TX2 zed 卸载安装CUDA
1.显示CUDA_ERROR_INVAL_ID_CONTEXT,或者被Killed.
原因：显存不足
查看日志
dmesg | egrep -i -B100 ‘killed process’
解决方法：清除缓存，释放显存
sudo sh -c "echo 3 > /proc/sys/vm/drop_caches"2. zed摄像头打开失败，偶尔会成功
原因：未知
猜测可能是ZED版本问题
解决办法：重新安装ZED的SDK（平台是Jestson TX2, CUDA为9.0）ZED SDK 2.8，结果还是不行。
继续查看ZED官网，发现新版改进介绍有如下图
于是想着装上新版应该就能解决这个随机出现打不开的问题。但是新版只支持cuda10，而我的这个TX2装的是cuda9.0.
2.1 卸载cuda9.0
一次性卸载
sudo apt-get remove cuda*安装cuda10, 安装出错了，查了下是驱动版本不支持
我这个TX2不支持CUDA10.0，无奈又得装回cuda9.0
3. TX2安装CUDA9.0
先安装CUDA
下载包https://developer.nvidia.com/assets/embedded/secure/tools/files/jetpack-sdks/jetpack-3.3.2/JETPACK_332_b3/cuda-repo-l4t-9-0-local_9.0.252-1_arm64.deb
sudo dpkg -i cuda-repo-l4t-9-0-local_9.0.252-1_arm64.deb
sudo apt-get install cuda-toolkit-9-0
再装cudnn, 我这里是已经有了，之前没卸载cudnn
下载包https://developer.nvidia.com/assets/embedded/secure/tools/files/jetpack-sdks/jetpack-3.3.2/JETPACK_332_b3/libcudnn7_7.1.5.14-1+cuda9.0_arm64.deb
下载包https://developer.nvidia.com/assets/embedded/secure/tools/files/jetpack-sdks/jetpack-3.3.2/JETPACK_332_b3/libcudnn7-dev_7.1.5.14-1+cuda9.0_arm64.deb
下载包https://developer.nvidia.com/assets/embedded/secure/tools/files/jetpack-sdks/jetpack-3.3.2/JETPACK_332_b3/libcudnn7-doc_7.1.5.14-1+cuda9.0_arm64.deb
sudo dpkg -i libcudnn7_7.1.5.14-1+cuda9.0_arm64.deb
sudo dpkg -i libcudnn7-dev_7.1.5.14-1+cuda9.0_arm64.deb
sudo dpkg -i libcudnn7-doc_7.1.5.14-1+cuda9.0_arm64.deb
安装nvinfer
下载包https://developer.nvidia.com/assets/embedded/secure/tools/files/jetpack-sdks/jetpack-3.3.2/JETPACK_332_b3/libnvinfer4_4.1.3-1+cuda9.0_arm64.deb
下载包https://developer.nvidia.com/assets/embedded/secure/tools/files/jetpack-sdks/jetpack-3.3.2/JETPACK_332_b3/libnvinfer-dev_4.1.3-1+cuda9.0_arm64.deb
下载包https://developer.nvidia.com/assets/embedded/secure/tools/files/jetpack-sdks/jetpack-3.3.2/JETPACK_332_b3/libnvinfer-samples_4.1.3-1+cuda9.0_arm64.deb
sudo dpkg -i libnvinfer4_4.1.3-1+cuda9.0_arm64.deb
sudo dpkg -i libnvinfer-dev_4.1.3-1+cuda9.0_arm64.deb
sudo dpkg -i libnvinfer-samples_4.1.3-1+cuda9.0_arm64.deb
安装libgie
下载包https://developer.nvidia.com/assets/embedded/secure/tools/files/jetpack-sdks/jetpack-3.3.2/JETPACK_332_b3/libgie-dev_4.1.3-1+cuda9.0_arm64.deb
sudo dpkg -i libgie-dev_4.1.3-1+cuda9.0_arm64.deb
3..1 配置环境变量
修改cuda的环境变量（没有gedit可以用vim）
sudo gedit ~/.bashrc打开后，拉倒最下面
写入
export CUBA_HOME=/usr/local/cuda-9.0
export LD_LIBRARY_PATH=/usr/local/cuda-9.0/lib64:$LD_LIBRARY_PATH
export PATH=/usr/local/cuda-9.0/bin:/usr/local/bin/cmake:$PATH
保存退出，更新环境变量
source ~/.bashrc3.2 测试
nvcc -V
安装cuda9.0完毕。
重新测试了下几遍打开摄像头，能成功打开。
参考博客：
https://blog.csdn.net/ourkix/article/details/103902519
TX2手动安装cuda10.0https://blog.csdn.net/Zhaoxi_Li/article/details/100803353