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by XueHai8
Fri Sep 06, 2019 1:48 pm
Forum: Troubleshooting
Topic: RPI4B doesn't see 5Ghz 802.11n or ac network
Replies: 8
Views: 234

Re: RPI4B doesn't see 5Ghz 802.11n or ac network

https://notenoughtech.com/raspberry-pi/2019-raspberry-pi-network-speed-test/ "The latest and greatest! The board comes with a 1Gbit adapter and it’s capable of serving 2.4 GHz and 5 GHz 802.11b/g/n/ac wireless LAN networks. The WiFi shares the bus with USB 2.0 so I’m expecting some serious bottlenec...
by XueHai8
Fri Sep 06, 2019 1:30 pm
Forum: Troubleshooting
Topic: RPI4B doesn't see 5Ghz 802.11n or ac network
Replies: 8
Views: 234

Re: RPI4B doesn't see 5Ghz 802.11n or ac network

Maybe there is a bug in their Wifi regional band settings? These are allow in China, but only those in the 100+ channel ranges show up on the 4B when set to China region. However, when set to US, those in the 30-50 ranges do show up. Capture.PNG I have the channel width set to 'Auto' on my router, b...
by XueHai8
Fri Sep 06, 2019 11:30 am
Forum: Troubleshooting
Topic: RPI4B doesn't see 5Ghz 802.11n or ac network
Replies: 8
Views: 234

Re: RPI4B doesn't see 5Ghz 802.11n or ac network

Apparently, the Pi4B is not capable of 'seeing' 5Ghz networks in the 30-50 channel ranges :cry:
by XueHai8
Wed Sep 04, 2019 8:40 am
Forum: Troubleshooting
Topic: RPI4B doesn't see 5Ghz 802.11n or ac network
Replies: 8
Views: 234

RPI4B doesn't see 5Ghz 802.11n or ac network

Having strange issue here. I have 4 wifi networks, 2x2Ghz & 2x5Ghz, but the Pi4B is only seeing the 2Ghz One of the 5Ghz, call it Z5, is set for 'mixed' on channel 40 The other 5Ghz, call it L5, is set for 'n' on channel 48 I replaced the old Z5 wifi router with a newer one, but transferred all the ...
by XueHai8
Sun Aug 25, 2019 1:45 am
Forum: Troubleshooting
Topic: No Desktop!
Replies: 0
Views: 77

No Desktop!

RPI4B. New install of Raspbian Buster FULL. updated with apt-get update / apt-get upgrade. Installed xscreensaver. Display went black after the set period of time. Moved mouse to wake up. No Trash Can. No Desktop Icons. No Menu Bar. Just the background. Right-mouse click brought up menu to exit Open...
by XueHai8
Sat Aug 24, 2019 6:15 am
Forum: Troubleshooting
Topic: Pi4B - Power light stays on after shutdown
Replies: 3
Views: 161

Pi4B - Power light stays on after shutdown

One of the niceties of the Pi Zero is that when you shut it down, sudo shutdown -h now , it turns all the lights off when its powered down completely: the Red Power light goes out as well. So you KNOW that its really off. No other Pi models do that, including the new Pi4B. Just wish it did. Maybe it...
by XueHai8
Fri Aug 23, 2019 3:03 am
Forum: General discussion
Topic: PINN - How to create multiple partitions on USB Drive?
Replies: 2
Views: 131

PINN - How to create multiple partitions on USB Drive?

I have a Pi4B and ran Raspbian on it to create multiple partitions on my USB Drive so that I could install and test different OSs. I then installed PINN on an SD Card and booted it. But PINN only see's the entire USB Drive, not the individual partitions. How do I create multiple partitions on the US...
by XueHai8
Fri Aug 23, 2019 2:33 am
Forum: General discussion
Topic: STICKY: PINN - An enhanced version of NOOBS.
Replies: 841
Views: 266038

Re: STICKY: PINN - An enhanced version of NOOBS.

I can't get PINN to connect to my Wifi network. Latest version of Raspbian Buster connects fine. PINN doesn't see my 5Ghz network, only the 2Ghz one. I select my Network name, enter its password, verify with 'Show Password', and click on connect. The connecting progress bar just bounces back and for...
by XueHai8
Thu Aug 22, 2019 8:11 am
Forum: Advanced users
Topic: Pi 4B Multiboot?
Replies: 3
Views: 333

Re: Pi 4B Multiboot?

Thanks!
PINN looks promising!
Thanks again!
by XueHai8
Thu Aug 22, 2019 4:33 am
Forum: Advanced users
Topic: Pi 4B Multiboot?
Replies: 3
Views: 333

Pi 4B Multiboot?

Got a Pi4B and a 320GB SATA/USB3.0 HD.
Looking to install multiple OSs on the HD and be able to boot into whichever one I wish at Power On.
BerryBoot looks very nice, but its not yet ready for the 4B.
Anyone know of other solutions that work with the 4B?
Thanks!
by XueHai8
Wed Aug 21, 2019 7:23 am
Forum: General discussion
Topic: FYI: raspi-config not used in GUI
Replies: 1
Views: 212

FYI: raspi-config not used in GUI

I set my RPI4 up via SSH and raspi-config: New Pi Password, Wifi connection, Localizations, etc.
When I booted into the GUI for the first time, it asked for all that info again.
Just an FYI as I don't think that should have happened.
Cheers.
by XueHai8
Wed Aug 21, 2019 7:19 am
Forum: Troubleshooting
Topic: Pi4B No Display - Micro HDMI to DVI Monitor
Replies: 1
Views: 136

Re: Pi4B No Display - Micro HDMI to DVI Monitor

RESOLVED: Crappy Mico HDMI to HDMI Adapter. Bought a new one and it works fine now.
Cheers
by XueHai8
Wed Aug 21, 2019 4:09 am
Forum: Troubleshooting
Topic: Pi4B No Display - Micro HDMI to DVI Monitor
Replies: 1
Views: 136

Pi4B No Display - Micro HDMI to DVI Monitor

Raspberry Pi 4B Latest Buster download 2019-07-10 Micro HDMI to HDMI Adapter -> HDMI to DVI Cable -> DVI Monitor HDMI to DVI Cable and Monitor works. Had it connected to my laptop for a while now as a second monitor with no issues. No way to test Micro HDMI to HDMI Adapter - no other devices with Mi...
by XueHai8
Sat Jul 13, 2019 9:14 am
Forum: Troubleshooting
Topic: Buster: No python miniupnpc library
Replies: 1
Views: 106

Re: Buster: No python miniupnpc library

Never mind. Found the answer: Use PIP instead:

Code: Select all

apt-get install python-pip
pip install miniupnpc
:D
by XueHai8
Sat Jul 13, 2019 8:41 am
Forum: Troubleshooting
Topic: Buster: No python miniupnpc library
Replies: 1
Views: 106

Buster: No python miniupnpc library

Can't seem to find this package, python-miniupnpc, anymore. Did: apt-cache search miniupnpc libminiupnpc-dev - UPnP IGD client lightweight library development files libminiupnpc17 - UPnP IGD client lightweight library minissdpd - keep memory of all UPnP devices that announced themselves miniupnpc - ...
by XueHai8
Fri Jun 28, 2019 7:17 am
Forum: Advanced users
Topic: Dual USB stack on A3+ ?
Replies: 5
Views: 424

Re: Dual USB stack on A3+ ?

Ok. Thank you for clarifying your answer. I did not understand the first time.
Bummer. Guess I'll dig around for the the smallest USB hub I can find.
Thanks again.
by XueHai8
Fri Jun 28, 2019 2:14 am
Forum: Advanced users
Topic: Dual USB stack on A3+ ?
Replies: 5
Views: 424

Re: Dual USB stack on A3+ ?

Well, like I said already, I don't want to add a USB hub because of cost and space (bulk), so I asked if just replacing the single USB connector with a dual one would work.
So hopefully someone else can answer my question.
by XueHai8
Fri Jun 28, 2019 1:05 am
Forum: Advanced users
Topic: Dual USB stack on A3+ ?
Replies: 5
Views: 424

Dual USB stack on A3+ ?

I've seen posts on this regarding the original Model A, but can't find anything about the 3A+. Would it be possible to upgrade the 3A+ to have 2 USB Ports, instead of just the one? And would it be as simple as just de-soldering the USB Port and soldering in a dual stack one? Clearly, I have not elec...
by XueHai8
Wed Jun 26, 2019 9:38 am
Forum: Troubleshooting
Topic: Buster on 3A+ Bluetooth audio problem
Replies: 0
Views: 155

Buster on 3A+ Bluetooth audio problem

Got my bluetooth speakers connected to the Pi 3A+ with Buster and was watching a test video on YouTube. Kinda choppy, but it worked and I could hear sound....then... Sound died. Speaker icon says "No volume control on this device" Then YouTube froze Rebooted, and it happened again. Any ideas? Thanks!
by XueHai8
Wed Jun 26, 2019 9:24 am
Forum: Troubleshooting
Topic: Buster on 3A+ Errors
Replies: 3
Views: 377

Re: Buster on 3A+ Errors

Thanks all!

I did the update and full-upgrade and it reported nothing to do.

I'll ignore the cma_alloc errors.

Can't wait for my 4B :D
by XueHai8
Wed Jun 26, 2019 8:46 am
Forum: Troubleshooting
Topic: Buster on 3A+ Errors
Replies: 3
Views: 377

Buster on 3A+ Errors

This is a full/fresh install of Buster Desktop with Recommended Software on a Pi 3A+ First, I get a cma_alloc failed error -12 every time I boot. Doesn't seem to blow anything up. Should I be concerned? Second, the automatic updated failed with something to the tune of 'kernel is not yet available'....
by XueHai8
Fri Dec 14, 2018 2:18 pm
Forum: Troubleshooting
Topic: Bluetoothctl and PulseAudio via Crontab problems
Replies: 0
Views: 99

Bluetoothctl and PulseAudio via Crontab problems

I'm trying to get my Pi connected to my Bluetooth speakers to play music at certain times of the day via cron jobs. The following scripts work if I run them manually in SSH, but when I put them in as cron jobs, it fails. BTConnect.sh #!/bin/bash #/usr/bin/pulseaudio -D --system /usr/bin/sudo service...
by XueHai8
Mon Dec 10, 2018 3:06 am
Forum: Networking and servers
Topic: Multiple Gateways with Failover problem
Replies: 0
Views: 282

Multiple Gateways with Failover problem

I've set up 3 OpenVPN gateway clients on my Pi set as tun0, tun1 and tun2 and they work perfectly interdependently as I am able to ping out those interfaces successfully: ping -I tun0 8.8.8.8 ping -I tun1 8.8.8.8 ping -I tun2 8.8.8.8 I am wanting to use this in a failover environment such that tun0 ...
by XueHai8
Thu Oct 18, 2018 1:28 am
Forum: Networking and servers
Topic: OpenVPN client always uses tun1, never tun0?
Replies: 0
Views: 488

OpenVPN client always uses tun1, never tun0?

Ok, back with another OpenVPN client question using multiple simultaneous hosts. I have two client config files in /etc/openvpn One goes to HostA, the other goes to HostB and I see both tun0 and tun1 in ifconfig with inet addr as expected: 10.9.0.6 (tun0) and 10.8.0.6 (tun1) Independently tested, bo...
by XueHai8
Wed Oct 17, 2018 10:07 am
Forum: Networking and servers
Topic: OpenVPN Client on tun1 fails, tun0 works
Replies: 1
Views: 391

Re: OpenVPN Client on tun1 fails, tun0 works

I think I found my answer. I needed a new entry for tun1 in /etc/iptables.up.rules
Now it seems to be working ok.

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