Dear Tom, Thank you very much for thinking about this. Please see my replies below. -Ben
> Are you using the EPEL R 3.2.3 builds? I'm not sure what the question means, but I'm pretty sure the answer is no. I know I built the versions of R I used from source code (i.e., ./configure followed by make). > What version of Centos 7? 7.2? [bwittner@kagoshima ~]$ cat /etc/redhat-release CentOS Linux release 7.2.1511 (Core) [bwittner@kagoshima ~]$ rpm -q centos-release centos-release-7-2.1511.el7.centos.2.10.x86_64 [bwittner@kagoshima ~]$ uname -rmi 3.10.0-327.3.1.el7.x86_64 x86_64 x86_64 > Is the NVIDIA driver in play? I think so. When I execute the command lspci -v, the only block that has mention of VGA is the following: 07:00.0 VGA compatible controller: NVIDIA Corporation G84GL [Quadro FX 370] (rev a1) (prog-if 00 [VGA controller]) Subsystem: NVIDIA Corporation Device 0491 Flags: bus master, fast devsel, latency 0, IRQ 42 Memory at df000000 (32-bit, non-prefetchable) [size=16M] Memory at c0000000 (64-bit, prefetchable) [size=256M] Memory at dc000000 (64-bit, non-prefetchable) [size=32M] I/O ports at dc00 [size=128] Expansion ROM at defe0000 [disabled] [size=128K] Capabilities: <access denied> Kernel driver in use: nouveau > What version of the NVIDIA driver are you using? Since the output of lspci above said "Kernel driver in use: nouveau", I executed the command modinfo nouveau, getting the following output: filename: /lib/modules/3.10.0-327.3.1.el7.x86_64/kernel/drivers/gpu/drm/nouveau/nouveau.ko license: GPL and additional rights description: nVidia Riva/TNT/GeForce/Quadro/Tesla author: Nouveau Project rhelversion: 7.2 srcversion: C131306B4DEC7AB88BC647D alias: pci:v000012D2d*sv*sd*bc03sc*i* alias: pci:v000010DEd*sv*sd*bc03sc*i* depends: drm,drm_kms_helper,ttm,mxm-wmi,i2c-core,wmi,video,i2c-algo-bit intree: Y vermagic: 3.10.0-327.3.1.el7.x86_64 SMP mod_unload modversions signer: CentOS Linux kernel signing key sig_key: 3D:4E:71:B0:42:9A:39:8B:8B:78:3B:6F:8B:ED:3B:AF:09:9E:E9:A7 sig_hashalgo: sha256 parm: tv_norm:Default TV norm. Supported: PAL, PAL-M, PAL-N, PAL-Nc, NTSC-M, NTSC-J, hd480i, hd480p, hd576i, hd576p, hd720p, hd1080i. Default: PAL *NOTE* Ignored for cards with external TV encoders. (charp) parm: vram_pushbuf:Create DMA push buffers in VRAM (int) parm: nofbaccel:Disable fbcon acceleration (int) parm: tv_disable:Disable TV-out detection (int) parm: ignorelid:Ignore ACPI lid status (int) parm: duallink:Allow dual-link TMDS (default: enabled) (int) parm: pstate:enable sysfs pstate file, which will be moved in the future (int) parm: config:option string to pass to driver core (charp) parm: debug:debug string to pass to driver core (charp) parm: noaccel:disable kernel/abi16 acceleration (int) parm: modeset:enable driver (default: auto, 0 = disabled, 1 = enabled, 2 = headless) (int) parm: runpm:disable (0), force enable (1), optimus only default (-1) (int) parm: agpmode:AGP mode (0 to disable AGP) (int) The information in this e-mail is intended only for the ...{{dropped:11}} _______________________________________________ R-SIG-Fedora mailing list R-SIG-Fedora@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-fedora