[mythtv] Mythtv - lirc commands not functioning as expected

[Paul Harrison]

mlists at dressler.ca wrote:
> Hi everyone,
>
> I've been using trunk a long time but haven't really contributed to the list.  
> The reason I use trunk is 2 - fold I have an HD PVR and I am trying out the 
> VDPAU config.  
>
> I have an RF keyboard and mouse that I've been using but recently purchased a 
> Logitech 550 universal.  
>
> The problem I'm having is that on my keyboard I can enter a channel number in 
> the guide and it will jump to that location in the guide.  On the remote it 
> does not do this.  Its doing other functions like pgup and pgdn day forward 
> day back.  I have checked the 'jump to' box in the config.  In the same session 
> the keyboard numbers work for jump to.  Is this a bug with the LIRC 
> implementation or am I missing something in setup?  The lircrc file has the 
> same keystrokes assigned to the functions I use on the keyboard so it 
> definitely is odd.
>
> This happens in both VDPAU and normal modes (I realize the guide 
> implementations are different right now).
>
> My version info:
> MythTV Version   : 19483
> MythTV Branch    : trunk
> Library API      : 0.22.20081222-1
> Network Protocol : 43
> QT Version       : 4.3.4
> Options compiled in:
>  linux release using_oss using_alsa using_arts using_jack using_backend 
> using_dvb using_firewire using_frontend using_hdhomerun using_hdpvr using_iptv 
> using_ivtv using_joystick_menu using_lirc using_mheg using_opengl_video 
> using_v4l using_x11 using_xrandr using_xv using_xvmc using_xvmc_vld 
> using_xvmcw using_bindings_perl using_bindings_python using_opengl using_vdpau 
> using_ffmpeg_threads using_libavc_5_3 using_live using_mheg
>
> I didn't post a ticket because I don't know if its a bug or me yet :)
>
> Thx
> Norm
>   

This is a bug - I can reproduce the exact same behavior. 

The problem is when the custom event is processed for a lirc key press 
(mythmainwindow.cpp line 1517) the text variable only ever gets set if 
the keycode has a Qt::UNICODE_ACCEL modifier which never seems to be the 
case.  The result of this is the QKeyEvent that gets sent doesn't have 
the  text parameter set to anything so when the guide grid tries to 
convert it to an integer it always fails. QKeyEvents from the keyboard 
always have  the text set so that works  OK.

A quick fix is to comment out line 1534 in mythmainwindow.cpp so that 
text always get set but don't know enough about this code to know what 
the consequences of this are. Anybody familiar with this code care to 
comment?

I wonder if this has ever worked or has something changed? Could be 
related to the switch to Qt4.

Paul H.