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Ratpoison on dedicated frontend

 

 

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nowhere at cox

Oct 9, 2006, 11:39 PM

Post #1 of 14 (7343 views)
Permalink
Ratpoison on dedicated frontend

Hi Everyone!

Just finished installing Fedora & MythTV via Jarod's guide on the following
(spare parts) machine.
Celeron 333MHz overclocked to 550MHz
262M RAM (every leftover stick I had)
10G IDE harddrive
Nvidia FX 5200
SB Live
DLink 108 wireless with madwifi drivers.

Everything is "working" except that every so often, playback will pause for
about a second then continue. It's pretty long between pauses, on the order
of 10 minutes or so. However, if I wake up in the middle of the night and
the video is still playing after a few hours, it is very choppy.

I don't think it is the wireless since my standalone backend/front end is
networked through a 102.11b gaming adapter and I get nice smooth video on my
vmware virtual machine running on an Athlon 64.

My guess is that the machine is just barely too slow so I decided to try
ratpoison to free up some resources. I yum installed it, selected it from
custom session, clicked to make it default and setup a ~mythtv/.xsession
file just as it says here

http://www.gossamer-threads.com/lists/mythtv/users/98133?nohighlight=1#98133

However I don't think this file is every executed as mythfrontend never
starts. So I RTFM at ratpoison site (which doesn't mention anything about
how to install ratpoison btw). and decided to create a .ratpoisonrc file
too. Doesnt seem that this gets executed either since frontend still doesnt
start up. Also when I ctrl-t or ctrl-c, no terminal pops up. I obviously
don't know anything about ratpoison and the documentation is horrible unless
you already know how to use it.

Anyone have any idea what boneheaded thing I'm doing wrong ;)

One other thing that is weird is that every so often during playback, it
will just quit out of playback back to the mythtv gui menus...

Thanks for any help!
Eric


brough at baremetalsoft

Oct 10, 2006, 12:15 AM

Post #2 of 14 (7189 views)
Permalink
Re: Ratpoison on dedicated frontend [In reply to]

Nowhere wrote:
> My guess is that the machine is just barely too slow so I decided to
> try ratpoison to free up some resources. I yum installed it, selected
> it from custom session, clicked to make it default and setup a
> ~mythtv/.xsession file just as it says here
>
> http://www.gossamer-threads.com/lists/mythtv/users/98133?nohighlight=1#98133
>
> However I don't think this file is every executed as mythfrontend
> never starts. So I RTFM at ratpoison site (which doesn't mention
> anything about how to install ratpoison btw). and decided to create a
> .ratpoisonrc file too. Doesnt seem that this gets executed either
> since frontend still doesnt start up. Also when I ctrl-t or ctrl-c, no
> terminal pops up. I obviously don't know anything about ratpoison and
> the documentation is horrible unless you already know how to use it.
>

Hi Eric,

I find ratpoison works really well with myth. I use ~/.xinitrc to start
ratpoison:

exec /usr/bin/ratpoison

This does run .ratpoisonrc when it starts. Mine contains this:

set bargravity south
exec ~/start-irxevent
exec ~/start-mtd
exec ~/start-mythbackend

The various start-* commands are just shell scripts which launch the
programs in question with appropriate command line options (mythbackend
in turn starts mythwelcome and mythfrontend). You need "Ctrl-T" then "C"
to open a console window.

Cheers,
Leighton

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philledwards at gmail

Oct 10, 2006, 4:02 AM

Post #3 of 14 (7204 views)
Permalink
Re: Ratpoison on dedicated frontend [In reply to]

> My guess is that the machine is just barely too slow so I decided to try
> ratpoison to free up some resources. I yum installed it, selected it from
> custom session, clicked to make it default and setup a ~mythtv/.xsession
> file just as it says here
>
> http://www.gossamer-threads.com/lists/mythtv/users/98133?nohighlight=1#98133
>
> However I don't think this file is every executed as mythfrontend never
> starts. So I RTFM at ratpoison site (which doesn't mention anything about
> how to install ratpoison btw). and decided to create a .ratpoisonrc file
> too. Doesnt seem that this gets executed either since frontend still doesnt
> start up. Also when I ctrl-t or ctrl-c, no terminal pops up. I obviously
> don't know anything about ratpoison and the documentation is horrible unless
> you already know how to use it.
>
> Anyone have any idea what boneheaded thing I'm doing wrong ;)

Here's my ~/.ratpoisonrc (excuse all the commented out crud):

# This is a sample .ratpoisonrc file
#
# $Id: sample.ratpoisonrc,v 1.6 2003/09/10 22:25:32 sabetts Exp $
###
### NB - this file is invoked by ~mythtv/.xsession
###

# Set the prefix key to that of screen's default
escape C-a

# Gets rid of that ugly crosshairs default cursor
# and set the background to black
###exec xsetroot -solid black -cursor_name left_ptr
#exec xsetroot -solid blue -cursor_name left_ptr
exec xsetroot -cursor_name left_ptr
exec xloadimage -onroot -quiet -center /home/mythtv/.mythtv/mythtvstart.jpg

# Emulate screen by starting with a new xterm
###exec xterm

# Bind e to our favorite editor
###bind e exec emacs

# bind s to interactively run a surfraw query on freshmeat
###bind s colon exec xterm -e freshmeat

# bind b (`b' for browse) to interactively ask for an URL to open
###bind b colon exec mozilla http://www.
bind b exec firefox

# bind f (`f' for frontend) to start up mythfrontend
bind f exec /usr/local/bin/mythrestart.sh

# Use the name of the program rather than the title in the window list
defwinname name

# bind M-! to store the current frame layout in slot #1
bind M-exclam exec ratpoison -c "setenv fs1 `ratpoison -c 'fdump'`"

#bind M-1 to restore the frame layout in slot #1
bind M-1 exec ratpoison -c "frestore `ratpoison -c 'getenv fs1'`"

# Do the same for slot #2 and bind it to M-@ and M-2, respectively.
###bind M-at exec ratpoison -c "setenv fs2 `ratpoison -c 'fdump'`"
###bind M-2 exec ratpoison -c "frestore `ratpoison -c 'getenv fs2'`"

# Give ourselves another slot on M-# and M-3, respectively.
###bind M-numbersign exec ratpoison -c "setenv fs3 `ratpoison -c 'fdump'`"
###bind M-3 exec ratpoison -c "frestore `ratpoison -c 'getenv fs3'`"

# Here's a hack from John Meacham:

bind a exec ratpoison -d :0.0 -c "echo `date +'%r - %A %n %D - %B'`
`cal | tail +2 | sed -e 's/^Su/\n\n Su/' -e 's/.*/ & /' -e \"s/\
$(date +%e)\ /\<$(date +%e)\>/\"`"

# it produces output like the following in the message window, very handy:
# +-----------------------+
# |05:05:24 PM - Tuesday |
# | 09/09/03 - September|
# | |
# |Su Mo Tu We Th Fr Sa |
# | 1 2 3 4 5 6 |
# | 7 8< 9>10 11 12 13 |
# |14 15 16 17 18 19 20 |
# |21 22 23 24 25 26 27 |
# |28 29 30 |
# +-----------------------+

### These added by PME
bind x exec xterm -j -fn '*-courier-*-r-*-14-*'
bind t exec thunderbird
bind c exec ratpoison -d :0.0 -c "echo `sudo /usr/bin/mbmon -c 1`"

# Ctrl-A PrintScrn does screenshot from X. Remember - if you want to screenshot
# video you have to turn off XV 1st.
bind Print exec import -silent -window root /tmp/scrshot-$(date
+%Y%m%d%H%M%S).png

# Since running a 720x576 definition the ratpoison screens are too big for the
# display so we reduce the size of them with defpadding to make them fit
#defpadding 25 25 25 25

# This xvattr ensures that there's no blue line at the top of the screen when
# using the bobdeint filter on playbacks - no longer needed for 0.17 onwards.
#exec xvattr -a XV_COLORKEY -v 0

###exec setleds +num &> /dev/null

### Call mythwelcome
exec mythwelcome




And here's my ~/.xsession:

/usr/bin/xset s off # Disable dynamic power management (screen blanking)
/usr/bin/xset s noblank

# Set numlock on
#exec setleds +num >/dev/null
#/usr/bin/numlockx

# Get rid of that ugly crosshairs default cursor and put up the mythtv
# background img.
#exec xsetroot -cursor_name left_ptr
#exec xloadimage -onroot -quiet -center /home/mythtv/.mythtv/mythtvstart.jpg

### Only start irexec if there isn't one already running.
IREXECSTS=`ps -e | grep irexec | grep -v grep | wc -l | awk '{print $1}'`
if [ $IREXECSTS -eq 0 ]
then
irexec --daemon /home/mythtv/.mythtv/lircrc
fi

### Only start irxevent if there isn't one already running.
IRXEVENTSTS=`ps -e | grep irxevent | grep -v grep | wc -l | awk '{print $1}'`
if [ $IRXEVENTSTS -eq 0 ]
then
irxevent /home/mythtv/.mythtv/lircrc &
fi

# Load saved nVidia driver custom settings
### nvidia-settings --load-config-only &

# Start xbindkeys to get keyboard shortcuts - not needed for ratpoison
xbindkeys &

# Run script which starts mythfrontend
mythwelcome &

# Run window manager of choice here. I like ratpoison best but SoftSqueeze
# doesn't display properly under it :(
###exec /usr/bin/evilwm
exec /usr/bin/ratpoison
###exec /usr/bin/blackbox

HTH,
Phill
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nowhere at cox

Oct 10, 2006, 6:58 AM

Post #4 of 14 (7174 views)
Permalink
Re: Ratpoison on dedicated frontend [In reply to]

Thanks for the info guys. I will play around with it. In the meantime, I
simply started the frontend from command line while running ratpoison wm,
and it turns out I still get the pauses. As it turns out the pauses don't
seem to be some buffering but more like dropped frames. The amount dropped
is always less than a second and happens at random intervals.

Any ideas what might be the source since running ratpoison hasn't seemed to
improve it?


Thanks,
Eric


adeffs.mythtv at gmail

Oct 10, 2006, 7:02 AM

Post #5 of 14 (7183 views)
Permalink
Re: Ratpoison on dedicated frontend [In reply to]

On 10/10/06, Nowhere <nowhere [at] cox> wrote:
> Thanks for the info guys. I will play around with it. In the meantime, I
> simply started the frontend from command line while running ratpoison wm,
> and it turns out I still get the pauses. As it turns out the pauses don't
> seem to be some buffering but more like dropped frames. The amount dropped
> is always less than a second and happens at random intervals.
>
> Any ideas what might be the source since running ratpoison hasn't seemed to
> improve it?

I've found that 0.19 and 0.20 run fine without a WM. The newer Xine
lib properly supports this as does mplayer.

--
Steve
Before you ask, read the FAQ!
http://www.mythtv.org/wiki/index.php/Frequently_Asked_Questions
then search the Wiki, and this list,
http://www.gossamer-threads.com/lists/mythtv/
Mailinglist etiquette -
http://www.mythtv.org/wiki/index.php/Mailing_List_etiquette
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satkins at inetdesign

Oct 10, 2006, 9:53 AM

Post #6 of 14 (7164 views)
Permalink
Re: Ratpoison on dedicated frontend [In reply to]

Steven Adeff wrote:

> I've found that 0.19 and 0.20 run fine without a WM. The newer Xine
> lib properly supports this as does mplayer.
>

How did you get it to work. I've tried but was never that successfull.

--

Stephen Atkins
http://inetdesign.org
satkins [at] inetdesign
urban.nightmare [at] jabber
icq: 11782200

For every complex problem there is an answer that is clear, simple, and
wrong. -- H L Mencken

Databases are my friends. I program for them, not against them...
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mtdean at thirdcontact

Oct 10, 2006, 10:32 AM

Post #7 of 14 (7157 views)
Permalink
Re: Ratpoison on dedicated frontend [In reply to]

On 10/10/06 09:58, Nowhere wrote:

> Thanks for the info guys. I will play around with it. In the meantime,
> I simply started the frontend from command line while running
> ratpoison wm, and it turns out I still get the pauses. As it turns out
> the pauses don't seem to be some buffering but more like dropped
> frames. The amount dropped is always less than a second and happens at
> random intervals.
>
> Any ideas what might be the source since running ratpoison hasn't
> seemed to improve it?
>

I think it was Col. Wireless in the library with the candlestick...

Mike
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mtdean at thirdcontact

Oct 10, 2006, 11:34 AM

Post #8 of 14 (7168 views)
Permalink
Re: Ratpoison on dedicated frontend [In reply to]

On 10/10/06 10:02, Steven Adeff wrote:

>On 10/10/06, Nowhere <nowhere [at] cox> wrote:
>
>
>>Thanks for the info guys. I will play around with it. In the meantime, I
>>simply started the frontend from command line while running ratpoison wm,
>>and it turns out I still get the pauses. As it turns out the pauses don't
>>seem to be some buffering but more like dropped frames. The amount dropped
>>is always less than a second and happens at random intervals.
>>
>>Any ideas what might be the source since running ratpoison hasn't seemed to
>>improve it?
>>
>>
>I've found that 0.19 and 0.20 run fine without a WM. The newer Xine
>lib properly supports this as does mplayer.
>
>
Sure, Myth runs fine without a WM. However, when you use more than one
window, all bets are off--i.e. if you start up an xterm or an external
media player or a browser or ...

Please don't run without a WM (or at least don't ask questions when
things like keypresses/remotes don't work properly in that configuration
;). If you're not using a Desktop Environment (i.e. GNOME/KDE) and,
instead, are just using a simple WM, it's not using much in the way of
resources. We're talking about a meg or two of RAM (or significantly
less) if you choose properly. You're much better off spending $20 on
another 256MiB stick of RAM; after all, if that 1MiB of RAM is really
necessary, you actually need more than just the 1MiB.

Mike

Oh, and if you want to check up on my values, remember that "ps aux"
reports RSS/VSZ as if the process were the only running process on the
system--it doesn't take into account memory requirements of shared
libraries that are required for other processes. Here's my "ps aux"
output for my WM--fluxbox, which is not a particularly low-resource
choice compared to, e.g., RatPoison

mythtv 2917 0.0 0.2 8108 1536 tty1 S Oct09 0:01 fluxbox

So, ps says I'm using ~8MiB VSZ with ~1.5MiB RSS.

Here's the "pmap -d" output for the process:

2917: fluxbox
Address Kbytes Mode Offset Device Mapping
08048000 1028 r-x-- 0000000000000000 003:00002 fluxbox
08149000 128 rw--- 0000000000101000 003:00002 fluxbox
08169000 556 rwx-- 0000000000000000 000:00000 [ anon ]
40000000 80 r-x-- 0000000000000000 003:00002 ld-2.3.2.so
40014000 4 rw--- 0000000000014000 003:00002 ld-2.3.2.so
40015000 32 r-x-- 0000000000000000 003:00002 libSM.so.6.0
4001d000 4 rw--- 0000000000007000 003:00002 libSM.so.6.0
4001e000 4 rw--- 0000000000000000 000:00000 [ anon ]
4001f000 80 r-x-- 0000000000000000 003:00002 libICE.so.6.3
40033000 4 rw--- 0000000000014000 003:00002 libICE.so.6.3
40034000 8 rw--- 0000000000000000 000:00000 [ anon ]
40036000 52 r-x-- 0000000000000000 003:00002 libXext.so.6.4
40043000 4 rw--- 000000000000d000 003:00002 libXext.so.6.4
40044000 68 r-x-- 0000000000000000 003:00002 libXft.so.2.1.2
40055000 4 rw--- 0000000000011000 003:00002 libXft.so.2.1.2
40056000 8 r-x-- 0000000000000000 003:00002 xlcDef.so.2
40058000 4 rw--- 0000000000001000 003:00002 xlcDef.so.2
40061000 140 r-x-- 0000000000000000 003:00002 libfontconfig.so.1.0.4
40084000 12 rw--- 0000000000023000 003:00002 libfontconfig.so.1.0.4
40087000 4 rw--- 0000000000000000 000:00000 [ anon ]
40088000 376 r-x-- 0000000000000000 003:00002 libfreetype.so.6.3.5
400e6000 28 rw--- 000000000005e000 003:00002 libfreetype.so.6.3.5
400ed000 68 r-x-- 0000000000000000 003:00002 libz.so.1.2.1
400fe000 4 rw--- 0000000000010000 003:00002 libz.so.1.2.1
400ff000 4 rw--- 0000000000000000 000:00000 [ anon ]
40100000 116 r-x-- 0000000000000000 003:00002 libexpat.so.0.5.0
4011d000 12 rw--- 000000000001c000 003:00002 libexpat.so.0.5.0
40120000 28 r-x-- 0000000000000000 003:00002 libXrender.so.1.2.2
40127000 4 rw--- 0000000000006000 003:00002 libXrender.so.1.2.2
40128000 796 r-x-- 0000000000000000 003:00002 libX11.so.6.2
401ef000 12 rw--- 00000000000c6000 003:00002 libX11.so.6.2
401f2000 56 r-x-- 0000000000000000 003:00002 libXpm.so.4.11
40200000 4 rw--- 000000000000d000 003:00002 libXpm.so.4.11
40201000 12 r-x-- 0000000000000000 003:00002 libXrandr.so.2.0
40204000 4 rw--- 0000000000002000 003:00002 libXrandr.so.2.0
40205000 628 r-x-- 0000000000000000 003:00002 libstdc++.so.5.0.5
402a2000 84 rw--- 000000000009d000 003:00002 libstdc++.so.5.0.5
402b7000 24 rw--- 0000000000000000 000:00000 [ anon ]
402bd000 132 r-x-- 0000000000000000 003:00002 libm-2.3.2.so
402de000 4 rw--- 0000000000020000 003:00002 libm-2.3.2.so
402df000 28 r-x-- 0000000000000000 003:00002 libgcc_s.so.1
402e6000 4 rw--- 0000000000007000 003:00002 libgcc_s.so.1
402e7000 1188 r-x-- 0000000000000000 003:00002 libc-2.3.2.so
40410000 16 rw--- 0000000000128000 003:00002 libc-2.3.2.so
40414000 12 rw--- 0000000000000000 000:00000 [ anon ]
40417000 8 r-x-- 0000000000000000 003:00002 libdl-2.3.2.so
40419000 4 rw--- 0000000000001000 003:00002 libdl-2.3.2.so
4041a000 4 rw--- 0000000000000000 000:00000 [ anon ]
4041b000 2048 r---- 0000000000000000 003:00002 locale-archive
4061b000 36 r-x-- 0000000000000000 003:00002 xomGeneric.so.2
40624000 4 rw--- 0000000000008000 003:00002 xomGeneric.so.2
40625000 32 r-x-- 0000000000000000 003:00002 libXcursor.so.1.0
4062d000 4 rw--- 0000000000007000 003:00002 libXcursor.so.1.0
4062e000 68 r---- 0000000000000000 003:00002 Vera.ttf
bfff8000 32 rwx-- 00000000ffff9000 000:00000 [ stack ]
mapped: 8108K writeable/private: 1000K shared: 0K

If you look through the memory map, you'll note that the vast majority
of that 8MB is in shared libs--which happen to be in use by other
processes that you/I will run on the system, anyway. Therefore, the
true cost of running this WM is 1000KiB (the writable/private size
reported at the bottom)--not the 8MB or 1.5MB that ps said. That's less
than 1MiB!!!

I'm guessing RatPoisong would be even lower values. Any RatPoison users
want to post a ps/pmap to help convince people to use a WM?

(Yeah, I know these programs/libraries are ancient versions, but I'm
working on that issue right now... :)

Q: How can I save a huge amount of memory in my X windows environment?
A: Don't run a WM. It could save you over a million bytes of memory!!!
Q: Isn't that just /one/ megabyte.
A: Ummm. Yeah. But, "one megabyte," doesn't sound like much. I'm
trying to sell the idea. Geeez.
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bhuffman at graze

Oct 10, 2006, 11:40 AM

Post #9 of 14 (7155 views)
Permalink
Re: Ratpoison on dedicated frontend [In reply to]

----- Original Message -----
From: mythtv-users-bounces [at] mythtv on behalf of Michael T. Dean
Sent: Tue, 10/10/2006 2:34pm
To: Discussion about mythtv
Subject: Re: [mythtv-users] Ratpoison on dedicated frontend

> I'm guessing RatPoisong would be even lower values.  Any RatPoison users
> want to post a ps/pmap to help convince people to use a WM?

Yeah - it's pretty small.  :-)

2933:   /usr/bin/ratpoison
Address   Kbytes Mode  Offset           Device    Mapping
00111000      28 r-x-- 0000000000000000 0fd:00000 libXrender.so.1.2.2
00118000       4 rwx-- 0000000000007000 0fd:00000 libXrender.so.1.2.2
00126000       8 r-x-- 0000000000000000 0fd:00000 libXinerama.so.1.0
00128000       4 rwx-- 0000000000001000 0fd:00000 libXinerama.so.1.0
001de000     828 r-x-- 0000000000000000 0fd:00000 libX11.so.6.2
002ad000      16 rwx-- 00000000000cf000 0fd:00000 libX11.so.6.2
003ae000       8 r-x-- 0000000000000000 0fd:00000 xlcDef.so.2
003b0000       4 rwx-- 0000000000001000 0fd:00000 xlcDef.so.2
00402000      20 r-x-- 0000000000000000 0fd:00000 libXtst.so.6.1
00407000       4 rwx-- 0000000000004000 0fd:00000 libXtst.so.6.1
005a0000    1164 r-x-- 0000000000000000 0fd:00000 libc-2.3.6.so
006c3000       8 r-x-- 0000000000122000 0fd:00000 libc-2.3.6.so
006c5000       8 rwx-- 0000000000124000 0fd:00000 libc-2.3.6.so
006c7000       8 rwx-- 00000000006c7000 000:00000   [ anon ]
0075f000      36 r-x-- 0000000000000000 0fd:00000 libXcursor.so.1.0.2
00768000       4 rwx-- 0000000000008000 0fd:00000 libXcursor.so.1.0.2
00a5c000       8 r-x-- 0000000000000000 0fd:00000 libdl-2.3.6.so
00a5e000       4 r-x-- 0000000000001000 0fd:00000 libdl-2.3.6.so
00a5f000       4 rwx-- 0000000000002000 0fd:00000 libdl-2.3.6.so
00ae0000      24 r-x-- 0000000000000000 0fd:00000 libhistory.so.5.0
00ae6000       4 rwx-- 0000000000005000 0fd:00000 libhistory.so.5.0
00bac000       4 r-x-- 0000000000bac000 000:00000   [ anon ]
00bad000     104 r-x-- 0000000000000000 0fd:00000 ld-2.3.6.so
00bc7000       4 r-x-- 0000000000019000 0fd:00000 ld-2.3.6.so
00bc8000       4 rwx-- 000000000001a000 0fd:00000 ld-2.3.6.so
00c96000      56 r-x-- 0000000000000000 0fd:00000 libXext.so.6.4
00ca4000       4 rwx-- 000000000000d000 0fd:00000 libXext.so.6.4
08048000     124 r-x-- 0000000000000000 0fd:00000 ratpoison
08067000       4 rw--- 000000000001f000 0fd:00000 ratpoison
08e15000     132 rw--- 0000000008e15000 000:00000   [ anon ]
b7f94000       8 rw--- 00000000b7f94000 000:00000   [ anon ]
b7fa7000       4 rw--- 00000000b7fa7000 000:00000   [ anon ]
bfc5a000      84 rw--- 00000000bfc5a000 000:00000   [ stack ]
mapped: 2728K    writeable/private: 300K    shared: 0K


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mtdean at thirdcontact

Oct 10, 2006, 11:48 AM

Post #10 of 14 (7157 views)
Permalink
Re: Ratpoison on dedicated frontend [In reply to]

On 10/10/06 14:40, Brian C. Huffman wrote:

>From: Michael T. Dean
>
>>I'm guessing RatPoisong would be even lower values. Any RatPoison users
>>want to post a ps/pmap to help convince people to use a WM?
>>
>Yeah - it's pretty small. :-)
>
>2933: /usr/bin/ratpoison
>
>
...

>mapped: 2728K writeable/private: 300K shared: 0K
>
Wow--on two counts. Fast reply and /only/ 300KiB (again, nearly all (or
all?) the libraries are in use by X and/or other processes, anyway).
I'll confidently say, if you really need that 300KiB, you really need to
go out and buy more RAM.

Mike
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wmunson at rochester

Oct 10, 2006, 12:10 PM

Post #11 of 14 (7195 views)
Permalink
Re: Ratpoison on dedicated frontend [In reply to]

Nowhere wrote:
>
> Thanks for the info guys. I will play around with it. In the meantime,
> I simply started the frontend from command line while running
> ratpoison wm, and it turns out I still get the pauses. As it turns out
> the pauses don't seem to be some buffering but more like dropped
> frames. The amount dropped is always less than a second and happens at
> random intervals.
>
> Any ideas what might be the source since running ratpoison hasn't
> seemed to improve it?
>
>
Sounds like a video card problem. Check your video card agp slot
settings. You may have the accel settings either off or set too high.
For my system agp setting of 4x seems to work best for me. For me this
is a bios setting, not a linux setting.

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philledwards at gmail

Oct 10, 2006, 3:41 PM

Post #12 of 14 (7161 views)
Permalink
Re: Ratpoison on dedicated frontend [In reply to]

> Thanks for the info guys. I will play around with it. In the meantime, I
> simply started the frontend from command line while running ratpoison wm,
> and it turns out I still get the pauses. As it turns out the pauses don't
> seem to be some buffering but more like dropped frames. The amount dropped
> is always less than a second and happens at random intervals.
>
> Any ideas what might be the source since running ratpoison hasn't seemed to
> improve it?

I had something like this once - my playback was all stop/start with
the sound seeming to run too fast compared to the video. I fixed it by
making sure I turned off arts in KDE and turn off "Use video as time
base" in the playback settings.

Not sure if that's the same problem as your's but maybe give it a shot.

Regards,
Phill
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indulis.b at au1

Oct 10, 2006, 7:39 PM

Post #13 of 14 (7158 views)
Permalink
Re: Ratpoison on dedicated frontend [In reply to]

I was having similar problems- turned out that my Ethernet Over Power
(Netcomm NP210) is v sensitive to compact fluorescent lights. In the
evenings I get the same type of stuttering. So, if your network between
FE and BE is not fast enough, or has other "bursty" traffic, you will get
this type of jerky video.

Cheers,

Indulis


nowhere at cox

Oct 10, 2006, 9:40 PM

Post #14 of 14 (7168 views)
Permalink
Re: Ratpoison on dedicated frontend [In reply to]

> -----Original Message-----
> From: mythtv-users-bounces [at] mythtv
> [mailto:mythtv-users-bounces [at] mythtv] On Behalf Of Phill Edwards
> Sent: Tuesday, October 10, 2006 3:41 PM
> To: Discussion about mythtv
> Subject: Re: [mythtv-users] Ratpoison on dedicated frontend
>
> > Thanks for the info guys. I will play around with it. In
> the meantime,
> > I simply started the frontend from command line while running
> > ratpoison wm, and it turns out I still get the pauses. As
> it turns out
> > the pauses don't seem to be some buffering but more like dropped
> > frames. The amount dropped is always less than a second and
> happens at random intervals.
> >
> > Any ideas what might be the source since running ratpoison hasn't
> > seemed to improve it?
>
> I had something like this once - my playback was all
> stop/start with the sound seeming to run too fast compared to
> the video. I fixed it by making sure I turned off arts in KDE
> and turn off "Use video as time base" in the playback settings.
>
> Not sure if that's the same problem as your's but maybe give
> it a shot.
>
> Regards,
> Phill

Thanks again everyone.

I assume if running ratpoison, KDE arts is disabled. ;P I will definitely
check the time base check box though...

I am lean towards either the video/agp settings or something about the
wireless. My master is serving through a 102.11b gaming adapter but seems to
serve my LAN connected system fine. But maybe the madwifi wireless setup on
my remote frontend is the culprit. I don't really know much about setting up
madwifi. Just grabbed a howto and plugged in what they suggested. I will
move it back into the "server room" tonight and connect it cat5 and see if
the machine is able to handle the video playback. If it's good then I will
have to start seeking help with madwifi ;)

I assume from the responses that everyone believes a Celeron 550 with 256Mb
RAM should be able to handle these 2200 bit rate non-hd videos, yah?

Thanks again!
Eric




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