Category Archives: Opinion

Hardware – Inexpensive Small Linux Laptop..

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After some research, I decided to use an Intel-powered ex-Chromebook for my portable Linux project..    I settled on an Acer Chromebook c720p, as this could be ‘converted’ to run Linux natively, rather than in emulation via Crouton..    There are several articles on this, but I found useful info (and a chassis/mobo diagram) here:  https://ankitrasto.wordpress.com/2015/02/06/clean-installing-linux-on-the-acer-c720pc720-chromebook-a-complete-guide/ If you are … Continue reading →

Kernel – 4.11 released, Patched VMware OK, NVIDIA Still Not OK..

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Kernel 4.11 Final is out, a week later than planned, and brief details of changes from -rc8 are here:  http://lkml.iu.edu/hypermail/linux/kernel/1704.3/04608.html As expected, VMware 12.5.5 with the 4.11 patches is still OK (see https://rglinuxtech.com/?p=1932 ), but there is still no ‘legal’ solution for the latest NVIDIA driver – 381.09 (see https://devtalk.nvidia.com/default/topic/1002820/linux/-patch-381-09-kernel-4-11-rc5/ ): …………….. Building modules, stage 2. MODPOST … Continue reading →

NVIDIA – Still no 4.11 Solution, but a ‘Good’ Patch for Old Version..

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Kernel 4.11 ‘final’ has been delayed for a week, and -rc8 has been released..     4.11-patched VMware 12.5.5 is OK, but there is still only a ‘Bad’ (illegal licence modification) patch for the latest NVIDIA driver..   (see https://devtalk.nvidia.com/default/topic/1002820/linux/-patch-381-09-kernel-4-11-rc5/ ) But, if you have an older card, there is a valid patch for driver 340.102 – which does not … Continue reading →

NVIDIA – New Driver, Finally OK with Kernel 4.10..

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NVIDIA have released a new ‘beta’ driver – 381.09 – and release notes etc. are here: http://www.nvidia.com/download/driverResults.aspx/117002/en-us The driver compiles OK with Kernel 4.10 (tested with 4.10.8) but still requires an ‘illegal’ patch for 4.11, due to ongoing code licensing issues..    There is a patch available, and details are here:   https://devtalk.nvidia.com/default/topic/1002820/linux/-patch-381-09-kernel-4-11-rc5/ Robert Gadsdon.   April 6, 2017.

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Kernel – 4.11-rc1 and BTRFS – a Warning..?

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I encountered a catastrophic problem with btrfs formatted system disk partition corruption, shortly after updating a test system to Kernel 4.11-rc1. To put this in context, this may be an isolated incident, and I have not seen problems – so far – mentioned elsewhere..    But.. there a quite a lot of BTRFS changes on 4.11, and – … Continue reading →

Kernel – 4.11-rc1 Released – Breaks (Patched) VMware and NVIDIA..

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Kernel 4.11-rc1 has been released, and brief details are here: http://lkml.iu.edu/hypermail/linux/kernel/1703.0/03031.html Updated the test system, and 4.10-patched versions of VMware 12.5.2 and NVIDIA 378.13 fail to compile.. VMware (12.5.2 – patched for 4.9/4.10): …………. /tmp/modconfig-rRcJiJ/vmmon-only/linux/hostif.c: In function ‘HostIFFastClockThread’: /tmp/modconfig-rRcJiJ/vmmon-only/linux/hostif.c:3267:4: error: implicit declaration of function ‘allow_signal’ [-Werror=implicit-function-declaration] allow_signal(SIGKILL); ^~~~~~~~~~~~ /tmp/modconfig-rRcJiJ/vmmon-only/linux/hostif.c: In function ‘HostIF_SetFastClockRate’: /tmp/modconfig-rRcJiJ/vmmon-only/linux/hostif.c:3421:10: error: implicit declaration of … Continue reading →

NVIDIA – New Drivers, Still Broken with 4.10 – And a Patch for 378.13..

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NVIDIA have released new drivers 375.39 (‘long term’) and 378.13 (‘short term’) and details are here:  http://www.nvidia.com/download/driverResults.aspx/114708/en-us and http://www.nvidia.com/download/driverResults.aspx/115031/en-us. Both still fail to compile with Kernel 4.10 (tested with 4.10-rc8) and I tried the previous 378.09 patch against 379.13, but it failed to apply cleanly, as more code has changed.. $ cat nv-37809-410-patch.patch |patch -p0 patching file … Continue reading →

ARM64 – Odroid C2 – Patches for USB..

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Thanks to Heiner Kallweit for info on two USB patches for the Odroid C2, and thanks to John Youn for the patches themselves..  They can be found at http://www.spinics.net/lists/linux-usb/msg151687.html and http://www.spinics.net/lists/linux-usb/msg151688.html . I have applied these to Kernel 4.10-rc4 (including the Ethernet TX patch) and now USB is working, and detects/connects devices – sort of.. Plug in … Continue reading →

ARM64 – Kernel 4.10-rc4 on Odroid C2 – Ethernet Still Needs DTS Patch..

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Just updated the Odroid C2 to Kernel 4.10-rc4, but the Ethernet hang problem still persists..   Applied the dts Ethernet TX patch (see https://rglinuxtech.com/?p=1872 ) , and it works OK now.. There seems to be a bit of a backlog of Meson/GXBB patches, and I read that the Ethernet TX fix was supposed to be merged with -rc4, … Continue reading →

ARM64 – Odroid C2 – Kernel 4.10-rc Config Example..

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As Odroid C2 support by the ‘mainline’ kernel is – hopefully – nearing completion, I have put a sample of my Kernel config at http://pastebin.com/XWfMEWHx . The C2 is used for ‘headless’ operation, at present, and USB still does not work..    The kernel is 4.10-rc3, with the ‘Ethernet-TX’ dts patch applied.. (see https://rglinuxtech.com/?p=1872 ). Robert Gadsdon.   January … Continue reading →