Raspberry Pi Forums

spock

it still doesn't work for me. i am using the CLI. if start omxplayer directly from the command prompt it works. but if i start it from a .sh script (i noticed it doesn't only happen if i put it into .profile) then it doesn't react to any keyboard presses. i have to reset the pi afterwards. does nobo...

spock

cadmium plating?

spock

i have the same problem on all of my raspberry pi 3bs.

seems to only take 1 year or so.

spock

but why would a big.LITTLE CPU be advantageous for spectre mitigation? in my understanding out-of-order execution simply could be disabled in a big core and then power consumption also would go down and be comparable to a little core? so better put in 8 big cores and disable out-of-order execution i...

spock

People would *like* USB3. People would *like* support for more RAM. However, there is nothing to suggest that those features will actually be part of the SoC that goes into the Pi4. It is *speculation* that those features will be present. Now, as it happens, I think there is a decent chance that th...

spock

i am also very excited already even if it still is at least a year away.

i think the main features are pretty much clear (usb3 and support for more ram) but how they will achieve it while keeping backward compatibility (will they?)... i have no idea...

spock

https://www.tomshardware.com/news/raspberry-pi-founder-interview,38585.html "I don’t have a route to do something this year," he said. "I think we kind of understand what featureset we want and what would be involved in getting that featureset. I don't think we have a defined plan for turning that i...

spock

i had the same problem.
https://www.linode.com/docs/databases/m ... -centos-7/
this how-to worked for me (it's for centos but the steps starting from "harden mariaDB server" worked fine for me on raspbian).

spock

hm... strange!

i did it like you and can't esc.

spock

thanks for your answer!

what i forgot to say is that i boot to the cli and not to x.

isn't xterm for x?

spock

i would like to start omxplayer automatically after booting. so i have put it into .profile and it works fine but i also need to be able to quit it with esc. why doesn't this work if i put stuff in .profile? how can i achieve this in a non-complicated way?

spock

@Aydan: oh! i see! i misunderstood the gadget setup.

@aBUGSworstnightmare: sorry, i was refering to Aydan's post.

@DavidS: it's not only a presentation of still images. it should be video with 25fps. but i will look into the SPI nevertheless. thanks!

spock

thanks! the piwall project sounds interesting too.

about that gadget thing... are you sure this would work with a raspberry pi 3 as gadget and zeros as "clients"? since in all tutorials i saw it was the other way around and the zero always was the gadget?

spock

thanks! sounds interesting.

but could i serve a different video to each client with that method?

spock

HDMI.

Code: Select all

hdmi_force_hotplug=1
hdmi_ignore_edid=0xa5000080

thanks! i will try this next time i work on the project.

spock

price isn't my primary concern. i would like to avoid having to deal with 20 (or so) sdcards and linux installations.

any other ideas to make this more convenient? net booting doesn't work with pi zeros right?

(i think at the pihut you can order 2 pi zeros per order (one pi zero + one pi zero w).)

spock

i am doing an art project where i need to display videos on a lot of small screens. i was thinking of waveshare 5" screens with a resolution of 800x480 for example. i would like to avoid having to use one raspberry pi per screen though since that would be quite cumbersome. does anyone know if there ...

spock

currently it's the 4" that gives me trouble.

spock

i don't think that's the issue. i made the correct settings in config.txt according to the waveshare wiki. and if i turn on the screen before the raspberry pi it reliably works. the problem just arises if i power it from the raspberry pi's usb. then the start up order seems to be a bit random and so...

spock

i use various kinds of waveshare screens for my projects. there is one problem though. i think the raspberry pi requires that the screen is switched on before itself gets switched on so that it can recognize it. but i would like to power the screens from the raspberry pi usb so that only one power s...

spock

it's a 5" waveshare display connected per hdmi. yes, the display has a second micro usb port which is supposed to power the raspberry pi but this didn't work reliably for me. it only seems to work reliably if the display has power before the raspberry pi. (i also know this behaviour from my other me...

spock

for an art installation i use a raspberry pi with a 5" hdmi screen. it seems like the raspberry pi doesn't recognize the screen if it doesn't get turned on before the raspberry pi. so to make this fool proof i used a relay which turns on the raspberry pi a few seconds after the screen. it seems to w...

spock

hm... i always was under the impression that qualcomm is much much bigger than broadcom. how could broadcom have bought them?

spock

Heater wrote: ↑
Fri Oct 06, 2017 5:34 pm
I'm not sure what you mean by "stuff just gets copy&pasted thousands or millions of times". Nobody designs like that. Hardware or software.

what i meant is that chips can have a billion transistors but a lot of this number can be things that repeat a lot, like sram cells.

spock

Common ratio - 1 hardware guy needs 5-10 software guys :o interesting. yes, that's the kind of picture i get. :) What kind of hardware are you talking about? Or what kind of software for that matter? mostly i was thinking about designing cpus and gpus. so actually hardware = software (kind of) in t...

Search found 198 matches

Re: starting omxplayer in .profile

Re: AV Connector oxidized

Re: Connector oxidized

Re: Pi 4 questions

Re: Pi 4 questions

Re: Pi 4 questions

Re: Pi 4 questions

Re: MySQL root password?

Re: starting omxplayer in .profile

Re: starting omxplayer in .profile

starting omxplayer in .profile

Re: HDMI splitter?

Re: HDMI splitter?

Re: HDMI splitter?

Re: issue with waveshare screens

Re: HDMI splitter?

HDMI splitter?

Re: issue with waveshare screens

Re: issue with waveshare screens

issue with waveshare screens

Re: strange behaviour when turning on raspberry pi with a relay

strange behaviour when turning on raspberry pi with a relay

Re: The Broadcom + Qualcomm Rumor

Re: is software harder than hardware? :)

Re: is software harder than hardware? :)