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by apparat
Sun Sep 22, 2019 2:13 am
Forum: Troubleshooting
Topic: Pi rejects to reboot and always needs 3-30s cooldown
Replies: 6
Views: 187

Re: Pi rejects to reboot and always needs 3-30s cooldown

I just tried my Pi4 - I pulled the power lead out of the socket on the Pi and put it back in as fast as I could and it rebooted fine I've updated my eeprom, sudo reboot and selecting reboot from the shutdown menu works for me. Just a FYI post Thanks to mattmiller and alphanumeric for trying that ou...
by apparat
Thu Sep 19, 2019 3:19 pm
Forum: Troubleshooting
Topic: Pi rejects to reboot and always needs 3-30s cooldown
Replies: 6
Views: 187

Re: Pi rejects to reboot and always needs 3-30s cooldown

Are you switching off at the wall socket, or unplugging the power supply from the Pi? Unplugging the Power Supply from the Pi (Mechanical switch between PSU and USB 5V) (Hard Reset) # reboot # reboot -f # shutdown -r now doesn't work (Soft Reset). It shuts down flawlessly, stops all daemons, syncs ...
by apparat
Thu Sep 19, 2019 1:05 am
Forum: Troubleshooting
Topic: Pi rejects to reboot and always needs 3-30s cooldown
Replies: 6
Views: 187

Pi rejects to reboot and always needs 3-30s cooldown

My Pi4 does not reboot; neither soft nor hard. It is necessary to let the Pi "cool down" by switching off the supply voltage for at least 3 seconds until it boots again fine. If powered up immediatly after switching off, the green LED flashes once and nothing more happens. I tried different images, ...
by apparat
Sun Aug 04, 2019 10:37 pm
Forum: Graphics, sound and multimedia
Topic: HDMI to CSI-2 via TC358743 on kernel 4.1
Replies: 604
Views: 192656

Re: HDMI to CSI-2 via TC358743 on kernel 4.1

Is it possible to access the uncompressed frames from within yavta but still h264-encode to a file/socket? I'm using yavta to stream the output of a pc to a server with more computational power for ocr with tesseract. Instead of using a full streaming protocol, I just modified yavta to write the raw...
by apparat
Thu Jul 18, 2019 10:57 am
Forum: General discussion
Topic: Custom partition layout
Replies: 1
Views: 85

Custom partition layout

Is it recommended to manually create a partition layout on the sd card? I created a fat32 and two ext4 partitions and copied everything from the downloaded image (raspian) file at file system level. I noticed that the first partition of the raspian image starts at position 8192. Does the preceeding ...
by apparat
Sun Jun 16, 2019 9:26 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: GPU RAM Interface
Replies: 1
Views: 294

GPU RAM Interface

Hello, has the GPU a higher memory bandwidth to RAM than the CPU or do they share a common bus? Do GPU Accelerated media players like omxplayer write the decoded Video stream to DDR RAM at any time is it done completely inside the GPU and written directly to the internal hdmi frame buffer? Thanks fo...

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