms myth packages, NVIDIA 9755 driver, kernel deinterlacing and ffmpeg
> (standard) mpeg decoding.
> I have all the OpenGL sync options enabled and run 1080i resolution over
> DVI at 50Hz
>
> Hope this helps.
>
> Regards Anthony.
>
> ----- Original Message -----
> From: "William Munson" <william_munson at bellsouth.net>
> To: "Discussion about mythtv" <mythtv-users at mythtv.org>
> Sent: Friday, May 18, 2007 9:03:55 AM (GMT+0930) Australia/Darwin
> Subject: Re: [mythtv-users] Jerky panning all cards and
> resolutions.	Thoughts on where to look?
>
> Endaf Jones wrote:
>> On Mon, 2007-05-14 at 16:32 -0400, William Munson wrote:
>>
>>> Hi Listland,
>>>
>>> Since day one I have noticed that panning scenes have a distinct
>>> "gallop". This is independent of video mode, resolution, signal source,
>>> real time setting or rendering method. On about a 1/2 to 1 second cycle
>>> the pan will speed up and slow down in a repeating pattern. Nothing I
>>> have tried has fixed the problem.
>>>
>>
>> You may want to try changing the Kernel's "HZ" setting to 300 Hz.
>> This provides good even timing for both 50 and 60 Hz display systems.
>>
>> This was brought up in the mail list in the past few months.
>>
>
> Not sure I know enough about kernel settings to feel comfortable that I
> am not going to screw things up worse. Is there a good guide or has
> someone got a precompiled kernel for Ubuntu Edgy with the needed
> "fixes"? I know enough to recompile nvidia and the other manually
> installed packages, just not the kernel. I would really hate to end up
> with a non-bootable system. :(
>
> TIA,
> Bill
>
>
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>
> --
> Mr Anthony Hornby
> Associate Director, Resources and Technology
> Library and Information Access
> Charles Darwin University (CRICOS 300K)
> Phone: +61 8 8946 6011
> Email: anthony.hornby at cdu.edu.au.no-spam(remove the .no-spam)
>
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-- 
Lan Barnes

SCM Analyst              Linux Guy
Tcl/Tk Enthusiast        Biodiesel Brewer