Now I have tried with (according to the wiki..) known/good power supply (Nokia) and – allegedly good – hub (Logik) and am getting the same errors, and disconnect of the USB Ethernet connection.. usb 1-1.2: new high speed USB device number 24 using dwc_otg usb 1-1.2: New USB device found, idVendor=05e3, idProduct=0608 usb 1-1.2: New USB device … Continue reading →
After many fruitless attempts to cobble together a working USB hub setup for the Raspberry Pi, I came to the conclusion – after trying all the USB/mains power adapters I had (from various phones and other accessories), that the power supply made a significant difference to the behaviour of the Pi.. With some adapters, I had to … Continue reading →
Thought I would try a couple more options, just in case.. First, I confirmed that the USB sound card works connected directly to one of the Pi USB ports (using a USB extension cable): usb 1-1.2: new full speed USB device number 13 using dwc_otg usb 1-1.2: New USB device found, idVendor=0d8c, idProduct=000c usb 1-1.2: New USB … Continue reading →
Another option I just tried turned nasty very quickly… I wondered what would happen if all external USB devices were connected via the (powered) hub, but the answer was soon apparent: usb 1-1.3.1.1: reset low speed USB device number 6 using dwc_otg usb 1-1.3.1.2: reset full speed USB device number 7 using dwc_otg INFO:: periodic_channel_available: Total channels: … Continue reading →
My Raspberry Pi had been behaving itself on the ‘hardware’ side since I took possession of it, weeks ago. After reading about limitations of USB connectivity, I obtained a reasonably-priced powered USB hub, with the intention (not surprisingly!) of connecting more things – including testing the possibility of USB sound.. So…. I connected the USB hub, and … Continue reading →
After applying the SD Card disk formatting and ‘optimisation’ mentioned previously, I decided to attempt to bring the version of Fedora (14) up to date.. The Fedora 17 Pi ‘respin’ is due sometime in May, but I decided – based on my experiences with Fedora 17 on the Dreamplug – to try to ‘hack’ F17 from the … Continue reading →
Despite previous ‘tweaks’, I have been experiencing continuing problems with SD Card Linux performance, and with the unreliable operations of yum / rpm, with associated db corruption, when they have to be ‘killed’ after hanging.. Based on two excellent pieces of prior research: http://blogofterje.wordpress.com/2012/01/14/optimizing-fs-on-sd-card/ and http://www.raspberrypi.org/forum/projects-and-collaboration-general/optimizing-linux-for-flash-memory – I will be having a stimulating (!) time performing formatting … Continue reading →
Well, I have tried 3.3.1, and – despite applying 2 patches – the DVB-S2 card (HVR4000) still doesn’t work reliably. I was going to try 3.4-rc2, but it seems there are ‘issues’ with this, according to LKML (the Linux Kernel Mailing List), and it can best be classified as ‘unstable’ at present.. So – I have reverted … Continue reading →
Tried the Fedora 17 Alpha release on a crash-and-burn x86_64 system… Definitely alpha quality… Biggest show-stopper was the weird behaviour of grub2 and dracut, which meant that only one of the kernel choices in the grub2 menu booted OK, but others got ‘lost’ and threw all sorts of worrying udev and ‘xxx not found’ messages, before hanging … Continue reading →