On 08/15 10:33, Corentin “Nado” Pazdera wrote: > August 15, 2018 4:19 AM, tu...@posteo.de wrote: > > > On 08/14 11:16, Nikos Chantziaras wrote: > > > >> On 14/08/18 13:35, tu...@posteo.de wrote: > >> Hi, > >> > >> after upgrading to nvidia-drivers-396.51 no CUDA devices were found. > >> Last version, which works for me is nvidia-drivers-396.24-r1. > >> > >> Do you have the "uvm" USE flag set? It might be required for CUDA, but it's > >> disabled by default (perhaps wrongly, because USE flags should follow > >> upstream defaults unless there's a reason not to.) > > > > Yes it is: > > > > (this is the version, which is currentlu still working > > Installed versions: 396.24-r1(0/396)^md(08:31:04 PM 08/14/2018)(X driver > > kms static-libs tools uvm > > -acpi -compat -gtk3 -multilib -pax_kernel -wayland ABI_MIPS="-n32 -n64 > > -o32" ABI_PPC="-32 -64" > > ABI_S390="-32 -64" ABI_X86="64 -32 -x32" KERNEL="linux -FreeBSD") > > > > and set via /etc/portage/package.use > > > > # required by app-admin/conky-1.10.6-r1::gentoo[nvidia,X] > > # required by @selected > > # required by @world (argument) > >> =x11-drivers/nvidia-drivers-378.13 static-libs uvm > > > > What else could be the reason for the problem? > > How can I fix it? > > Can you also show content of modprobe.d file ? > Did you read the whole wiki page ? Did you check for MSI interrupts ? > https://wiki.gentoo.org/wiki/NVidia/nvidia-drivers#Driver_fails_to_initialize_when_MSI_interrupts_are_enabled > > Regards, > -- > Corentin “Nado” Pazdera >
The wiki-page is old...it speaks of nvidia-driver-174. modprobe.d/nvidia.conf: ---------------------------- # Nvidia drivers support alias char-major-195 nvidia alias /dev/nvidiactl char-major-195 # To tweak the driver the following options can be used, note that # you should be careful, as it could cause instability!! For more # options see /usr/share/doc/nvidia-drivers-396.24-r1/README # # !!! SECURITY WARNING !!! # DO NOT MODIFY OR REMOVE THE DEVICE FILE RELATED OPTIONS UNLESS YOU KNOW # WHAT YOU ARE DOING. # ONLY ADD TRUSTED USERS TO THE VIDEO GROUP, THESE USERS MAY BE ABLE TO CRASH, # COMPROMISE, OR IRREPARABLY DAMAGE THE MACHINE. options nvidia NVreg_DeviceFileMode=432 NVreg_DeviceFileUID=0 NVreg_DeviceFileGID=27 NVreg_ModifyDeviceFiles=1 modprobe.d/nvidia-rmmod.conf ---------------------------- # Nvidia UVM support remove nvidia modprobe -r --ignore-remove nvidia-drm nvidia-modeset nvidia-uvm nvidia All the configurations are working all the years up to x11-drivers/nvidia-drivers-396.24-r1. After that, no CUDA device was found. Based on logical reasons, I would tend to think, that it is something version specific and no global setting which is valid since nvidia-driver-174. Regards,
