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by PandaLion98
Thu Jan 28, 2021 9:59 am
Forum: OpenGLES
Topic: Help request - getting Qt xcb_egl to work on Pi 4
Replies: 6
Views: 1034

Re: Help request - getting Qt xcb_egl to work on Pi 4

Oh, gotcha, I see. I guess setting up a build environment would indeed allow me to customize anything, including GLES. I did read the prebuilt PyQt5 doesn't cooperate well with Pi's OpenGL.

Thanks for the info, really appreciate it.
by PandaLion98
Thu Jan 28, 2021 4:47 am
Forum: Camera board
Topic: Is there a way to get PiCamera's actual framerate?
Replies: 2
Views: 198

Is there a way to get PiCamera's actual framerate?

I'm using PiCamera 1.13 with Python 3.7.3. I would like to know the camera's actual frame rate, but I could not find an obvious solution. My current approach is with picamera.PiCamera(resolution='416x416', framerate=60) as camera: time.sleep(2) camera.start_preview() while True: fps = camera.framera...
by PandaLion98
Thu Jan 28, 2021 3:37 am
Forum: OpenGLES
Topic: Help request - getting Qt xcb_egl to work on Pi 4
Replies: 6
Views: 1034

Re: Help request - getting Qt xcb_egl to work on Pi 4

The Bad Match message I see is actually OK for the application I am using because it first tries to use OpenGL 4.1 and then falls back to using GLES. The real problem(s) that stopped GLES from working were elsewhere. Are you using PyQt or just Qt? Are you building them yourself or using prebuilt pa...
by PandaLion98
Tue Jan 26, 2021 3:37 am
Forum: OpenGLES
Topic: Help request - getting Qt xcb_egl to work on Pi 4
Replies: 6
Views: 1034

Re: Help request - getting Qt xcb_egl to work on Pi 4

How did you manage to fix it? I'm facing the same issue and I couldn't find any info anywhere unfortunately.
by PandaLion98
Wed Aug 29, 2018 5:14 pm
Forum: Advanced users
Topic: Why is the L2 cache disabled by default?
Replies: 4
Views: 2091

Re: Why is the L2 cache disabled by default?

Did you bother to read the responses to your question? Peter Green's response is spot on. The Pi2 & 3 have a bigger L2 cache built in to the ARM cluster, therefore there is little point in trashing the VPUs L2 cache with accesses that are already cached. Run your same test on any Pi with a BCM2...
by PandaLion98
Wed Aug 29, 2018 11:58 am
Forum: Advanced users
Topic: Why is the L2 cache disabled by default?
Replies: 4
Views: 2091

Why is the L2 cache disabled by default?

I was reviewing stuff and I came across one of my old questions on RPi Stackexchange . I checked it just now on a fairly recent install of Raspbian Lite, and it's still there (disable_l2cache=1): pi@tomahawk:~ $ vcgencmd get_config int aphy_params_current=819 arm_freq=900 audio_pwm_mode=514 config_h...
by PandaLion98
Sun Aug 26, 2018 3:25 am
Forum: Troubleshooting
Topic: Pi 3B - Everything is dead except for the SOC
Replies: 1
Views: 265

Re: Pi 3B - Everything is dead except for the SOC

I was about to resume troubleshooting. I plugged in the Pi. Of course it works now. I kind of expected it to happen. I remember that this has happened to me before, on a Pi 2 B+. I'd like to see discussion on why this happened. Hopefully an RPi engineer can pitch in. Is there a hidden polyfuse somew...
by PandaLion98
Sun Aug 26, 2018 2:47 am
Forum: Troubleshooting
Topic: Pi 3B - Everything is dead except for the SOC
Replies: 1
Views: 265

Pi 3B - Everything is dead except for the SOC

I've read the sticky on boot problems and it didn't help, unfortunately. I've detailed my problem and the steps I took to troubleshoot it over on Stackexchange ( https://raspberrypi.stackexchange.com/q/88484/24224 ). I'll summarize it here. So far, I've tested all probable problem points from public...
by PandaLion98
Sat May 14, 2016 3:43 am
Forum: Advanced users
Topic: Bluetooth-how do I automatically accept incoming connections
Replies: 6
Views: 3213

Re: Bluetooth-how do I automatically accept incoming connect

How do I make the Pi automatically accept incoming Bluetooth connections/pairing requests? That's not how bt works. The bt pairing process is usually more or less manual on most devices and systems... once the pairing is complete (which is usually manual) the connecting can be automatic, but often ...
by PandaLion98
Sat May 14, 2016 3:42 am
Forum: Advanced users
Topic: Bluetooth-how do I automatically accept incoming connections
Replies: 6
Views: 3213

Re: Bluetooth-how do I automatically accept incoming connect

MarkHaysHarris777 wrote:
Douglas6 wrote:After considering the security implications, ...
@Douglas, your first sentence is key.
I don't really mind security. That's the exact point in my experiment. I'm checking to see what people would do with it.
by PandaLion98
Sat May 14, 2016 2:42 am
Forum: Advanced users
Topic: Bluetooth-how do I automatically accept incoming connections
Replies: 6
Views: 3213

Bluetooth-how do I automatically accept incoming connections

I'm setting up a system where any user can connect and just send their files to the Pi. Users may also want to pair with it.

How do I make the Pi automatically accept incoming Bluetooth connections/pairing requests?
by PandaLion98
Sun Mar 20, 2016 6:48 am
Forum: Troubleshooting
Topic: Pi 3 in shutdown state draws 220mA
Replies: 37
Views: 16911

Re: Pi 3 in shutdown state draws 220mA

Pi with no SD card: 75.5 mA "sudo poweroff" and "sudo shutdown now": 57.1 mA "sudo halt": out of my meter's range, USB current meter reads 230 mA Moment when SD card was inserted without power cycling: 75.9 mA. I think my SD card consumes 4 mA of power. Your first figu...
by PandaLion98
Sat Mar 19, 2016 12:44 pm
Forum: Troubleshooting
Topic: Pi 3 in shutdown state draws 220mA
Replies: 37
Views: 16911

Re: Pi 3 in shutdown state draws 220mA

DougieLawson wrote:
Massi wrote:can't we use a Raspi to manage image attachments on this forum? :lol: :lol:
If you want to host them on a RPi then yes, but it's easier to host the pics on http://imgur.com
Agreed.
by PandaLion98
Sat Mar 19, 2016 12:37 pm
Forum: Troubleshooting
Topic: Pi 3 in shutdown state draws 220mA
Replies: 37
Views: 16911

Re: Pi 3 in shutdown state draws 220mA

Idle: 310mA CPU loaded: 455mA usb buspower off: 200mA sudo bash -c "echo 0 > /sys/devices/platform/soc/3f980000.usb/buspower ; sleep 10 ; echo 1 > /sys/devices/platform/soc/3f980000.usb/buspower" sudo shutdown: 80mA sudo poweroff: 80mA sudo halt: 381mA :shock: Something's up with that hal...
by PandaLion98
Fri Mar 18, 2016 3:01 pm
Forum: For sale
Topic: WD 314GB Drive
Replies: 8
Views: 4798

Re: WD 314GB Drive

How much?
by PandaLion98
Fri Mar 18, 2016 12:11 pm
Forum: Advanced users
Topic: Pi power consumption while powered off
Replies: 3
Views: 1769

Re: Pi power consumption while powered off

Thought I recognised that username, your name has already come up in a thread about power consumption ;) See here: https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=140088& Okay, so I did some tests and posted a reply on the mentioned thread: https://www.raspberrypi.org/forums/viewtop...
by PandaLion98
Fri Mar 18, 2016 12:06 pm
Forum: Troubleshooting
Topic: Pi 3 in shutdown state draws 220mA
Replies: 37
Views: 16911

Re: Pi 3 in shutdown state draws 220mA

I'm not sure if this is still applicable to the Pi 3, but I've done some tests with my B+ (my Pi 2 is busy server-ing). Test conditions/parts used: Proven/known good-quality Samsung power brick calibrated USB ammeter vanilla Raspbian Left running for 2 minutes after action/command is executed to mak...
by PandaLion98
Fri Mar 18, 2016 11:41 am
Forum: Advanced users
Topic: Pi power consumption while powered off
Replies: 3
Views: 1769

Re: Pi power consumption while powered off

chrisoh wrote:Thought I recognised that username, your name has already come up in a thread about power consumption ;)
See here: viewtopic.php?f=28&t=140088&
Ahh, yes. I'll do some more measurements then update it if necessary. Thanks for pointing out that thread.
by PandaLion98
Fri Mar 18, 2016 10:31 am
Forum: Advanced users
Topic: Pi power consumption while powered off
Replies: 3
Views: 1769

Pi power consumption while powered off

How much power does the Pi consume while powered off? (sudo halt/shutdown and just plugged in without an SD card)
by PandaLion98
Sat Nov 21, 2015 9:56 am
Forum: Networking and servers
Topic: smsc95xx 1-1.1:1.0 eth0: kevent 0 may have been dropped
Replies: 4
Views: 1359

Re: smsc95xx 1-1.1:1.0 eth0: kevent 0 may have been dropped

The RPi has never responded to a broadcast ping or an oversized regular ping, there's also rate limiting activated in the kernel. So you'll have to look at a different way of trying to DDoS it. On my network the only machine that's stupid enough to respond to a broadcast ping (ping -b xx.xx.xx.255)...
by PandaLion98
Fri Nov 20, 2015 10:30 am
Forum: Networking and servers
Topic: smsc95xx 1-1.1:1.0 eth0: kevent 0 may have been dropped
Replies: 4
Views: 1359

Re: smsc95xx 1-1.1:1.0 eth0: kevent 0 may have been dropped

How are you doing your DDoS? Have you disabled kernel SYN cookies? sysctl -n net.ipv4.tcp_syncookies This is running on both laptops: A few hundred shells running "ping 192.168.1.254 -l 65000 -t", Low orbit ion cannon, and this thing: https://www.paessler.com/tools/webstress . Network mon...
by PandaLion98
Thu Nov 19, 2015 11:26 pm
Forum: Networking and servers
Topic: smsc95xx 1-1.1:1.0 eth0: kevent 0 may have been dropped
Replies: 4
Views: 1359

smsc95xx 1-1.1:1.0 eth0: kevent 0 may have been dropped

I DDoS'ed my pi as part of a stress test using 2 laptops, fully saturating the 150 Mbps LAN interface on it. Less than an hour later, I found out that the pi doesn't respond to the ping flood and TCP flood anymore. I double checked and saw that the interface doesn't work until I restarted the networ...
by PandaLion98
Mon Dec 22, 2014 4:18 pm
Forum: Networking and servers
Topic: How to make a pi connect to wifi then share net via eth0
Replies: 0
Views: 673

How to make a pi connect to wifi then share net via eth0

Hey! This is my first post. I just got a RasPi B+ and I'm looking to replace the Windows PC that's doing the routing job. What I'm trying to do with the Pi is making it connect to a wifi network using it's bssid(or mac address), then share it with another wifi router to distribute the connection. An...

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