小编the*_*ist的帖子

我刚刚更新了我的显卡驱动器

sudo apt install nvidia-driver-470
sudo apt install cuda-drivers-470

我决定以这种方式安装它们，因为它们在尝试时受到阻碍sudo apt upgrade。然后我错误地sudo apt autoremove清理了旧包。重新启动计算机以正确设置新驱动程序后，我无法再将 GPU 加速与 Tensorflow 结合使用。

import tensorflow as tf
tf.test.is_gpu_available()
WARNING:tensorflow:From <stdin>:1: is_gpu_available (from tensorflow.python.framework.test_util) is deprecated and will be removed in a future version.
Instructions for updating:
Use `tf.config.list_physical_devices('GPU')` instead.
2021-12-07 16:52:01.771391: I tensorflow/core/platform/cpu_feature_guard.cc:151] This TensorFlow binary is optimized with oneAPI Deep Neural Network Library (oneDNN) to use the following CPU instructions in performance-critical operations:  AVX2 FMA
To enable them in other …

我正在尝试创建一个 Material UI range Slider，它有两个值。如果我设置它就有效：

const [value, setValue] = React.useState([5,20]);
   const [value, setValue] = React.useState([val]);
   const handleChange = (event, newValue) => {
       setValue(newValue);
  };

  return (
    <div className={classes.root}>
      <Typography id="range-slider" gutterBottom>
        Temperature range
      </Typography>
      <Slider
        value={value}
        onChange={handleChange}
        valueLabelDisplay="auto"
        aria-labelledby="range-slider"
        getAriaValueText={valuetext}
      />
      <Input value={value} />
    </div>
  );

但是，如果我设置一个值并将其分配给这样的 useState 常量，则它不起作用。即使有错误，我也不明白为什么：

var val = [5,20]
const [value, setValue] = React.useState([val])

我收到此错误：

Warning: Failed prop type: Invalid prop `value` supplied to `ForwardRef(Slider)`.
    in ForwardRef(Slider) (created by WithStyles(ForwardRef(Slider)))

    in WithStyles(ForwardRef(Slider)) (at demo.js:32)

    in div …