Raspberry Pi Forums

lintweaker

Why are you trying to use something that's been deprecated for ten years or more? Use iptables, it's more sane, has better granularity and is therefore more secure. If iptables scares the hell out of you then look at something like ufw (user-friendly firewall) to help build your iptables rules. I w...

lintweaker

Using Raspian with Debian Jessie I have setup a basic /etc/hosts.deny and /etc/hosts.allow. Somehow it does not seem to work, from a host which should not be able to connect I can still connect. Contents of /etc/hosts.deny: ALL: ALL Contents of /etc/hosts.allow: ALL: localhost 127.0.0.1 ALL: [::1] O...

lintweaker

To enable touch, you'll need to make a modification to the Kivy configuration file: pi@raspberrypi ~/kivy $ nano ~/.kivy/config.ini 14.Go into the [input] section, remove the lines that are in there and put in: mouse = mouse mtdev_%(name)s = probesysfs,provider=mtdev hid_%(name)s = probesysfs,provi...

lintweaker

On the Pi blog there were some nice Kivy touch examples using the new official Pi touch screen.
I have managed to get Kivy going, but touch does not work yet.

Are the examples shown on the blog posted somewhere?

lintweaker

Adding dwc_otg.speed=1 to /boot/cmdline.txt, as explained in one of the threads linked to in the inital message, finally pretty much resolved this issue for me. I haven't had time to fully experiment and I've noticed some occasional cracks but nothing like before and 24 bit flac is definitely liste...

lintweaker

I just got my 512MB Pi and updated /boot with the latest firmware files from git (manual download).
X works great, I have set

Code: Select all

gpu_mem_512=16

in /boot/config.txt.
System is very responsive.

lintweaker

It certainly sounds as if the Pi is flooding the network with traffic. I find it mildly astounding though that it can flood a gigabit switch when connecting at 100M. It may be instructive to put the 10M hub back in and connect another port of it to a PC running Wireshark . Unfortunately a switch wo...

lintweaker

Did some further experimenting/testing. - Setting the Pi to 10MBit full duplex does not resolve the problem. - Adding an old 10Mbit network HUB between the Pi and gigabit switch resolves the problem but of course forces the Pi to 10Mbit half duplex. - Adding an additional gigabit switch between the ...

lintweaker

Maybe you can check if you still have a persistent-net rule in /etc/udev/rules.d? If so, just remove it for both Pi's.

lintweaker

what is the power as measured from tp1 / tp2 - do you get a lot of errors in the logs ? are you using the latest version [sudo apt-get update && sudo apt-get upgrade -y ] if you are underpowered then you may be getting a load of failed tcp-ip connections casing the switch to be overloaded w...

lintweaker

It seems that the Pi causes network disruption. As soon as I let MPD on the Pi scan music files via a NFS share my other machines connected to the same switch can no longer access the Internet. My Wifi router is also connected to the same switch and wifi devices also have network problems when the P...

lintweaker

Are these options still valid? sdhci-bcm2708.enable_llm=1 sdhci-bcm2708.sync_after_dma=0 sdhci-bcm2708.enable_llm=1 is there by default, so is superfluous. sdhci-bcm2708.sync_after_dma=0 is not a default, as it's not compatible with all sdcards. It may be worth enabling if it causes no problems. Th...

lintweaker

The latest raspbian image did improve things again although it seems hotpluging my USB2 audio device does not work. It's only detected at boot. Are these options still valid? sdhci-bcm2708.enable_llm=1 sdhci-bcm2708.sync_after_dma=0 Playing DSD files over USB now works much better but sound still ke...

lintweaker

The latest firmware+kernel and using sdhci-bcm2708.enable_llm=1 did improve audio playback using usb-audio :) . It's not flawless, there are still occasional dropouts/crackles which increase with the bitrate being played back. So very close now! Keep it up! BTW is there a complete list of all the sd...

lintweaker

@Narf03:

Playing a 320k MP3 file is not a problem. The Pi can even handle 192000bps FLACs without problem. The sound cutting out is due to USB and/or SD card drivers issues.

lintweaker

The raspberry pi does not have any problems decoding FLAC files, even highres ones. You could however experience some crackles when using MPD with a USB audio device. With the latest kernel (#278) this is greatly improved but the pi kernel/firmware needs a bit more work to get all the kinks out.

lintweaker

We updated the synopsys driver to a newer version (2.94) last night. Thanks to ddv2005 for tracking down a bug that had been breaking the newer version of the driver. Whilst no specific bug we are aware of is fixed by this update (sorry, lost packets and limited number of periodic endpoints are sti...

lintweaker

I have 3 different powered hubs (I was surprised I even had that many :) ) but unfortunately they all have problems. It is possible that a powered HUB delivers power back to the Pi. What is the consensus on that being part of the issue or even being the issue? I have not managed to get a cable to co...

lintweaker

If I set both of the parameters I get I/O errors. However, setting just sdhci-bcm2708.missing_status=0 doesn't appear to produce errors and seems to massively reduce the audio glitches (still get a _very_ occasional one when writing a lot of data), so I'll run with that for now. I still have to use...

lintweaker

Count me in for one! Very nice.

lintweaker

As posted in the troubleshooting->Sound stuttering with playing MP3 thread http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=13184 I have trouble booting with the mentioned sdhci-bcm2708 options. The new kernel/firmware itself (so without the options) shows great improvement when playing so...

lintweaker

OK, as I have audio problems I just tried the 'sdhci-bcm2708.missing_status=0 sdhci-bcm2708.sync_after_dma=0' options. When I boot I get: mmc0: Timeout waiting for hardware interrupt - cmd13. mmc0: Timeout waiting for hardware interrupt - cmd13. This keeps on going for a while but continues to boot ...

lintweaker

Ok, I'm retracting various conjecture about the shielding and isolation of the Pi. Combining knowledge gleaned from posts by Dom on the inbuilt soundcard (regarding sound glitches) I've discovered the audio interference is mostly software related. Thanks to a post here: http://www.raspberrypi.org/p...

lintweaker

@bryankemp I can confirm that stressing the CPU (by executing: time echo "scale=5000; 4*a(1)" | bc -l -q which pegs the cpu for ~ 85%) the sound quality stays constant for normal mp3s. Higher frequency (> 48Hz) files are very much affected, they sound worse then normal (which is not perfe...

lintweaker

I was happily playing music with mpd when, while doing a rpi-update simultaniously, made the pi do a kernel dump. Luckily it recovered and finished the firmware/kernel update.

I have attached the crash dump.

edit: cannot attach .txt files? Silly..

Search found 33 matches

Re: Jessie: hosts.deny/allow does not work? [solved]

Jessie: hosts.deny/allow does not work?

Re: Kivy touch examples?

Kivy touch examples?

Re: USB to Class 2 Audio USB DAC comm issues

Re: 512 MB Pi GUI hangs with new Memory Split

Re: Pi causing network disruption for other devices !?

Re: Pi causing network disruption for other devices !?

Re: Two Pi's, both on network with same IP address!

Re: Pi causing network disruption for other devices !?

Pi causing network disruption for other devices !?

Re: USB - the Elephant in our Room

Re: USB - the Elephant in our Room

Re: USB - the Elephant in our Room

Re: How to get high quality audio from R-Pi?

Re: raspberry mpd and flac

Re: USB - the Elephant in our Room

Re: most reliable USB hub

Re: usb audio glitches when writing to SD card

Re: RasPiComm - RS-232, RS-485 and RTC

Re: New repository component for bleeding-edge firmware

Re: Sound Stuttering when playing MP3

Re: USB Audio

Re: ALSA on Raspbian

usb music + rpi-update == kernel dump