[mythtv-users] mythfrontend on .xinitrc

Michael T. Dean mtdean at thirdcontact.com
Wed Nov 7 00:26:11 UTC 2012

On 11/06/2012 04:11 PM, Ken Mink wrote:
> On 11/6/12 2:17 PM, Raymond Wagner wrote:
>> On 11/6/2012 09:52, Ken Mink wrote:
>>> On 11/6/12 7:47 AM, Josu Lazkano wrote:
>>>> I am having some segfault with mythfrontend so I want to know if is a
>>>> good option to add the mythfrontend binary on the user ".xinitrc"
>>>> file.
>>> I have the mythtv user automatically logged in on tty8. Then their
>>> .bash_profile does a startx and the last thing in the .xinitrc is
>>> mythfrontend. This runs the FE without the overhead of a window 
>>> manager.
>> You should always use a window manager. You need something to handle 
>> the Z-axis of multiple windows, even if you're only running 
>> mythfrontend.
> I run my FEs as STBs. They don't have mice or keyboards and they don't 
> run other apps. There are no multiple windows to have to worry about a 
> Z-axis. A lot of embedded systems run a x-window apps full screen 
> without a window manager. Window managers are not always necessary.
> Another solution would be to run the FE from .xinitrc on one virtual 
> console. It you need a window manager for other apps, switch to 
> another virtual console.

Just because you haven't stumbled across the problems that exist when 
running on a system without a Window Manager, don't assume that there is 
no need for one.  And, more importantly, please don't go around telling 
other people that there's no need for one.

I may tell myself that there's no need for a safety on my .45 Magnum, 
and remove it from my pistol--after all, there's no need for one if I 
only ever pull the trigger when I want it to fire--but I would /never/ 
presume to tell other people to do the same.***

Besides, can't you spare 300kB of RAM ( 
http://www.gossamer-threads.com/lists/mythtv/users/230352#230352 ) to 
get a bulletproof system rather than running in a mode that is known to 
have problems--that may still be laying in wait for you to find one 
day.  It just seems to be sensible to run in a known-good 
configuration--especially if you're running an appliance that should 
Just Work.

I suppose, though, if you'd prefer to walk around an active minefield 
just for the thrill of it--and save yourself 300kB, after all, we all 
know just how critical 300kB is in a modern system capable of running 
mythfrontend--then more power to you...  But, again, please don't tell 
others to run without a WM.  And, really, please don't report any 
problems with parts of the UI being obscured or with mythfrontend 
locking up or...  After all, if/when you do get Z-axis or focus problems 
or whatever, I really don't want to have to waste my time walking you 
through tests to find out why mythfrontend locked up only to find that 
you're running without a Window Manager, so all input is going to the 
root window (what, a window that's not mythfrontend on your system?) and 
so mythfrontend isn't being told to do anything (or whatever specific 
problem you may encounter).



*** I do not have a .45 Magnum, nor would I ever modify one in such a 
way.  I'm just trying to make it clear that even if someone does 
something against the general wisdom professed by the community (and/or, 
possibly even against common sense), he shouldn't be telling others to 
do the same.  (And, really, saying, "I only use mythfrontend, so I don't 
need a WM," is almost /exactly/ like saying, "I only ever pull the 
trigger when I want it to fire," because just as you never know who--or 
what--else might accidentally pull the trigger, you also never know what 
windows (plural!) are created by mythfrontend, let alone what other 
applications mythfrontend might spawn, which may have windows 
themselves--now, a Window Manager would know, but...)

More information about the mythtv-users mailing list