This file is parsed by the GPU before the initialisation of the ARM core. It can be used to set various parameters to alter the behaviour of the system, such as display resolution or overclocking settings.

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53 views

Video Composite android tv raspberry pi

I downloaded and installed android tv on my raspberry pi (link here) and tuned off the hdmi hot plug but it does not seem to display. what am i doing wrong?
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1answer
25 views

Windows 10 IoT Core, Pi 3 Config.txt

Where should I place my config.txt for my Windows 10 IoT Core Raspberry Pi 3 setup? I was reading this, but didn't know for sure if I am simply supposed to place it in the root of the SD card or not?
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1answer
28 views

Is 'dwc2' limited to USB direct connections?

The instructions for setting up a direct-connect RPi Zero over USB have me add dtoverlay=dwc2 on a new line to `config.txt', and insert modules-load=dwc2,... in cmdline.txt. Are these settings ...
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1answer
55 views

Make a Lightweight Linux

I need a Lightweight or Simple Linux and run in my RaspberryPi. For the first, download a kernel file and Run make menuconfig: According to the image, I don't understand .config file and config ...
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0answers
52 views

edit config.txt file for audio out hdmi to dvi-d rasp pi3 ubuntu mate 16.04

I am looking for a tutorial on how to edit config.txt files so I can enable audio out on hdmi to dvi-d monitor. Can someone help? Thank you.
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1answer
47 views

over_voltage possible values

Does anyone know this configuration 'over_voltage': What does it do? How can I configure it? (using config.txt and write the value?) What are possible values? What is the difference between it and '...
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votes
1answer
40 views

Raspberry Pi resetting across reboots [duplicate]

My RPi 3 seems to have run into a strange problem. Everytime I reboot it, it seems to reset all my settings, namely Keyboard layout and taskbar icons some other setting as well. Also if after a ...
0
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1answer
780 views

`arm_freq` in config.txt on Raspberry Pi 3 model B

I would like to know if it is safe to edit the config.txt file on a Retropie image to change the arm_freq=800 to arm_freq=1200 since it will be running on a R-pi 3 model B?
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2answers
96 views

Raspberry Pi HDMI not Working

I have a Raspberry Pi 3 & a Windows 10 PC. I have extracted the NOOBS file and saved the extracted file on an SD Card. I tried to do the first boot on my Raspberry Pi with the SD Card inserted and ...
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2answers
106 views

“chmod u+w config.txt” results in “Operation not permitted.”

I am trying to use chmod to allow me to change config.txt. I am using NOOBS on the Raspberry Pi Zero. chmod u+w config.txt results in "Operation not permitted."
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1answer
84 views

config.txt : Hostname

As you might have guessed from the title, I would like to know if it is possible to change a RasPis hostname from the config.txt file on the SD card. I'm making a lot of SDs from a custom image, and ...
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1answer
112 views

How to Create shortcut that appends text to /boot/config.txt

I am trying to do the following with a shortcut on the Desktop : echo "dtoverlay=pi3-miniuart-bt" >> /boot/config.txt systemctl disable hciuart I have tried to put it in a script but when I ...
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0answers
62 views

Signal from Pi not recognized by DP monitor

I'm trying to switch Raspberry Pi to a new monitor, but monitor complains about not getting HDMI signal. The old monitor was attached via HDMI-DVI cable, while new monitor has HDMI-HDMI cable and then ...
0
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1answer
63 views

Raspian Wheezy config.txt overclocking

I looked on the Raspberry Pi documentation here and I was trying to overclock my Raspberry Pi 2. But on the documentation page, I found options like force-turbo and other options that I didn't find in ...
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0answers
86 views

HDMI screen issues at boot

I am using an Adafruit 5" HDMI 800x480 touch screen. In the Adafruit learning center instructions for the screen, it specifies that you may need to change the config.txt around in order for things to ...
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1answer
580 views

How to find the config.txt on noobs

I am trying to use an hdmi screen with my pi but in order to do that I need to go into the config.txt... I cannot find the config.txt in my NOOBS sd card. Is there a way to find that or make one?
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1answer
89 views

I'm having trouble setting up my config.txt file to work with hdmi display

I plugged in my pi to my hdmi screen and I've been getting a screen with just lines on it going up to down. It makes sense as this hdmi screen does not have a video scaler so unless you get the ...
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1answer
53 views

changes in config.txt are not applied

I edited the /boot/config.txt file to adapt to my monitor settings: # uncomment if you get no picture on HDMI for a default "safe" mode hdmi_safe=1 and hdmi_mode=58 But when I reboot, the hdmi ...
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1answer
354 views

How to install Ubuntu MATE without HDMI output?

I'm new to Raspberry Pi 2, I just bought a Raspberry Pi 2 1.1, I don't have a TV or monitor with HDMI input, so I have to install Ubuntu MATE without it, is there any way to use composite video? i ...
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1answer
66 views

Used raspi-config for i2c option

I used: sudo raspi-config to select the I2C option but it got into the config.txt file appended to the previous line. I since fixed that, but want to know what I did wrong or is it a bug?
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0answers
14 views

NOOBS on RasPi 2 Model B - No Display, No Config [duplicate]

I have installed NOOBS on an 8GB microSD Card. When I plugged it into the RasPi, there is no display on my monitor. It says "no signal", but the RasPi is booted up as seen with the RED and GREEN ...
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1answer
156 views

Blank screen on first boot, screen appears in second boot

I am using Raspberry pi 2 with kernel version 3.18.11-v7+ and HDMI to VGA converter to connect to Monitor. Every time I disconnect the power supply and boot, blank screen appears. When I reboot, ...
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1answer
138 views

What h264_freq do I need to to improve video latency for h.264 on rpi 2 B?

I'm looking at the following links to help modify my config.txt file: https://www.raspberrypi.org/documentation/configuration/config-txt.md http://elinux.org/RPiconfig In there I see that the GPU ...
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0answers
83 views

Reload Display CVT Settings into Custom Mode Without Restart

I am making a DVI generator which will sweep video output resolution and framerate. I am able to add a custom CVT mode via the hdmi_cvt option in config.txt, but in order to load it into the custom ...
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2answers
560 views

Why is the L2 cache disabled by default on Raspbian Jessie?

When I ran vcgencmd get_config int to check if max_usb_current was applied, I noticed a peculiar line on the output: pi@srv0 ~ $ vcgencmd get_config int arm_freq=1000 config_hdmi_boost=5 core_freq=...
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577 views

Custom HDMI mode Raspberry Pi 2

I'm new to the Raspberry community and I'm trying to get the Raspberry to display on my iMac through Target Display Mode (TDM). This works fine, but only up to 720p, since the iMac can only work in ...
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2answers
320 views

Kernel log ONLY on serial console (UART)

How to configure kernel, config.txt and cmdline.txt to get all kernel logs (starting from boot) in serial console (UART) only? To clarify: I don't want to see any kernel log on HDMI monitor I don't ...
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0answers
100 views

RCA output of Pi in black and white

I got a Pi recently, and when trying to use the RCA socket, only got a black and white picture on the TV, it's also blurred. I changed my config.txt to have sdtv_mode set to 2 (PAL, I'm in the UK), ...
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2answers
52 views

Latency variation

I have a problem using my raspberry pi 2 for applications that need low latency. I wrote a c++ GPIO routine that reads a high resolution quadrature ttl encoder. It then updates a counter and adds it ...
3
votes
1answer
1k views

How do I generate/configure config.txt for raspberry Pi2 using Yocto?

I am using Yocto to build a custom image for my Raspberry Pi2. Followed this tutorial in portuguese and this one in english. QUESTION 1: Why my config.txt (added by hand) isn't loaded? I was able to ...
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1answer
2k views

Raspberry Pi 2: HDMI resolution to 1280x1024 60 hz

I tried setting the resolution 1280x1024 60hz unsuccessfully in Debian Jessie (AlienDeb) I use the config /boot/firmware/config.txt: hdmi_ignore_edid=0xa5000080 hdmi_drive=2 hdmi_group=2 hdmi_mode=...
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0answers
1k views

Retropie Retroarch Emulator PSX and N64 too small resolution

I'm new to the Raspberry Pi and just got a RP2, with a retropie image. I installed an N64 and PSX rom to test it out and they work perfectly BUT for the size on my 40" 1080p TV. This is what I get: ...
22
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1answer
58k views

Is setting `max_usb_current=1` to give more power to USB devices a bad idea?

I've been searching around for more information on the /boot/config.txt configuration directive max_usb_current, trying to find out exactly what happens when that is set to 1, but it's hard to find ...
2
votes
1answer
204 views

RPi Model B 512 MB--FreeBSD--text running off screen

I am having a problem with FreeBSD, wherein I cannot get the text to be constrained within the area of a TV (composite). I have been using framebuffer_height and framebuffer_width in /boot/msdos/...
3
votes
1answer
248 views

Default resolution change between firmware versions

I just updated my Pi image so that I could use the Raspberry Pi B+ and there was a subtle change regarding the default resolution that the Pi uses when it is not plugged into any monitor at boot time ...
1
vote
0answers
903 views

Boot config.txt is ignored

Problem The /boot/config.txt file is being ignored when the Raspberry Pi boots up. As such, overscan and overclocking settings are not taking effect. What I've tried Some reported that the line ...
0
votes
1answer
1k views

MicroSD correct partition to edit config file, problems in Windows

I'm very familiar with the UNIX command line (on Linux, Mac OS X, etc.) and have been messing with my pi here and there. Current project is to set it up so I can ssh from any computer into the world ...
0
votes
1answer
112 views

Problem with underscan

I just got my B+, and installed the newest version of Rapsbian. I am using an adapter box display it on my VGA monitor. For some reason, when I try to adjust the overscanning variables in config.txt, ...
2
votes
2answers
381 views

Supporting multiple monitor EDID override profiles

I would like to be able to switch my Pi between several different physical monitors that I have (one at a time). The screens are not all the same type or resolution. For most of the monitors, the Pi'...
5
votes
1answer
18k views

Calibrate overscan settings

There are options to adjust the the overscan settings in /boot/config.txt. # uncomment this if your display has a black border of unused pixels visible # and your display can output without overscan ...
0
votes
1answer
999 views

How to edit a /etc/ssh text file as an owner [closed]

I want to update a line in the sshd_config as this line is causing termination to any SSH connection. I have to edit it manually not using the command window, so I opened the text file and updated it, ...
3
votes
3answers
15k views

How to override config.txt settings during boot?

From the default NOOBS installation I have installed Raspbian. It seems NOOBS has added some settings to the config.txt file, where one of them is: hdmi_force_hotplug=1 which forces video to be on the ...
4
votes
1answer
2k views

REALLY force Raspberry Pi to send audio via HDMI

I wanted to use my Raspberry Pi with a very old video projector which was not capable of processing audio signals. So I bought an HDMI-audio-extractor (Ligawo 6518725 HDMI Extractor), as the PWM ...
1
vote
1answer
733 views

HDMI worked in another display, stopped working now on a LG!

My Raspberry Pi Model B Board works with RCA output, but do not work with HDMI, after it shows the splash screen. (curiously enough, it shows the splash screen, then a white screen with an option to ...
2
votes
2answers
2k views

NOOBS shows black screen unless I switch to to another video setting and then back to HDMI

When I first boot my Raspberry Pi into NOOBS, I get a blank screen until I push keys 3 or 4 and then select 1, switching it to HDMI again. Then, it works fine and I can install Raspbian, but after I ...
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2answers
139 views

Is there a way of making raspi-config verbose?

I am wanting to configure a RaspberryPi without using the raspi-config gui. Is there a way to do this, or at least get raspi-config to spit out the commands its running. If not, is there a list of ...
5
votes
1answer
24k views

HDMI output for 1080p

Need the right configuration to set the standards for the config.txt file to set an PAL LCD 1080p. I have tried hdmi_group set to 0, to use the preferred group. That tweak gave me sharp text although ...
2
votes
2answers
866 views

How do I automate removal and re-enabling overscan as I move the pi between HDMI and TV?

I use my Pi (with raspbian) in two locations, at the desk I have a DVI-D monitor hooked to the HDMI output and in the livingroom there is a big old thick television using PAL composite.. I would like ...
2
votes
1answer
2k views

Rasberry Pi corrupts the SD Card often

I currently start using different Raspberry Pis to monitor my (wifi) network. (OS: Raspbian) Unfortunately one Pi often corrupts the SD Card and I definitely don't just plug off the power cable. It ...
2
votes
2answers
2k views

How is memory split by CMA?

The post at http://www.raspberrypi.org/phpBB3/viewtopic.php?f=29&t=19334&p=218282&hilit=cma#p217665 mentions that:- gpu_mem_512=316 cma_lwm=16 cma_hwm=32 In the above ARM has 96M always....