Beirdobot, irc.freenode.net

Wednesday, August 16th, 2017, 00:22 UTC

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[03:42:14]

** hampton wants to know who's got the 47–48 year old database. :-) **

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stuarta:

hampton: hah, i suspect that may be a case of the epoch date sneaking in to the data somehow. now() – epoch() ~= 47 years

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[08:33:10]

** stuarta decides to read up on wayland **

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[09:05:52]

stuarta:

https://wayland.freedesktop.org/docs/html/ if anyone else is bored

[09:11:09]

stuarta:

but then there is qtwayland, which has done a lot of the hard work already

[09:34:59]

stuarta:

probably still need to read the wayland docs to understand the concepts

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[10:48:26]

stuarta:

ugh, mythmainwindow.cpp is pretty horrible

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[11:19:01]

stuarta:

sigh, how can MythRenderBase be further up the inheritance tree than MythRenderEGL

[11:19:14]

stuarta:

https://code.mythtv.org/doxygen/classMythRenderEGL.html

[11:20:00]

stuarta:

ahah, it's a typo in the documentation i think

[11:21:05]

stuarta:

since the link takes you to MythRenderOpenGLES2

[11:21:43]

** stuarta facepalms **

[11:22:51]

stuarta:

libs/libmythtv/videoout_omx.cpp:typedef MythRenderOpenGL2ES MythRenderBase;

[11:22:51]

stuarta:

libs/libmythtv/videoout_omx.cpp:class MythRenderEGL : public MythRenderBase

[11:23:10]

stuarta:

so it's typedef'd which is confusing the doxygen docs

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peterbennett:

stuarta: I am not a fan of typedef. It raises thee obfuscation factor in most cases.

[14:13:33]

stuarta:

peterbennett: sounds like you approve of the change then :)

[14:14:36]

peterbennett:

yep

[14:14:38]

stuarta:

i was trying to read the doxygen inheritance tree, and found a "MythRenderBase" between MythRenderEGL and MythRenderOpenGL2

[14:14:54]

stuarta:

https://code.mythtv.org/doxygen/classMythRenderEGL.html <- still there until the rebuild in ~3hrs

[14:15:56]

stuarta:

learnt some interesting things, like wayland only uses EGL calls, not GL, because GL pulls in GLX which pulls the X libraries

[14:16:42]

peterbennett:

So does OpenGL work?

[14:16:51]

stuarta:

i have no idea

[14:17:05]

stuarta:

i'm doing research as I don't know enough about the topic

[14:17:41]

stuarta:

started this rabbit hole, because i've noticed that libva is failing to properly initialize vaapi when running under wayland (the default on f26)

[14:18:24]

stuarta:

not quite sure yet where it's going wrong, but i suspect it's how we initialize the connection to the xserver

[14:18:51]

peterbennett:

The next version of Ubuntu also uses wayland

[14:19:02]

stuarta:

17.10 ??

[14:19:30]

stuarta:

so that may increase the urgency of this somewhat

[14:20:00]

peterbennett:

Not sure if that is 17.10 or 18.04. I only use LTS versions

[14:20:12]

stuarta:

this is one of the reasons i released v29 for 17.10, to get some early exposure and fixes done so that we can ship v29.1 for 18.04 (the next LTS)

[14:20:25]

peterbennett:

Ubuntu 17.10 will offer a Wayland session alongside a traditional Xorg one.

[14:20:44]

peterbennett:

Not sure what that means

[14:20:45]

stuarta:

i use the LTS versions for my backend, and my prod frontend, however my main dev machine is f26

[14:21:33]

stuarta:

peterbennett: probably what f25 did, it was available as a selectable option when logging in, but not the default, now at f26, they've switched wayland to be the default, and you have to select xorg if you want it

[14:21:35]

gary_buhrmaster:

As long as one can still fall back to X session, there will be a workaround for now. Until (someone with copious free time) does the full wayland port...

[14:22:15]

stuarta:

gary_buhrmaster: i have been pondering a MythRenderWayland / MythPainterWayland

[14:23:19]

stuarta:

so as a consequence, rather than spending a lot of time learning low level wayland, QtWayland is becoming more attractive

[14:23:33]

gary_buhrmaster:

Excellent (the someone has been identified).

[14:23:39]

stuarta:

doh!

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jheizer_:

LOLOLOL

[14:23:55]

stuarta:

although you can strike out "copious free time"

[14:24:25]

stuarta:

the more i look into it, the more horrible it becomes

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dekarl1 is now known as dekarl

[17:50:49]

dekarl:

peterbennett, another reason for the ubuntu dominance in the stats is that many issues with the hardware profiler have been fixed on ubuntu... I bet that someone fixing all the issues on other platforms then their numbers will rise, too

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gary_buhrmaster:

dekarl: Does not mythbuntu also help (especially) new users enable the profiler? That (if true) may also be a contributing reason.

[18:48:29]

tgm4883:

gary_buhrmaster: no we do not

[18:48:58]

peterbennett:

dekarl: I would expect that if the profiler is working for a particular case (e.g. fedora 25) then it would work for all fedora 25, so the stats for that would be good

[18:49:04]

tgm4883:

To my knowledge, we can't do that

[18:49:30]

tgm4883:

We did ask our users to opt in

[18:49:57]

peterbennett:

dekarl: If there are os's totally missing then maybe it is not working there.

[18:56:00]

gary_buhrmaster:

tgm4883: Asking users to opt-in (not doing it for them) was was the help I was thinking of. None of the other packages (that I know of) make that hint.

[19:15:39]

gary_buhrmaster:

fwiw, the profiler runs under Fedora and smolt seems to have the right data

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stuarta:

peterbennett: dekarl i'd go with mythbuntu being the lowest barrier of entry to using mythtv

[19:44:35]

dekarl:

gary_buhrmaster: no, nothing special in terms of "making them turn it on more often"

[19:45:11]

dekarl:

its more that all corner cases have been handled on a case by case basis

[19:47:22]

dekarl:

simple stuff like https://github.com/MythTV/packaging/commit/a1 . . . da1e6b04e9a4 where the profiler depends on static data from other packages that are optional

[19:47:52]

dekarl:

no raspberry pi on the list until you add pci utils even in absence of a pci bus

[19:48:11]

stuarta:

dekarl: raspbian is there

[19:48:21]

stuarta:

as is arm cpu's

[19:51:24]

peterbennett:

stuarta: the profile does not work in my system

[19:51:26]

dekarl:

that's likely thanks to a maintainer that takes care. notice that Raspbian is ahead of the rest of Debian. looks like the debian-multimedia variant of MythTV has a hardware profiler that doesn't work as well

[19:51:38]

stuarta:

peterbennett: on the rpi?

[19:51:47]

peterbennett:

amd64

[19:52:12]

stuarta:

on ubuntu?

[19:52:20]

stuarta:

you on 16.04??

[19:52:24]

gary_buhrmaster:

stuarta: Does not your (countably infinite) TODO list include a smolt rework? Smolt is dead, after all.

[19:52:28]

peterbennett:

yep, this is my test system

[19:52:31]

stuarta:

gary_buhrmaster: of course

[19:52:36]

peterbennett:

AttributeError: 'NoneType' object has no attribute 'group'

[19:52:53]

stuarta:

not so much a rework, as a complete rewrite, much like the channel icon lookup service

[19:52:57]

dekarl:

ohh, what is it missing? can you pastebin the back trace?

[19:53:12]

stuarta:

which sadly also needs work, and a new icon source

[19:53:44]

dekarl:

and yes, we could replace it with something simpler that is mythtv custom. (nothing to lose as we are the last smolt users and all replacements died, too)

[19:53:58]

peterbennett:

https://pastebin.com/15wMC1Vz

[19:54:00]

stuarta:

dekarl: i have plenty of ideas ;-)

[19:54:42]

stuarta:

peterbennett: do you turn upnp off?

[19:55:42]

peterbennett:

No I just run the frontened with no argument

[19:56:12]

dekarl:

do you turn upnp off on the backend? and is this run as your mythtv user?

[19:57:00]

peterbennett:

Oh I think I set a PIN on the backend

[19:57:20]

peterbennett:

That will prevent retrieving a datbase password

[19:57:43]

stuarta:

basically it looks like it's not handling the case where it fails to get the data

[19:58:03]

peterbennett:

message "HouseKeeperTask 'HardwareProfiler' Failed." comes every time I start the frontend

[19:58:35]

peterbennett:

It looks like there is code in database.py to look in config.xml but that is not working

[19:59:46]

stuarta:

yeah, there is no check to handle if it fails to match anything

[19:59:59]

stuarta:

https://github.com/MythTV/mythtv/blob/master/ . . . ions.py#L469

[20:00:02]

peterbennett:

Actually the pin is 0000 on teh backend so that should be ok

[20:00:25]

peterbennett:

On my production system I set a pin to prevent unexpected access

[20:00:37]

stuarta:

also line 597, which is closer to the linenum in your backtrace

[20:00:38]

peterbennett:

But here it is 0000

[20:01:39]

peterbennett:

I'm afraid I don't understand much python

[20:01:49]

stuarta:

oh it's a horrible language

[20:02:14]

stuarta:

spent a couple of days rewriting the buildmaster config so it'll auto configure itself given the list of slaves and a branch name

[20:02:50]

stuarta:

anything that uses white space indentation instead of block quotes should be burned with fire

[20:04:09]

peterbennett:

I think the profiler may be working in my production system, just failing in test

[20:05:22]

stuarta:

anyway, would be curious to see what's in the res object

[20:07:33]

peterbennett:

The debug option -d does not seem to work

[20:08:52]

stuarta:

it'll need instrumenting with some debug code

[20:08:56]

stuarta:

pita

[20:09:12]

peterbennett:

Need to debug the debug code ?

[20:09:24]

stuarta:

nah, just what the connection is trying to do

[20:13:40]

peterbennett:

OK My config.xml had the wrong pin

[20:13:47]

stuarta:

:)

[20:13:52]

peterbennett:

I fixed it and the error is different

[20:13:59]

stuarta:

:(

[20:14:12]

peterbennett:

File "/home/peter/proj/build/mythtv/ttvdb/usr/local/lib/python2.7/dist-packages/ MythTV/database.py", line 1276, in __init__

[20:14:13]

peterbennett:

raise MythDBError(MythError.DB_CREDENTIALS)

[20:14:13]

peterbennett:

MythTV.exceptions.MythDBError: Could not find database login credentials

[20:16:53]

peterbennett:

I will try recreating the config.xml and see what happens – The frontend and others are able to handle a wrong pin by looking in config.xml for the database details but the python stuff seems less able.

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[21:02:09]

peterbennett:

I recreated config.xml two ways – 1 with database name and password entered , 2 with UPNP

[21:02:33]

peterbennett:

In each case sendProfile.py is successful

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peterbennett:

The time it fails is if you have changed your PIN after creating your config.xml

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