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[ViX_Misc] A Ghost in my Machine ?? ( HDMI-CEC problem )

Rob van der Does said:
The fact that the HDMI-CEC has been disabled or even removed, will not stop the TV from sending messages. So they will show up in the log, but I assume the box is not responding to them?

If that would be the case, you must disable the HDMI-CEC support in the menu of the TV. Looking into my TV that should be possible.
Click to expand...
Well, I'm digging a little bit deeper into HDMI-CEC... and it looks like the plugin is just managing the settings in /etc/enigma2/settings.
And it also looks like there is a setting config.hdmicec.enabled which was not in my settings file.
So, I removed all the config.hdmicec.xxxxx lines and just put in config.hdmicec.enabled=false.
Maybe this makes the ghost go away now. :-)
 
2stein said:
Well, I'm digging a little bit deeper into HDMI-CEC... and it looks like the plugin is just managing the settings in /etc/enigma2/settings.
And it also looks like there is a setting config.hdmicec.enabled which was not in my settings file.
So, I removed all the config.hdmicec.xxxxx lines and just put in config.hdmicec.enabled=false.
Maybe this makes the ghost go away now. :-)
Click to expand...
I hope you stopped Enigma before editing the settingsfile? Otherwise it will be overwritten again with the old settings.
And keep us posted on how you go on :thumbsup:
 
Rob van der Does said:
I hope you stopped Enigma before editing the settingsfile? Otherwise it will be overwritten again with the old settings.
And keep us posted on how you go on :thumbsup:
Click to expand...
Yes, I did. Unfortunately, it didn't help. HDMI-CEC on TV is disabled as well, but I still see tons of
eHdmiCEC: received message
eHdmiCEC: received message 83
Click to expand...
And the ghost still switches channels, displays the menu, etc.
I'm frustrated.
 
2stein said:
Yes, I did. Unfortunately, it didn't help. HDMI-CEC on TV is disabled as well, but I still see tons of

And the ghost still switches channels, displays the menu, etc.
I'm frustrated.
Click to expand...
And HDMI-CEC of the box is still de-installed? I ask that, because on doing an online update it will be re-installed.
 
Rob van der Does said:
And HDMI-CEC of the box is still de-installed? I ask that, because on doing an online update it will be re-installed.
Click to expand...
yes, the HDMI-CEC Plugin is still deinstalled. However, the real HDMI-CEC stuff is part of the enigma binary. so, it can't be deinstalled.
I suspect that the HDMI-CEC driver misinterprets some noise on the HDMI interface as commands or something like that.
 
2stein said:
yes, the HDMI-CEC Plugin is still deinstalled. However, the real HDMI-CEC stuff is part of the enigma binary. so, it can't be deinstalled.
Click to expand...
Hmmm, where did you find that? As far as I know it's only a plugin. And of course: that plugin is supported by the drivers.
 
Rob van der Does said:
Well, allow me that sneak peek as well: where do you find it to be Enigma-integrated?
Click to expand...
well, i checked again... it's not enigma2 it's a driver that seems to be permanently active, sorry. :-) Unfortunately the driver is not standalone but bound together with others in one module, so it can't be removed easily.
i see that the driver is working with the device /dev/hdmi_cec
Code: 
eHdmiCEC::eHdmiCEC()
  45 : eRCDriver(eRCInput::getInstance())
  46 {
  47         ASSERT(!instance);
  48         instance = this;
  49         fixedAddress = false;
  50         physicalAddress[0] = 0x10;
  51         physicalAddress[1] = 0x00;
  52         logicalAddress = 3;
  53         deviceType = 3;
  54 #ifdef DREAMBOX
  55         hdmiFd = ::open("/dev/misc/hdmi_cec0", O_RDWR | O_NONBLOCK);
  56 #else
  57         hdmiFd = ::open("/dev/hdmi_cec", O_RDWR | O_NONBLOCK);
  58 #endif
  59         if (hdmiFd >= 0)
  60         {
  61 
  62 #ifdef DREAMBOX
  63                 unsigned int val = 0;
  64                 ::ioctl(hdmiFd, 4, &val);
  65 #else
  66                 ::ioctl(hdmiFd, 0); /* flush old messages */
  67 #endif
  68                 getAddressInfo();
  69                 messageNotifier = eSocketNotifier::create(eApp, hdmiFd, eSocketNotifier::Read | eSocketNotifier::Priority);
  70                 CONNECT(messageNotifier->activated, eHdmiCEC::hdmiEvent);
  71         }
  72 }
what i'm trying next is to remove the device /dev/hdmi_cec before enigma2 is started.
according to the constructor code in the device driver the device driver should be dead if it can't open the device. let's see.
 
Last edited:
2stein said:
well, i checked again... it's not enigma2 it's a driver that seems to be permanently active, sorry. :-) Unfortunately the driver is not standalone but bound together with others in one module, so it can't be removed easily.

what i'm trying next is to remove the device /dev/hdmi_cec before enigma2 is started.
according to the constructor code in the device driver the device driver should be dead if it can't open the device. let's see.
Click to expand...
Exactly what I said: de-instal the plugin.
Nevertheless: when both TV & box have the settings disabled, there should not be any problem.
 
Rob van der Does said:
Exactly what I said: de-instal the plugin.
Nevertheless: when both TV & box have the settings disabled, there should not be any problem.
Click to expand...
well, as i said: the plugin is deinstalled, but the device /dev/hdmi_cec is still there and the driver is active... generating messages.
 
2stein said:
well, i checked again... it's not enigma2 it's a driver that seems to be permanently active, sorry. :-) Unfortunately the driver is not standalone but bound together with others in one module, so it can't be removed easily.
i see that the driver is working with the device /dev/hdmi_cec
Code: 
eHdmiCEC::eHdmiCEC()
  45 : eRCDriver(eRCInput::getInstance())
  46 {
  47         ASSERT(!instance);
  48         instance = this;
  49         fixedAddress = false;
  50         physicalAddress[0] = 0x10;
  51         physicalAddress[1] = 0x00;
  52         logicalAddress = 3;
  53         deviceType = 3;
  54 #ifdef DREAMBOX
  55         hdmiFd = ::open("/dev/misc/hdmi_cec0", O_RDWR | O_NONBLOCK);
  56 #else
  57         hdmiFd = ::open("/dev/hdmi_cec", O_RDWR | O_NONBLOCK);
  58 #endif
  59         if (hdmiFd >= 0)
  60         {
  61 
  62 #ifdef DREAMBOX
  63                 unsigned int val = 0;
  64                 ::ioctl(hdmiFd, 4, &val);
  65 #else
  66                 ::ioctl(hdmiFd, 0); /* flush old messages */
  67 #endif
  68                 getAddressInfo();
  69                 messageNotifier = eSocketNotifier::create(eApp, hdmiFd, eSocketNotifier::Read | eSocketNotifier::Priority);
  70                 CONNECT(messageNotifier->activated, eHdmiCEC::hdmiEvent);
  71         }
  72 }
what i'm trying next is to remove the device /dev/hdmi_cec before enigma2 is started.
according to the constructor code in the device driver the device driver should be dead if it can't open the device. let's see.
Click to expand...
i think i killed the ghost now. :-) No hdmi_cec messages in the log anymore, no mysterious channel switches.
however, there should be an easier way to disable hdmicec completely.
 
2stein said:
i think i killed the ghost now. :-) No hdmi_cec messages in the log anymore, no mysterious channel switches.
however, there should be an easier way to disable hdmicec completely.
Click to expand...

How did you disable it completely in the end?
 
judge said:
How did you disable it completely in the end?
Click to expand...
i created a file /usr/bin/enigma2_pre_start.sh
with the following content:
Code: 
#!/bin/sh
rm /dev/hdmi_cec
this deletes the /dev/hdmi_cec device before enigma2 starts. and without the device the hdmicec device driver doesn't work.
 
So, is you disable the plugin, restart enigma, remove the plugin, restart enigma, it's still active?
 
judge said:
So, is you disable the plugin, restart enigma, remove the plugin, restart enigma, it's still active?
Click to expand...
removing the plugin does not remove the device driver. the device driver was still active and caused my problems.
 
That's why I'm asking, it really shouldn't be that much of a pain to remove a plugin.

Did you restart the box after first disabling the plugin.
Then again after removing the plugin.
If so, we do have an issue that probably needs fixing.
 
judge said:
That's why I'm asking, it really shouldn't be that much of a pain to remove a plugin.

Did you restart the box after first disabling the plugin.
Then again after removing the plugin.
If so, we do have an issue that probably needs fixing.
Click to expand...
yes, i did. and i think we do have a problem.
1. problem: hdmicec doesnt work with my sony bravia tv: ghost key strokes
2. problem: it's not possible to disable hdmicec completely (the device driver)
 
Last edited:
2stein said:
yes, i did. and i think we do have a problem.
1. problem: hdmicec doesnt work with my sony bravia tv: ghost key strokes
2. problem: it's not possible to disable hdmicec completely (the device driver)
Click to expand...
What I still don't understand is why for my Sony Bravia it is sufficient to 'kill' those commands in the TV-menu.
 
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