I decided to try U-Boot on the Raspberry Pi 2, and the process has been fairly well documented in several places.. I used the latest U-Boot, with ‘patch’ info from here, as I needed Device Tree support: https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=108217. Actual ‘installation’ is simple, as I just copied the u-boot binary to the boot directory on the SD Card, … Continue reading →
Updated the CuBox-i4Pro and DreamPlug to Kernel 4.0-rc2.. No problems with the DreamPlug, and the CuBox just needed the same small patch as for -rc1.. http://rglinuxtech.com/?p=1338 CuBox-i4Pro: Fedora release 22 (Twenty Two) Kernel 4.0.0-rc2 on an armv7l (ttymxc0) ……………. ]# uname -a Linux rgcubox 4.0.0-rc2 #1 SMP Tue Mar 3 21:35:27 EST 2015 armv7l armv7l armv7l GNU/Linux … Continue reading →
This article relates to compilation on the latest Fedora (21) but can also apply to other Distros… The Distro-supplied version of Audacity is typically functionality-challenged, and does not allow working with some of the more up-to-date audio formats, due to US Patent law concerns.. The necessary functionality can be achieved by compiling it yourself, and this is … Continue reading →
After further testing, I found that the hgfs ‘shared folders’ function in VMware 10.0.2, which worked fine for Kernel 3.14, did not work for Kernel 3.15… I tried to find a patch, and eventually created a (fairly unsophisticated!) one for myself, and have tested it with VMware 10.0.2 (Linux ‘host’) and Linux Kernel 3.14.1 and 3.15-rc2 ‘guests’. … Continue reading →
NVIDIA have just released driver 334.16, but – despite the fact that Kernel 3.13 has been released for some time now – the driver still fails to load correctly, with the same ”Unknown symbol acpi_os_wait_events_complete (err 0)” error.. So, the existing known/good kernel 3.13 patch still applies, except that the section of the patch relating to /uvm/nvidia_uvm_linux.h … Continue reading →
There is an article on DevZone that includes a possible Kernel 3.14 patch, from s_molgaard, for driver 331.38: https://devtalk.nvidia.com/default/topic/683534/linux/331-38-on-3-14-rc1-kernel/ The patch format is – apparently – for kernel boot-time patching using dkms, which I don’t use.. So.. I just manually applied the changes shown for nv-linux.h to the Kernel 3.13 patch mentioned in my previous article http://rglinuxtech.com/?p=1032, … Continue reading →
Installed kernel 3.13.1 on my main system, and found a better version of the NVIDIA patch for driver 331.38 here: http://cvs.rpmfusion.org/viewvc/rpms/nvidia-kmod/devel/nvidia_3.13_kernel.patch?revision=1.3&root=nonfree&view=markup Video playback – especially on kaffeine – is better, but I am still getting problems with uvcvideo and usb audio etc: ……. [ 841.265226] uvcvideo: Found UVC 1.00 device VF0700 Live! Cam Chat HD (041e:4088) [ … Continue reading →
Installed 3.13 Final on my test system, and then on my main system, and encountered an odd problem with VMware (10.0.1).. On my test system, VMware had been compiling and installing/running OK on all the 3.13-rc versions, and 3.13 Final, but on my main system, vmnet failed to compile: … /tmp/modconfig-I1rVjt/vmnet-only/filter.c:206:1: error: conflicting types for ‘VNetFilterHookFn’ VNetFilterHookFn(unsigned … Continue reading →
Thanks to more detective work by Adam Baxter, I have found a work-in-progress patch for the compile failure on 3.13-rc.. http://article.gmane.org/gmane.linux.ports.arm.kernel/282669 So.. I now have Kernel 3.13-rc3 running on the DreamPlug: Fedora release 18 (Spherical Cow) Kernel 3.13.0-rc3 on an armv5tel (ttyS0) ………………….. # uname -a Linux rgdreamplug 3.13.0-rc3 #2 PREEMPT Sat Dec 7 15:02:56 GMT 2013 … Continue reading →
Although the latest NVIDIA drivers compile OK on kernel 3.13-rc1, they do not load/run correctly, and may only give low-res output… The same problem exists with the newest version just released – 319.76.. nvidia: Unknown symbol acpi_os_wait_events_complete (err 0) There is a fix available, in this thread from DevZone: https://devtalk.nvidia.com/default/topic/644906/331-20-on-3-13-rc1-kernel/ – but note the logic correction mentioned … Continue reading →