[mythtv-users] Long delays with remote occasionally

Larry on the Dell Laptop larry at foxgulch.com
Fri Mar 6 15:13:47 UTC 2009

Josh Mastronarde wrote:
> On Fri, Nov 14, 2008 at 2:25 PM, C.T. Paterson <i.adore.my.64 at gmail.com> wrote:
>> 2008/11/10 C.T. Paterson <i.adore.my.64 at gmail.com>:
>>> Well this is all somewhat discouraging.  A hard drive failure prompted
>>> me to upgrade from mythbuntu 8.04 to mythbuntu 8.10 last week.  Since
>>> I've started using 8.10, I've been experiencing exactly the problem
>>> described.
>>> Keypresses on a PS2 keyboard also seem to be affected when it happens.
>>>  I've been tracking an Xorg spike in CPU usage that also came for free
>>> with the 8.10 upgrade, but I get the spike without command lag, so I'm
>>> not entirely convinced they're related.
>> The symptoms seem to have gone away.  I can tell you that I've made
>> the following changes:
>> "UseEvents" has been turned on in the xorg.conf
>> I changed the Video Playback Profile to "Slim" in the Playback setup options.
>> When I have some time, I'll do some more toggling to see if I can
>> isolate which (if either) of these things has an obvious impact.
> Update -- my symptoms also appear to have gone away by putting:
>     Option    "UseEvents" "True"
> in the "Device" section of /usr/X11/xorg.conf.
> I had finally gotten mythtv 0.21-fixes compiled from source, and was
> starting to add debug messages to everything I could find in the
> keypress handling path to figure out what was stalling, but this is
> much easier :-)  The above option does appear to have to do with the
> Nvidia driver stalling in a poll loop vs cleanly waiting to be called
> again, which makes sense that it could delay other things in the
> system.
> Josh
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My Mythbuntu 8.10 /etc/X11/xorg.conf shows:
Section "Device"
    Identifier     "Generic Video Card"
    Driver         "nvidia"
    Option         "DPI" "100x100"
    Option         "UseEvents" "1"
    Option         "AddARGBVisuals" "1"
    Option         "AddARGBGLXVisuals" "1"
    Option         "NoLogo" "1"

I'll try   changing to Option  "UseEvents" "True"
and see if that makes any difference.    You would think
that "1" would be interpreted as "True" but....

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