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by incognitum
Wed Sep 18, 2019 9:12 am
Forum: Raspbian
Topic: Dual Login Mode for RPi4!
Replies: 4
Views: 236

Re: Dual Login Mode for RPi4!

See instructions at the Multi-Seat use of RPi 4 thread.
by incognitum
Sat Sep 14, 2019 10:59 am
Forum: Raspbian
Topic: change client piserver language
Replies: 1
Views: 151

Re: change client piserver language

Everything you enter in the Piserver console is already executed as the root user.
Meaning you do not have to prepend “sudo” before commands, but can just run e.g. “apt update”

Try changing the locale settings with “raspi-config”
by incognitum
Sat Aug 31, 2019 5:49 pm
Forum: Beginners
Topic: does the bluetooth chip on PI3 constasntly emits radiation?
Replies: 9
Views: 402

Re: does the bluetooth chip on PI3 constasntly emits radiation?

Consider the other user case... Joe Random user fires up his shiny new Pi and Bluetooth or WiFi does not work as it is not turned on, and then gets very frustrated/upset/angry because it is "broken". Joe Random cannot do anything useful with his Bluetooth until he pairs a device with it. Pairing is...
by incognitum
Sat Aug 31, 2019 1:59 pm
Forum: Beginners
Topic: does the bluetooth chip on PI3 constasntly emits radiation?
Replies: 9
Views: 402

Re: does the bluetooth chip on PI3 constasntly emits radiation?

Perhaps it could be considered to change Raspbian so Bluetooth is disabled by default, and only enabled if somebody actually indicated he wants to use Bluetooth using the bluetooth panel app thingy? Besides that some folks are -rightly or wrongly- uncomfortable about a potential radiation risk, I di...
by incognitum
Wed Aug 28, 2019 1:27 pm
Forum: Networking and servers
Topic: PiServer working with Synology NAS
Replies: 1
Views: 258

Re: PiServer working with Synology NAS

That's one way to do it. Another option would be to let Piserver clients access the shared folder with the lesson materials on your Synology NAS over NFS. 1) go to the Synology webinterface (DSM) -> "Control panel" -> "shared folders" -> "edit" the existing shared folder you want to make available o...
by incognitum
Tue Aug 27, 2019 7:50 pm
Forum: Networking and servers
Topic: PiServer and client resolution
Replies: 1
Views: 198

Re: PiServer and client resolution

1) In the Piserver GUI, go to tab "software", select the installed operating system (Raspbian), press "shell"

2) On the shell enter

Code: Select all

leafpad /boot/config.txt
3) Add a "disable_overscan=1" line to config.txt
Save the file.
by incognitum
Wed Aug 21, 2019 10:42 am
Forum: Raspberry Pi Desktop for PC and Mac
Topic: Running PiServer with Pi 4s and Raspbian Buster
Replies: 2
Views: 1751

Re: Running PiServer with Pi 4s and Raspbian Buster

Good to see Piserver is working out for you. Some other things you may want to consider: Disk quotas By default there are no limits on the disk space a user can use. So a single student could exhaust all available space. If you want to prevent that, you will need to enable disk quotas. Be aware that...
by incognitum
Mon Aug 19, 2019 11:21 am
Forum: General discussion
Topic: Independent Sound HDMI0 and HDMI1
Replies: 24
Views: 1785

Re: Independent Sound HDMI0 and HDMI1

Do a bit of Googling yourself then. This is now standard Linux DRM/KMS stuff. The problem is that standard Linux DRM/KMS is too x86 centered. People in the x86 world generally do not see this as such a big problem, as it can be simply solved by spending 20 bucks on a basic extra pci-e video card to...
by incognitum
Mon Aug 19, 2019 10:31 am
Forum: General discussion
Topic: Multi-Seat use of RPi 4
Replies: 44
Views: 3694

Re: Multi-Seat use of RPi 4

I will fiddle a bit, but it seems like better to wait for the two device full driver. Actually, I do not know if the full driver do will expose 2 DRI devices by default. But at least I can give a try in patching that up if necessary. Will not try that with fkms. Not worth the effort for a stopgap s...
by incognitum
Mon Aug 19, 2019 8:22 am
Forum: General discussion
Topic: Multi-Seat use of RPi 4
Replies: 44
Views: 3694

Re: Multi-Seat use of RPi 4

Can you point me in the right direction of setting up rules for a single device, but two x servers? I am afraid that is not a matter of setting up udev rules... That would be the case if the fkms driver exposed 2 separate DRI devices, which it does not. There do exists methods to start a second X s...
by incognitum
Sun Aug 18, 2019 9:30 pm
Forum: General discussion
Topic: Multi-Seat use of RPi 4
Replies: 44
Views: 3694

Re: Multi-Seat use of RPi 4

In regards to the dual sound setup... I added this to /etc/udev/rules.d/99-seat.rules TAG=="seat", ATTR{id}=="CSPEAKER", ENV{ID_SEAT}="seat1" TAG=="seat", ATTRS{manufacturer}=="C-Media Electronics Inc. ", ENV{ID_SEAT}="seat1" TAG=="seat", ATTRS{product}=="USB PnP Sound Device", ENV{ID_SEAT}="seat1"...
by incognitum
Sat Aug 17, 2019 3:28 pm
Forum: Networking and servers
Topic: PiServer ram requirements
Replies: 3
Views: 1110

Re: PiServer ram requirements

Piserver = thick client Applications run on the client. Server only provides storage and central authentication. Anything 512+ MB should do. However a little bit more is better because Linux can use spare RAM for file caching. == For serving 5 to 10 Pi computers, maybe a server with 1GB Ethernet, 4G...
by incognitum
Thu Aug 15, 2019 8:57 am
Forum: Troubleshooting
Topic: Creating Network of Raspberry Pi 3s using PiServer
Replies: 3
Views: 187

Re: Creating Network of Raspberry Pi 3s using PiServer

It seems that the traditional netbooting method might be more useful for my purpose. (followed the method here: https://www.raspberrypi.org/documentation/hardware/raspberrypi/bootmodes/net_tutorial.md) This could be more optimal since the server just supports the netbooting process and nothing beyo...
by incognitum
Wed Aug 07, 2019 12:00 pm
Forum: Advanced users
Topic: g_printer module
Replies: 6
Views: 1101

Re: g_printer module

Keep in mind that there is no such thing as an "ordinary USB printer" The way to send printer data over USB is standardized, but what exact format the data is in (e.g. Postscript, PCL) and what the other capabilities of the printer are (paper size, printable area, etc.) is not, and typically require...
by incognitum
Tue Aug 06, 2019 1:18 pm
Forum: Networking and servers
Topic: SOLVED PiServer in a School not finding 25 * RP3B+
Replies: 14
Views: 1029

Re: SOLVED PiServer in a School not finding 25 * RP3B+

I am having the same conversation with Synology about making their NAS drives more school setup friendly for student's/staff to use in a BYOD environment. Are Synology NAS devices popular in schools? Technically, it is also possible to run Debian/piserver on those... (Provided it is one of the more...
by incognitum
Fri Aug 02, 2019 4:55 pm
Forum: Troubleshooting
Topic: RPI2 w/ Berryboot ::: USB and Network not working
Replies: 2
Views: 143

Re: RPI2 w/ Berryboot ::: USB and Network not working

- after rainbow color screen, first line on the monitor is bcm_2835_vchiq 3f00b840.mailbox: Missing firmware node Did you run anything that can install different device-tree files (e.g. rpi-update), that may not match the kernel version Berryboot is running? Try extracting the berryboot .zip again ...
by incognitum
Fri Aug 02, 2019 4:32 pm
Forum: Networking and servers
Topic: SOLVED PiServer in a School not finding 25 * RP3B+
Replies: 14
Views: 1029

Re: SOLVED PiServer in a School not finding 25 * RP3B+

If a teacher doesn't have a clue about English, should that teacher teach English? OTOH setting up Piserver is not something the average teacher is expected to teach... Apart from the Cisco switch problem (don't have any quick solution for that). Is there anything else in the Piserver setup procedu...
by incognitum
Wed Jul 31, 2019 5:04 pm
Forum: General discussion
Topic: Raspberry PI Network imaging Server
Replies: 3
Views: 215

Re: Raspberry PI Network imaging Server

Keep in mind that if there is already a SD card in the Pi it will no longer boot from the network.
So may not work the way you want it to.
by incognitum
Tue Jul 30, 2019 11:42 pm
Forum: Advanced users
Topic: berryboot question
Replies: 4
Views: 211

Re: berryboot question

It shouldn't matter whether you use an installer system (NOOBS or Berryboot) or just directly install the OS image. Once the Pi has booted, it's all up to the OS. Not exactly. Berryboot is not purely an installer system. It also tells Linux distributions to share a single partition with each other....
by incognitum
Tue Jul 30, 2019 11:30 pm
Forum: Advanced users
Topic: berryboot question
Replies: 4
Views: 211

Re: berryboot question

is the space shared between them? Yes. will a "raspbian OS installed with berryboot" perform equal (in terms of speed, RAM used, etc) when compared with same raspbian but installed to SD card directly ? Similar. WIth Berryboot compression is used on the operating system files, which may or may not ...
by incognitum
Mon Jul 29, 2019 12:12 pm
Forum: General discussion
Topic: Multi-Seat use of RPi 4
Replies: 44
Views: 3694

Re: Multi-Seat use of RPi 4

What is your experience with 3D acceleration? Suggest you wait with experimenting with that until there is a full KMS driver instead of the current FKMS stopgap. Current FKMS only exposes a single /dev/dri device instead of one for each screen. While not impossible, it is a pain to share a single d...
by incognitum
Sat Jul 27, 2019 10:00 am
Forum: General discussion
Topic: Multi-Seat use of RPi 4
Replies: 44
Views: 3694

Re: Multi-Seat use of RPi 4

Two questions: How do I change the resolution on each screen? It doesn't seem exposed and the image seems letterboxed. It's like my resolution is set to something under 1920x1080 to some thing like 1680. Can set the resolution of one of the screens through config.txt But not sure about the other on...
by incognitum
Fri Jul 26, 2019 8:15 pm
Forum: Troubleshooting
Topic: Network Boot issue
Replies: 8
Views: 202

Re: Network Boot issue

Make sure your NFS server is functioning properly...
And you have the right options in cmdline.txt, so that it gets the files of your Linux distribution from there (along the lines of: ip=dhcp root=/dev/nfs rw nfsroot=1.2.3.4:/full-path-to-folder-exported-by-nfs)
by incognitum
Fri Jul 26, 2019 6:44 pm
Forum: Troubleshooting
Topic: Network Boot issue
Replies: 8
Views: 202

Re: Network Boot issue

Have a photo of that error?

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