[mythtv] Slow keyboard annoyance

Mark Buechler mark.buechler at gmail.com
Sun Feb 26 22:51:34 UTC 2006

Well, just to put in my two sense, I've been seeing these sorts of problems
for a long time now. I've always thought it was lirc but just yesterday I
ran ircat against all of my settings are they indeed do exactly as I expect.
My solution was to stop using MythTV's internal lirc support and go back to
using irxevent. It doesn't fix the problem entirely but almost.

My machine is an AMD 3200+ with an NVidia 5700 using one step from the
latest version NVidia drivers. This is a frontend machine only. My other
frontend is uses an MX440 on an AMD @ 1.3ghz seems to have no problems with

I'm not suggesting anyone look into this or that it's a problem with MythTV.
I'm only stating that I've seen it as well.

- Mark.

On 2/26/06, Allan Stirling <Dibblahmythml0015 at pendor.org> wrote:
> Lorenz Hahn wrote:
> > Isaac Richards wrote:
> >> On Sunday 26 February 2006 11:30, Lorenz Hahn wrote:
> >>
> >>> - It took 97 seconds and 100% CPU to iterate over 158 Recordings in
> "All
> >>>  Programs". If it's a graphic-card issue, why is the CPU at 100%?
> >>>  Shouldn't this be waiting for some DMA or other IO without CPU-usage?
> >>
> >> Because the X server (not myth) is falling back on completely
> unaccelerated
> >> code to do the drawing.  None of the graphics drawing code is in myth.
> > Hi,
> >
> > supposing there is no way to keep the X server from falling back to
> > unaccelerated code: why are the mythtv menues the only affected ones?
> > Even if the drawing code runs incredible long. Why does it affect the
> > processing of keystrokes? Let's say it's the X server. Again, I can't
> > reproduce this "bounce effect" in any other application.
> >
> I'm not sure if you are aware, but you are mailing the -developers mailing
> list.
> Since you're here and appear to be one of only two people that care about
> this
> issue, I would suggest that you read up on oprofile and find where the
> problem
> is - Myth code, QT, X11 or the driver for your card are all possibilities.
> You'll have to recompile all of the above with symbols then run an
> oprofile
> enabled kernel to track down the processor usage.
> Cheers,
> Allan.
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