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by renice123
Thu Dec 05, 2019 8:25 am
Forum: Troubleshooting
Topic: (another) Wifi issue
Replies: 11
Views: 963

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: 364

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: 739

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: 774

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: 963

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: 963

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: 4791

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: 364

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: 54
Views: 6746

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: 4791

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: 4791

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: 468

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 ...
by renice123
Sun Dec 01, 2019 5:27 pm
Forum: Graphics, sound and multimedia
Topic: Random audio player
Replies: 1
Views: 271

Re: Random audio player

You can achieve this in several ways. 1. MPD and a console player to it. As a rule, console players can play files from a folder randomly. 2. Write a script in any simple language, even in bash, which will run a random file at random intervals =) VLC or moc are not needed to play the sound. It’s eas...
by renice123
Sun Dec 01, 2019 5:11 pm
Forum: General discussion
Topic: Best audio solution for Pi 4 desktop config
Replies: 19
Views: 7409

Re: Best audio solution for Pi 4 desktop config

I think it all comes down to the convenience of connecting the DAC and amplifier, speakers to the microcomputer. For a while I experimented with sound and Raspberries, I came to the conclusion that you must have at least two Raspberries in order to get a normal sound cabinet. This is due to the huge...
by renice123
Sat Nov 30, 2019 12:25 pm
Forum: Troubleshooting
Topic: analog Sound Raspberry PI 4 is mono, not stereo
Replies: 54
Views: 6746

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

It seems I'm starting to understand what the problem is. Yes, I had the same software “bug”, but I completely forgot about it, because I do not use the internal DAC (I almost always listen to music and watch movies on the external DAC) As far as I remember, this was the problem of the “ native ” Vol...
by renice123
Sat Nov 30, 2019 7:17 am
Forum: Troubleshooting
Topic: analog Sound Raspberry PI 4 is mono, not stereo
Replies: 54
Views: 6746

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

Sound in films is the misfortune of the modern film industry. After the sound engineers decided to sound the films “in a new way”, that is, they expanded the dynamic range, introduced quad and stereo sound, we started cacophony. I also can’t listen to sound in films - with the overall high sound qua...
by renice123
Fri Nov 29, 2019 1:29 pm
Forum: Troubleshooting
Topic: analog Sound Raspberry PI 4 is mono, not stereo
Replies: 54
Views: 6746

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

I still think the problem with pulseaudio in Rasbian seems far-fetched I do not like pulseaudio and scold the program because this program does not suit me, but I use pulseaudio always on Raspberry. Apart from fixing one configuration file, I did nothing. Often, pulseaudio works for me with the JACK...
by renice123
Fri Nov 29, 2019 7:38 am
Forum: Troubleshooting
Topic: analog Sound Raspberry PI 4 is mono, not stereo
Replies: 54
Views: 6746

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

Unfortunately, the pulseaudio problem is not only a Raspbian problem. Pulseaudio also works poorly on x86 computers on other distributions. And you can easily find a description of the numerous "bugs" on request in Google As an example https://wiki.parabola.nu/PulseAudio/Troubleshooting I first read...
by renice123
Fri Nov 29, 2019 7:26 am
Forum: Troubleshooting
Topic: Serial port won't open after using minicom
Replies: 4
Views: 383

Re: Serial port won't open after using minicom

Many years ago, in the era of Internet communications over the phone, Minicom was my favorite program. But even then I noticed the “freezing”. Alas, many years have passed since then and communication using the serial port has not improved =) Recently, I again tried to use minicom to organize data t...
by renice123
Wed Nov 27, 2019 12:03 pm
Forum: Troubleshooting
Topic: Pi 4 starts to boot but stops at splash screen.
Replies: 7
Views: 1132

Re: Pi 4 starts to boot but stops at splash screen.

Children often break things =) Students are also children. Before throwing raspberries, try the following. Disconnect all external devices - keyboard, mouse, even hdmi monitor. Try wiping the contacts of the memory card (inside and on the memory card) with isopropyl alcohol (carefully) Insert a diff...
by renice123
Wed Nov 27, 2019 11:26 am
Forum: Troubleshooting
Topic: analog Sound Raspberry PI 4 is mono, not stereo
Replies: 54
Views: 6746

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

There is no hardware problem with Raspberry sound. Sound output (DAC, amplifier) ​​is working properly. There is a stereo signal. But as soon as you do sudo apt-get install pulseaudio, problems with stereo sound will begin, as well as possibly with an external sound card. This is a problem with a po...
by renice123
Wed Nov 27, 2019 7:46 am
Forum: Troubleshooting
Topic: Pi4: Chromium Browser Causes frequent hangs (5 seconds or so duration)
Replies: 16
Views: 2936

Re: Pi4: Chromium Browser Causes frequent hangs (5 seconds or so duration)

Sorry, I don't speak English well. Yes, I'm talking about creating a disk in RAM. As far as I know (I'm an old Linux user), Chromium contains critical errors by inheritance. Firefox also borrows many errors: these browsers have a lot in common. There are, for example, browsers such as Luakit, which ...
by renice123
Wed Nov 27, 2019 6:54 am
Forum: Troubleshooting
Topic: analog Sound Raspberry PI 4 is mono, not stereo
Replies: 54
Views: 6746

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

Raspberry is a great microcomputer for experimenting with sounds. But pulseaudio is not the best solution for sound, although this is just my opinion and that of some of my friends. The Pulseaudio program, unfortunately, is written with many software errors, and the “mono” error is only one of the k...
by renice123
Tue Nov 26, 2019 6:52 pm
Forum: Troubleshooting
Topic: analog Sound Raspberry PI 4 is mono, not stereo
Replies: 54
Views: 6746

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

Yes, this is a pulseaudio problem. She is already many years old and has not yet been solved (oh! Do you know who wrote the code for pulseaudio?) I also encountered this problem on my Raspberry, but “fixed” it in another way. Did the following. Opened file /usr/share/pulseaudio/alsa-mixer/profile-se...
by renice123
Tue Nov 26, 2019 1:55 pm
Forum: Troubleshooting
Topic: 1GB and 2GB units run cooler than 4GB unit?
Replies: 5
Views: 589

Re: 1GB and 2GB units run cooler than 4GB unit?

I have been using Raspberries with 4 Gb of memory with passive cooling for a long time and do not experience any problems. The maximum temperature that I saw is 55 degrees (watching a video for several hours in a row in a browser). If I use Kodi or VLC, the temperature of the processor is less than ...

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