Problems after update 10.0.2 > 10.0.3: Image on boot, CEC, GPIO DAC

spk-uke · November 20, 2022 at 5:07 PM

Hi guys,

I updated manually from 10.0.2 to 10.0.3 and have a couple of nasty problems:

No video output past rainbow splash screen
Switching sources back and forth brings back the Kodi login screen.
On 10.0.2 I had this working line in my /flash/cmdline.txt:
drm.edid_firmware=HDMI-A-1:edid/edid-HDMI-A-1.bin video=HDMI-A-1:D
This does not work anymore.
I ssh'ed into the machine checked the file for existing lines and fired the 'getedid create' command and it added the same line as above.
Original RPi HDMI Adapter, used port close to power plug.
Switched HDMI cables eventhough on 10.0.2 the existing cable worked fine.
What else can I do?
WORKAROUND in Post #2
CEC Problem
Since the upgade I have to toggle CEC Plugin off and on again to make it work.
WORKAROUND from Post #2 seems to fix this as well.
GPOI IQaudio DAC+
Adding this line to /flash/config.txt worked on 10.0.2:
dtoverlay=iqaudio-dacplus
This does not work on 10.0.3 anymore. The audio device won't show up in the list.
ROOT CAUSE of the problem in post #4

My update process was a little rocky: I updated placing the update.img.gz in the .update folder but because I didn't get an image I did a full reset and clean install. After that I restored the whole /STORAGE/ partition from the 10.0.2 version.

Model : Raspberry Pi 4 Model B Rev 1.1
TV: LG 42LW4500

Help would be appreciated. Thank you.

spk-uke · November 21, 2022 at 2:15 PM

Quote

1.
No video output past rainbow splash screen
Switching sources back and forth brings back the Kodi login screen.
On 10.0.2 I had this working line in my /flash/cmdline.txt:
drm.edid_firmware=HDMI-A-1:edid/edid-HDMI-A-1.bin video=HDMI-A-1:D
This does not work anymore.
I ssh'ed into the machine checked the file for existing lines and fired the 'getedid create' command and it added the same line as above.
Original RPi HDMI Adapter, used port close to power plug.
Switched HDMI cables eventhough on 10.0.2 the existing cable worked fine.
What else can I do?

Display More

Okay, I found a workaround (thx yullaw ) [0]:

Added the following to /flash/distroconfig.txt

Code

hdmi_group=1
hdmi_mode=20

Still this is a temp solution because if I understand correctly, distroconfig.txt will be overwritten bei updates.

I have no idea what those values mean but is there a different way to add these settings permanently?

Source: RE: LE 10.0.1 / Rpi4 / No picture after update from LE 10.0.0

**HiassofT** · November 21, 2022 at 4:55 PM Best Answer

As a temporary workaround add the hdmi_group/mode settings to /flash/config.txt, that will survive updates.

They set a different video mode than the usual default (which will later be used during LE startup) which seems to be enough to make the TV happy and show a picture.

so long,

Hias

spk-uke · November 21, 2022 at 9:24 PM

Quote from spk-uke

3.
GPOI IQaudio DAC+
Adding this line to /flash/config.txt worked on 10.0.2:
dtoverlay=iqaudio-dacplus
This does not work on 10.0.3 anymore. The audio device won't show up in the list.

Okay I found the problem:

Because of the cooling chassis I wanted to use an GPIO extension cable (see image).

That caused the DAC to fail. It does work without the cable sitting on a GPIO stack expander (not ideal).

Is this a known issue with RPis GPIO and extension cables?

**Da Flex** · November 21, 2022 at 11:09 PM

Quote from spk-uke

Is this a known issue with RPis GPIO and extension cables?

No. The length of the cable has a relation to electrical resistance, and reduces voltage. A stronger PSU can help to avoid such issues.

**HiassofT** · November 22, 2022 at 12:27 AM

It might be the cable (or the connections between cable and IDC connector) is faulty, such things happen.

so long,

Hias

spk-uke · November 22, 2022 at 2:32 PM

Thanks everybody. Maybe I'll try another cable and a different PSU, though I read it's recommended to use the original one...

I just realized.. I have one more problem that I had for ages already and it corresponds to my CEC problem:

When switching to a different HDMI source on the TV and back, the CEC remote stopped working. Only when I play a media file, the functionality comes back.

Here the cec-client log:

Code

LibreELEC:~ # cec-client
No device type given. Using 'recording device'
CEC Parser created - libCEC version 4.0.7
no serial port given. trying autodetect: 
 path:     /dev/cec0
 com port: Linux

opening a connection to the CEC adapter...
DEBUG:   [              51]    Broadcast (F): osd name set to 'Broadcast'
DEBUG:   [              51]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [              51]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [              51]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [              51]    could not open a connection (try 1)
DEBUG:   [              51]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            1051]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            1051]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            1051]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            1051]    could not open a connection (try 2)
DEBUG:   [            1051]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            2052]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            2052]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            2052]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            2052]    could not open a connection (try 3)
DEBUG:   [            2052]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            3052]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            3052]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            3053]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            3053]    could not open a connection (try 4)
DEBUG:   [            3053]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            4054]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            4055]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            4055]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            4056]    could not open a connection (try 5)
DEBUG:   [            4057]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            5058]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            5058]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            5058]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            5059]    could not open a connection (try 6)
DEBUG:   [            5059]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            6060]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            6060]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            6061]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            6061]    could not open a connection (try 7)
DEBUG:   [            6061]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            7062]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            7062]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            7063]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            7063]    could not open a connection (try 8)
DEBUG:   [            7063]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            8064]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            8065]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            8065]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            8065]    could not open a connection (try 9)
DEBUG:   [            8065]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            9066]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            9067]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            9067]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            9067]    could not open a connection (try 10)
DEBUG:   [            9067]    CLinuxCECAdapterCommunication::Close - m_fd=-1
NOTICE:  [           10068]    connection opened
ERROR:   [           10068]    could not start CEC communications
unable to open the device on port Linux

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This is the log after I started playing a media file and CEC remote worked again:

Code

LibreELEC:~ # cec-client
No device type given. Using 'recording device'
CEC Parser created - libCEC version 4.0.7
no serial port given. trying autodetect: 
 path:     /dev/cec0
 com port: Linux

opening a connection to the CEC adapter...
DEBUG:   [              33]    Broadcast (F): osd name set to 'Broadcast'
DEBUG:   [              33]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [              33]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [              33]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [              33]    could not open a connection (try 1)
DEBUG:   [              33]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            1033]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            1033]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            1033]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            1033]    could not open a connection (try 2)
DEBUG:   [            1033]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            2034]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            2034]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            2034]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            2034]    could not open a connection (try 3)
DEBUG:   [            2034]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            3034]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            3034]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            3034]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            3034]    could not open a connection (try 4)
DEBUG:   [            3034]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            4035]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            4035]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            4035]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            4035]    could not open a connection (try 5)
DEBUG:   [            4035]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            5036]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            5036]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            5036]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            5036]    could not open a connection (try 6)
DEBUG:   [            5036]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            6037]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            6037]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            6037]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            6037]    could not open a connection (try 7)
DEBUG:   [            6037]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            7037]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            7037]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            7037]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            7037]    could not open a connection (try 8)
DEBUG:   [            7037]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            8038]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            8038]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            8038]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            8038]    could not open a connection (try 9)
DEBUG:   [            8038]    CLinuxCECAdapterCommunication::Close - m_fd=-1
DEBUG:   [            9038]    CLinuxCECAdapterCommunication::Open - m_fd=3 bStartListening=1
ERROR:   [            9038]    CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
DEBUG:   [            9038]    CLinuxCECAdapterCommunication::Close - m_fd=3
ERROR:   [            9038]    could not open a connection (try 10)
DEBUG:   [            9038]    CLinuxCECAdapterCommunication::Close - m_fd=-1
unable to open the device on port Linux
NOTICE:  [           10039]    connection opened

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Is there a setting I have to change?

/edit: SOLUTION

I added hdmi_force_hotplug=1 to /flash/config.txt and no it kinda works. Needs some time to get activated (about 5 seconds).