Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [config.txt]

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.

39
votes
2answers
125k 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 ...
13
votes
1answer
54k 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 ...
22
votes
3answers
12k views

Why won't my Raspberry Pi overclock?

I edited the file /boot/config.txt to increase the CPU speed to 800MHz. dmesg includes the following line bcm2835-cpufreq: Freq 800000->700000 (min=700000 max=800000 target=700000 request=700000) ...
19
votes
4answers
21k views

Easiest way to return to a known good state when overclocking

If I try to overclock my Pi, I want to go up to the point where the Pi won't boot anymore, or won't be stable enough. At this point, I want to come back to the latest known good settings for the /...
7
votes
2answers
6k views

File config.txt with multiple lines is not working

I've been trying to get XBMC (Raspbmc to be exact) working om my Raspberry Pi. After hours of work and a lot of stupid mistakes (who knew FAT32 wasn't made for Linux), I made it work. But now I'm ...
17
votes
4answers
33k 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 ...
4
votes
4answers
21k 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 ...
3
votes
1answer
2k views

Set HDMI refresh rate

I would like to set my HDMI refresh rate to 100 MhZ as supported by my TV, however using the code below always set it to 60 MhZ: hdmi_group=1 hdmi_mode=40 Any idea why or suggestions on how to ...
2
votes
2answers
19k 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 ...
0
votes
1answer
21 views

Raspberry PI config.txt gets recreated and the custom modifications ignored

I have encountered a similar problem to; Can't Access TTY: Job Control Turned Off I followed the solution by adding avoid_safe_mode=1 to config.txt but somehow the config.txt gets recreated and ...
0
votes
1answer
2k views

Raspberry Pi B+ Overclocking: Force Turbo not working [Solved: Undervoltage Problem]

Good day, I am overclocking my raspberry pi. I have selected the turbo option from the raspi-config. I have found out however that the Pi was not running consistently at 1GHz. I have tried setting ...
0
votes
1answer
183 views

Does hdmi_cvt need the '=' in config.txt?

I've got an HDMI touchscreen for my Raspberry Pi, and the instructions say to add the following to the end of the config.txt file: max_usb_current=1 hdmi_group=2 hdmi_mode=1 hdmi_mode=87 hdmi_cvt ...
0
votes
1answer
1k views

Trying to autorun Paho MQTT client script on boot up

I am running a Paho MQTT client on my raspberry pi (Stretch OS). This script recieves MQTT messages from a publisher script and then stores the data in a SQL database. As I added client.loop_forever() ...