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by renice123
Wed Dec 11, 2019 9:33 am
Forum: Troubleshooting
Topic: Pi4 solid red and green led
Replies: 46
Views: 11669

Re: Pi4 solid red and green led

It seems to me that if we want to find out what happens when the "green LED of death" appears, then we need to provide more technical information. For example, the following questions immediately arise. 1. Which memory card was used (and even on which card reader the image is recorded). 2. Which cas...
by renice123
Tue Dec 10, 2019 7:34 am
Forum: Troubleshooting
Topic: Keyboard layout 2 language
Replies: 2
Views: 206

Re: Keyboard layout 2 language

This is an old Debian window manager issue The decision is not complicated. First, set the language settings in the panel, add a button to switch languages. But do not close these settings! Just leave the language preferences panel to work in the window. Then click on any empty place in the top pane...
by renice123
Mon Dec 09, 2019 9:56 am
Forum: Troubleshooting
Topic: Pi 4B with DVi or vga
Replies: 5
Views: 505

Re: Pi 4B with DVi or vga

I use the hdmi> DVI adapter and it works great on all my Raspberries. However, I know that there are known issues related to the appalling quality of Chinese cords. hdmi> DVI - sometimes manufacturers don’t even solder the required pins Also, the problem may be in the non-standard resolution of your...
by renice123
Mon Dec 09, 2019 7:47 am
Forum: Troubleshooting
Topic: What cause my pi4 to strangely reboot ?
Replies: 12
Views: 754

Re: What cause my pi4 to strangely reboot ?

Good day. I looked at the data in your kern.log file Namely the following lines mmc0: Timeout waiting for hardware interrupt. (entry dated December 1) You have a lot of these notes, which surprised me. Then I looked in Google for a message about the problem, I found that the problem is common. By th...
by renice123
Sun Dec 08, 2019 12:11 pm
Forum: Troubleshooting
Topic: What cause my pi4 to strangely reboot ?
Replies: 12
Views: 754

Re: What cause my pi4 to strangely reboot ?

I must disappoint you, it was about Samsung EVO + cards that were reported as problematic  in some forums. I know these are popular cards from Raspberry owners, but alas, such messages are coming. I quote from the link: "Interestingly this only occurs with a 64gb Samsung EVO microSD card. The card p...
by renice123
Sat Dec 07, 2019 4:31 pm
Forum: Troubleshooting
Topic: What cause my pi4 to strangely reboot ?
Replies: 12
Views: 754

Re: What cause my pi4 to strangely reboot ?

As far as I understand, your logs report problems with the sd card. On the links below there is a description of a similar problem, is this an old Linux problem that suddenly suddenly “appeared” on Buster? https://www.raspberrypi.org/forums/viewtopic.php?t=123261 Here they write about the same https...
by renice123
Fri Dec 06, 2019 4:24 pm
Forum: Troubleshooting
Topic: RPi 4 booting issues (stops booting after apt-get update)
Replies: 8
Views: 491

Re: RPi 4 booting issues (stops booting after apt-get update)

Try to remove the sd memory card from the slot and turn on Raspberry.
In this case, the green LED should blink several times. The red LED should also light.
If the green LED does not blink without a memory card, then this is a raspberry critical error.
by renice123
Fri Dec 06, 2019 3:25 pm
Forum: Troubleshooting
Topic: Pi4 solid red and green led
Replies: 46
Views: 11669

Re: Pi4 solid red and green led

Thanks for the comprehensive information! I believe in RPI and am very happy that another difficult chapter in the history of the new microcomputer is somehow starting to reveal its secrets! I think that now some people affected by the "green death LED" can take advantage of your decisions. And we c...
by renice123
Fri Dec 06, 2019 3:20 pm
Forum: Troubleshooting
Topic: Writing to an External Drive from the network
Replies: 8
Views: 308

Re: Writing to an External Drive from the network

It seems to me that you are an experienced Linux user, so I am not comfortable giving advice. And Apple computers are not very popular in our country, that's why I’ve only met with Mac OS all my life a few times (and that’s because I was fond of BeOS). However, here they write that you can configure...
by renice123
Fri Dec 06, 2019 3:00 pm
Forum: Troubleshooting
Topic: Pi4 - 4GB (rev. 1.1) Freezes [Attempted troubleshooting]
Replies: 20
Views: 3794

Re: Pi4 - 4GB (rev. 1.1) Freezes [Attempted troubleshooting]

I will venture again to provoke fire on myself and propose the following solutions. If you have such a hopeless situation, then it makes sense to experiment in the next direction. These are experiments, and I don’t know whether such experiments can be considered justified in other cases. But it seem...
by renice123
Fri Dec 06, 2019 7:22 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 not working.
Replies: 11
Views: 680

Re: Raspberry Pi 4 not working.

As far as I remember, RPI engineers wrote on the forum that if you add more than 512 Mb to the config.txt GPU file (I may be wrong in the numbers), then Raspberry may not load correctly. As I understood from the messages of the programmers of the developers, in the fourth version of Raspberry there ...
by renice123
Fri Dec 06, 2019 7:09 am
Forum: Troubleshooting
Topic: Writing to an External Drive from the network
Replies: 8
Views: 308

Re: Writing to an External Drive from the network

Good day! I think this question does not concern many people. By tradition, Linux systems often use NFS (or any other protocols with this or that functionality) precisely to prohibit accidental or intentional writing to network file systems. Yes, security policy is sometimes annoying, but it’s secur...
by renice123
Fri Dec 06, 2019 6:54 am
Forum: Troubleshooting
Topic: Pi4 solid red and green led
Replies: 46
Views: 11669

Re: Pi4 solid red and green led

Could you tell us in detail how you solved the problem of the “green deadly LED”? As far as I understand, you had the problem described above: after turning on the Raspberries, the green and red LEDs constantly glowed and nothing happened further. But after you created the Rasbian image on another c...
by renice123
Thu Dec 05, 2019 8:25 am
Forum: Troubleshooting
Topic: (another) Wifi issue
Replies: 11
Views: 854

Re: (another) Wifi issue

Since all Raspberries are the same (from the point of view of preinstalled software, unless another distribution kit is used), we can assume that the command of one user for standard blowing is suitable for another user =) Here is my conclusion to the commands This is abbreviated, I removed the exce...
by renice123
Wed Dec 04, 2019 7:15 pm
Forum: Troubleshooting
Topic: Pi 4, Display - No Input, hdmi_safe=1, irregular green blinks
Replies: 4
Views: 344

Re: Pi 4, Display - No Input, hdmi_safe=1, irregular green blinks

You can try replacing the hdmi cable to the monitor. Sometimes it helps. Do you connect the monitor to the first hdmi output? There is another interesting feature of Raspberries of the fourth version: first you need to turn on the monitor, and then turn on the Raspberries. Otherwise, Raspberry will ...
by renice123
Wed Dec 04, 2019 7:03 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 not working.
Replies: 11
Views: 680

Re: Raspberry Pi 4 not working.

The red LED should always be on. This is a power indicator. If the green LED is constantly on, then this is a problem. Constantly on green LED - Raspberry is not working. Try another hdmi cord. Sometimes they are of poor quality. If the green LED flickers randomly, it means that the OS is loading an...
by renice123
Wed Dec 04, 2019 6:16 pm
Forum: Troubleshooting
Topic: No signal on HDMI port to Monitor
Replies: 7
Views: 670

Re: No signal on HDMI port to Monitor

do the default settings not work? # For more options and information see # http://rpf.io/configtxt # Some settings may impact device functionality. See link above for details # uncomment if you get no picture on HDMI for a default "safe" mode #hdmi_safe=1 #hdmi_group=2 #hdmi_mode=36 # uncomment this...
by renice123
Wed Dec 04, 2019 5:58 pm
Forum: Troubleshooting
Topic: (another) Wifi issue
Replies: 11
Views: 854

Re: (another) Wifi issue

Of course, shielding always degrades communication. Especially if wi-fi is in the 5 GHz range. And by the way, my connection to 5 GHz was broken, the window also “disappeared”. I solved the problem by increasing the power of the router (I indicated in the settings to increase the power of the transm...
by renice123
Wed Dec 04, 2019 1:18 pm
Forum: Troubleshooting
Topic: (another) Wifi issue
Replies: 11
Views: 854

Re: (another) Wifi issue

Try to check the status of your network on the command line in the terminal Start simple, these packages work by default dpkg -l | grep wpasupplicant dpkg -l | grep wireless-tools is everything right? ifconfig -a wlan0? iwlist scanning | grep "IEE" WPA2? iwlist scanning | grep "ESSID" network name i...
by renice123
Wed Dec 04, 2019 8:29 am
Forum: Troubleshooting
Topic: Pi4 - 4GB (rev. 1.1) Freezes [Attempted troubleshooting]
Replies: 20
Views: 3794

Re: Pi4 - 4GB (rev. 1.1) Freezes [Attempted troubleshooting]

Put a watchdog and it will help you immediately identify the cause of the error - hardware or software. For several months now I have been using RPI4 around the clock and I see “deadlocks” (with the inability to restart the computer) about two to three times a week. I believe that this is a normal r...
by renice123
Tue Dec 03, 2019 7:13 am
Forum: Troubleshooting
Topic: Pi 4, Display - No Input, hdmi_safe=1, irregular green blinks
Replies: 4
Views: 344

Re: Pi 4, Display - No Input, hdmi_safe=1, irregular green blinks

If the green LED is blinking (randomly), then this is very good. This means that your Raspberry is working and loading the operating system. But since you changed the display settings in config.txt, then Raspberry can not configure hdmi. The fourth version works differently than the third version of...
by renice123
Mon Dec 02, 2019 7:33 pm
Forum: Troubleshooting
Topic: analog Sound Raspberry PI 4 is mono, not stereo
Replies: 53
Views: 5692

Re: analog Sound Raspberry PI 4 is mono, not stereo

If you need to "amplify" the sound without distortion, then there are many solutions. Frankly, the other day I pulled off pulseaudio (the program "hissed" and this was the last straw) and installed an excellent patch! It's great! It immediately worked in Rasbian without any crutches, I didn’t need t...
by renice123
Mon Dec 02, 2019 7:56 am
Forum: Troubleshooting
Topic: Pi4 - 4GB (rev. 1.1) Freezes [Attempted troubleshooting]
Replies: 20
Views: 3794

Re: Pi4 - 4GB (rev. 1.1) Freezes [Attempted troubleshooting]

It is better to use a 16 GB memory card - you can install full Raspbian on it using the dd utility. I noticed that almost all errors can be divided into several categories. 1. Errors when writing to the OS memory card. But it’s easier to write with the dd command and this will give a stable result! ...
by renice123
Sun Dec 01, 2019 6:00 pm
Forum: Troubleshooting
Topic: Pi4 - 4GB (rev. 1.1) Freezes [Attempted troubleshooting]
Replies: 20
Views: 3794

Re: Pi4 - 4GB (rev. 1.1) Freezes [Attempted troubleshooting]

I would start looking for a malfunction with a simple step - I refused a memory card larger than 16 GB.
Try putting Raspbian on a small memory card and see if there are any positive results. Also, I would not update the system on an unstable computer.
by renice123
Sun Dec 01, 2019 5:42 pm
Forum: Graphics, sound and multimedia
Topic: Eliminating pops/crackles in USB audio with JACK and SooperLooper
Replies: 2
Views: 423

Re: Eliminating pops/crackles in USB audio with JACK and SooperLooper

My jack was noisy when I changed the processor power settings. This surprised me, because a drop in processor speed from 1400 MHz to 1200 MHz should not have such an effect. I sin that I used pulseaudio to communicate with jack. I gave up pulseaudio because I could not overcome the quiet unpleasant ...

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