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by gvkalra
Tue May 21, 2019 2:43 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: DSI display and CSI camera conflict
Replies: 11
Views: 744

Re: DSI display and CSI camera conflict

Thanks for all the suggestions! I requested a friend to help me modify the DSI display connection and power it with an external PSU instead of drawing power from RPI's DSI port. The modification was successful, however, it still didn't solve the problem. The camera was not working along with the DSI...
by gvkalra
Thu May 16, 2019 8:22 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: DSI display and CSI camera conflict
Replies: 11
Views: 744

Re: DSI display and CSI camera conflict

I borrowed the official 7" Touchscreen display from a friend (just to test things further) https://i.imgur.com/HB3lpPY.jpg Observations: CSI camera works with the official display However, there's a thunderstorm icon on the display I used an external DC power supply (fixed at 5V). https://i.imgur.co...
by gvkalra
Thu May 16, 2019 2:33 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: DSI display and CSI camera conflict
Replies: 11
Views: 744

Re: DSI display and CSI camera conflict

I also compared the output of raspi-gpio get (obtained while connected to the raspi via ssh) Left column is screen-connected. Right column is screen-disconnected: https://i.imgur.com/A99Akrx.png There are two differences: GPIO 34 SCREEN-CONNECTED GPIO 34: level=1 fsel=7 alt=3 func=SD1_CLK SCREEN-DIS...
by gvkalra
Thu May 16, 2019 1:32 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: DSI display and CSI camera conflict
Replies: 11
Views: 744

Re: DSI display and CSI camera conflict

Here's the list of loaded modules. It seems that vc4-kms-v3d driver is not one of them. $ lsmod Module Size Used by rfcomm 49152 4 bnep 20480 2 fuse 110592 3 hci_uart 40960 1 btbcm 16384 1 hci_uart serdev 20480 1 hci_uart bluetooth 385024 29 hci_uart,bnep,btbcm,rfcomm ecdh_generic 28672 1 bluetooth ...
by gvkalra
Wed May 15, 2019 12:27 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: DSI display and CSI camera conflict
Replies: 11
Views: 744

Re: DSI display and CSI camera conflict

Does the display work by itself? Note, neither of those devices are official, so support from Raspberry Pi will be minimal. Yes, the display works by itself. Hmmm, what intrigues me is: 1. Display works by itself 2. Camera works by itself 3. Together, they don't work (atleast not out of the box) An...
by gvkalra
Wed May 15, 2019 10:52 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: DSI display and CSI camera conflict
Replies: 11
Views: 744

DSI display and CSI camera conflict

Hi, I am trying to use the following two peripherals together: Display (DSI): https://www.dfrobot.com/product-1784.html Camera (CSI): https://www.icbanq.com/P007454353 With DSI display disconnected (and using HDMI display), CSI camera works well: $ raspivid -f -v "raspivid" Camera App (commit 7cbfbd...

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