从 ubuntu 16.04 一直升级到 ubuntu 18.04 后，我在 apt-get 升级期间看到了很多这样的消息。
/sbin/ldconfig.real: Warning: ignoring configuration file that cannot be opened: /etc/ld.so.conf.d/nvidia_settings.conf
update-initramfs: Generating /boot/initrd.img-4.15.0-29-generic
/sbin/ldconfig.real: Warning: ignoring configuration file that cannot be opened: /etc/ld.so.conf.d/nvidia_settings.conf: No such file or directory
有时我的 nvidia 驱动程序会加载，有时却不会。我目前正在使用 ppa:graphics-drivers/ppa。我试过多次清除 nvidia。想不必全新安装。看起来问题是 nvidia_settings_conf 的符号链接无处可去，但我不确定它应该在哪里。
输出 nvidia-smi
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 390.77 Driver Version: 390.77 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 …