Raspberry Pi Forums

tibi38

Dear David,
I found the source of Problems now in a program which was loaded in rc.local.
It stop use of reboot shutdown etc.
After removing program from rc.local all cmds are useable.
So it is not related to kernel, i guess.

tibi38

Hi,
I have actually the Problem with not function of shutdown / reboot etc....
which file will fix it?
How to install it?

tibi38

Dear all a nice christmas time,
I tried to get it run on my pi, but every time I start in SDL2-image the showimage programm I run in the error-message:
SDL_CreateWindowAndRenderer() failed: No available video device

what is wrong in my environment?

br
TB

tibi38

the solution I found is
apt-get download libmysqlcppconn
and the use pgkt to install it

tibi38

Dear, I try to build an application with OpenMaxIL and MySQL CppConn. Now I run in trouble with the apt-get tool. When I like to build the OpenMaxIl I need Boost 1.50. So I install it. Then I like to install the libmysqlcppconn-dev package with apt-get and then it deinstall the boost 1.50 and instal...

tibi38

Thanks a lot for this clear Information about omxplayer.
This realy help to understand the behavior.
I'll try it.
Best regards
Tibi

tibi38

I need a library, not a program.
On which lib base the omxplayer? As I could read, it is the ffmpeg. So there seems to be the same way.

tibi38

Hello,
I rebuild X264 and ffmpeg in the way as it was described on the ffmpeg-site-pages.
when I start ffplay to show a mpeg4-video (without sound) it is to slow. It only Plays 0.5 Frames per second in full-hd.
How should I set the Parameters by compiling or which misstake had I done?
Br
Tibi

tibi38

Hallo, die Genauigkeit der schwarz/weiß-Messung kann runter bis auf 1/10mm gehen. Ist Abhängig vom Aufbau und Fertigungstoleranz. Besser als schwarz/weiß ist zum Beispiel silber/schwarz (reflektierend oder nicht) Du kannst aber auch die Tiefe direkt ablesen, wenn du binaere Streifen mit einer Scan-Z...

tibi38

Hallo,
hat jemand schon einen UTMS / 3G-Stick (Huawei zum Beispiel) mal in Betrieb genommen. Wenn ja, nach welcher Anleitung?
Danke

tibi38

Is there a raspberry compilation of the Mysql C-Connector 6.1 avaible?
Thanks for your help

tibi38

Hi,
you wrote QT5. How can I set up the qt5 on raspberry / debian ? Is any guide avaible to setup the environment?
Thanks in advance

tibi38

du schickst auf dem I2C die Adresse des Moduls, dann die registernummer und dann die 2 datenbytes zum schreiben

tibi38

Also, die Auflösung kann ich über SDl genau abfragen, das funktioniert ganz zuverlässig. Allerdings wird die wohl nur beim Init durchgeführt ;-(
Das klappt auch, wenn man Xwindows remote ausführt.

tibi38

Sorry,
I missunderstand why it is a problem to have both connected and with a ip-adressed at the same time.
At my home it is all the time working (wifi and cable connected). I can use putty to connect both networks. Also at the same time. There is no problem (if you had a good power supply).
br

tibi38

hallo mline,
danke für die Infos. Ich werde mir das mal anschauen und meine Ergebnisse hier posten.
Gruß

PS: Es geht darum festzustellen, ob der PI läuft und der Bildschirm nicht -> dann kann der PI abgeschaltet werden...

tibi38

Hallo,
wie kann ich feststellen, das ein HDMI-Monitor angeschlossen und in Betrieb ist? Und das nicht nur während der Boot-Phase. Hat einer eine Idee?
Gruß

tibi38

I'm interested too.

tibi38

Im Datenblatt sthet die Init-Sequence wie folgt. Hast du diese Schritte nun alle drinnen? Vor allem die Wartezeit im letzten Schritt? Initialization Sequence Refer to Figure 9, “Initialization Sequence,” on page 21. To initialize the device: 1. Supply VA and VD. 2. Supply VIO while keeping the RST p...

tibi38

Thanks for the background information.
I'll now switch over to OpenVG

tibi38

Now, it is linkable. But it shows nothing.
So I start with a workaround: I use C in a service for the presentation layer and a c++-program for the rest. Means, I give up to mix a C and a C++ here

tibi38

hi rst,
I found the root cause: The missing ttf-file in the directory

tibi38

Dear rst, i'm now a little bit farther and can compile and link a small sample. (I use extern "C" to include the header files, after that I could link the files) But now I got only an assert at s==0 GRAPHICS_RESOURCE_HANDLE img; uint32_t width, height; int LAYER=1; bcm_host_init(); int s,t,u; char c...

tibi38

Hi, I tried to use OpenVG in a C++-Programm. I had setup the OpenVG correct (rebuild.sh works fine and I could start also the compiled demos like world_font.bin). By linking my programm I add the libs and the path. But it brings me every time the error: undefined reference to `gx_graphics_init(char ...

tibi38

I'm using g++ to compile the program with the fltk lib.
The result is: Could not find device.Now I tried to start it after loading startx and then it works.
But I like to start the programm without first loading the startx

Search found 42 matches

Re: Binaries and source for 64 bit kernel for RPI 3

Re: Binaries and source for 64 bit kernel for RPI 3

Re: How To Install & Use SDL2 on Raspbian PI

Re: [solved]OpenMax with MySQL

[solved]OpenMax with MySQL

Re: ffplay / ffmpeg

Re: ffplay / ffmpeg

ffplay / ffmpeg

Re: Analoge Sensoren zur messung der Eintauchtiefe

3G Stick

New Connector C 6.1 - MySQL

Re: Qt5 QGLWidget issues

Re: SI4703 (FM-Radio-Modul) mit Raspberry Pi ansteuern

Re: HDMI detect

Re: Network Problems with Ethernet and WiFi Both Configured

Re: HDMI detect

HDMI detect

Re: New Debian download info please?

Re: SI4703 (FM-Radio-Modul) mit Raspberry Pi ansteuern

Re: TinyX

Re: how to use OpenVG with C++

Re: how to use OpenVG with C++

Re: how to use OpenVG with C++

how to use OpenVG with C++

Re: TinyX