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.

learn more… | top users | synonyms

0
votes
0answers
41 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.
0
votes
1answer
30 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 '...
0
votes
1answer
36 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
votes
1answer
594 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?
0
votes
2answers
87 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 ...
0
votes
2answers
84 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."
1
vote
1answer
74 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 ...
1
vote
1answer
110 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 ...
0
votes
0answers
52 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
votes
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 ...
0
votes
0answers
73 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 ...
1
vote
1answer
449 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?
1
vote
1answer
78 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 ...
0
votes
1answer
51 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 ...
0
votes
1answer
319 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 ...
2
votes
1answer
64 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?
0
votes
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 ...
1
vote
1answer
151 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, ...
0
votes
1answer
113 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 ...
0
votes
0answers
80 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 ...
1
vote
2answers
511 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=...
1
vote
0answers
544 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 ...
0
votes
2answers
298 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 ...
0
votes
0answers
91 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), ...
2
votes
2answers
51 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 ...
1
vote
1answer
1k 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=...
1
vote
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
votes
1answer
55k 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
202 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
246 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
864 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
109 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
365 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
960 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
14k 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
725 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 ...
0
votes
2answers
138 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
850 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....
4
votes
2answers
7k views

Raspbmc + HDMI + AV receiver = screen changes resolutions

This is my setup: Raspberry Pi w/Raspbmc 8GB Transcend SDHC card Yamaha RX-V1900 receiver Westinghouse 40" flat panel TV When the Pi is directly connected to the TV by HDMI, the output is sharp (...
1
vote
2answers
9k views

Why do I not have a /boot/config.txt fle?

I have a Raspberry pi B, and downloaded and installed "2012-10-28-wheezy-raspbian.img." I am using a 3.5 inch VGA TFT-LCD monitor, where the tiny font was hard to read, but I have managed to increase ...
16
votes
4answers
17k views

How do I increase the terminal font size?

I have a Raspberry pi B, using Debian, just rigged up with a 3.5 inch TFT-LCD monitor via VGA. The text size in command line mode is too small to read, so I would like to increase its size, and one ...
5
votes
1answer
3k views

Problems with Raspberry Pi Resolution

I recently purchased a Raspberry Pi and I hooked it up to my 22" Acer monitor. The monitor has a resolution of 1680x960. I tried several resolutions in the config.txt and some of them make the ...