Following my post related to NetworkManager. I have found out about the workaround. If you have x86_64 system with 4GB support enabled, you should disable it in order to make NetworkManager work. I am not sure if that bug affects other distributions so, possibly the bug may be related to the x86_64 kernel. Let see if my theory can be verified.
The Raven Ridge APU is very capable processor to handle OpenCL inside some applications like Blender, Darktable and Gimp. Unfortunately, the current implementation from Mesa, clover, stuck to 1.3, is not supported. AMD released their driver 18.40 with OpenCL2.0+ targeting only Red Hat Enterprise Linux/Cent OS 6.10 and 7.5 in addition of Ubuntu LTS. The good new is the former rpm format can be used on Fedora. The graphical part of Raven Ridge is Vega 8, basically a cut-down of Vega56 or Vega64 meaning choosing either driver for RX Vega . The instruction is provided for extracting the rpm files but here is some requirements for OpenCL: kernel-devel (provided by Fedora repository) amdgpu-dkms dkms libopencl-amdgpu-pro opencl-amdgpu-pro-icd Once done, applications needing OpenCL will automatically detect the driver located on /opt/amdgpu/lib64 . Blender will list as unknown AMD GPU and Darktable will enable it. OpenCL from official AMD driver enabled on Darktable ...
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Currently using x86_64 with 4gb + networkmanager. No such issues.
Its a Thinkpad T61 with Intel 3945ABG wireless
Turns out it is something specific to the Marvell network card. I have two NICs on my motherboard and I tried the other one (Nvidia) and network seems to work perfectly! So maybe your problem could be fixed/worked around by trying a different network card.
When I upgraded from 2GB to 4GB, I went into the BIOS, Ctrl-F1 to get to the advanced chipset features, then enabled 4G RAM support. After that, when I booted I couldn't access the network. Interestingly, there was a boot-time message from the kernel
skge eth1: enabling interface, so I didn't look there for the problem.
After reading the posts here I went back, disabled 4G support and got my network back - at the cost of a few hundred MB of RAM. The kernel now only sees 3584MB instead of the 4096MB it saw before.
Pete