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  • 问题描述: 当使用appium 的java-client...unknown error: an X display is required for keycode conversions, consider using Xvfb在window的开发环境中,调整chromeDriver的版本,手机使用系统自带的输入键盘,查找

    问题描述:
    当使用appium 的java-client依赖去调用sendKey方法向控件发送文本时候,appium服务器报错如下:
    unknown error: an X display is required for keycode conversions, consider using Xvfb

    在window的开发环境中,调整chromeDriver的版本,手机使用系统自带的输入键盘,查找到对应控件后,能正常sendKey。
    但在linux环境下却不行,排除了chromeDriver的版本和appium版本问题后,结合网上资料,网上并没有具体的解决办法。
    再git上找到一个类似的解决描述:

    Ensure seleniumAddress: 'http://localhost:4444/wd/hub' matches your selenium server and avoid setting chromeOnly since that will effectively avoid using the headless selenium server.
    
    Also, Xvfb needs to run before webdriver-manager and you're missing xvfb-run given you seem to need it to do the X authority dance for you:
    
    #!/bin/sh
    
    export DISPLAY=:1
    
    Xvfb $DISPLAY -ac -screen 0 1280x1024x8 &
    sleep 1
    
    xvfb-run webdriver-manager start &

    最后具体了解linux 下的xvfb的原理,测试尝试解决成功解决sendKey报错问题。

    首先linux下需要安装Xvfb ,对应的centos系统安装yum -y install Xvfb

    安装成功后,启动Xvfb:

    Xvfb :1 -ac -screen 0 1280x1024x8 &

    然后通过xvfb启动appium服务

    xvfb-run appium -p4725 &
    或者到appium源码目录下node .执行
    xvfb-run node . -p4725 &

    展开全文
  • 参考: 【1】https://blog.csdn.net/Tang_Chuanlin/article/details/86433152 转载于:https://www.cnblogs.com/nxf-rabbit75/p/11298126.html

     

    参考:

    【1】https://blog.csdn.net/Tang_Chuanlin/article/details/86433152

    转载于:https://www.cnblogs.com/nxf-rabbit75/p/11298126.html

    展开全文
  • Ubuntu 16.04 - GeForce RTX 2080 Ti 安装 GPU 显卡驱动 (Display Driver) NVIDIA 引领人工智能计算 - NVIDIA https://www.nvidia.cn/ GEFORCE 驱动程序 https://www.geforce.cn/drivers 0. Pre-installation ...

    Ubuntu 16.04 - GeForce RTX 2080 Ti 安装 GPU 显卡驱动 (Display Driver)

    NVIDIA 引领人工智能计算 - NVIDIA
    https://www.nvidia.cn/

    GEFORCE 驱动程序
    https://www.geforce.cn/drivers

    0. Pre-installation Actions

    卸载安装过的驱动,执行命令:

    sudo /usr/bin/nvidia-uninstall
    sudo apt-get remove --purge nvidia*

    0.1 sudo service lightdm stop

    strong@foreverstrong:~$ sudo service lightdm stop
    [sudo] password for strong:
    strong@foreverstrong:~$
    

    0.2 sudo /usr/bin/nvidia-uninstall

    strong@foreverstrong:~$ sudo /usr/bin/nvidia-uninstall
    strong@foreverstrong:~$
    

    If you plan to no longer use the NVIDIA driver, you should make sure that no X screens are configured to use the NVIDIA X driver in your X configuration file. If you used nvidia-xconfig to configure X, it may have created a backup of your original configuration. Would you like to run nvidia-xconfig --restore-original-backup to attempt restoration of the original X configuration file? -> No
    在这里插入图片描述

    Uninstallation of existing driver: NVIDIA Accelerated Graphics Driver for Linux-x86_64 (430.14) is complete. -> OK
    在这里插入图片描述

    查看电脑支持的驱动版本:

    sudo apt-cache search nvidia*

    查看 Ubuntu 推荐的驱动版本:

    ubuntu-drivers devices

    strong@foreverstrong:~$ ubuntu-drivers devices
    == /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0 ==
    vendor   : NVIDIA Corporation
    modalias : pci:v000010DEd00001B80sv00007377sd00001110bc03sc00i00
    driver   : nvidia-384 - distro non-free
    driver   : nvidia-415 - third-party free
    driver   : nvidia-410 - third-party free
    driver   : nvidia-430 - third-party free recommended
    driver   : nvidia-396 - third-party free
    driver   : xserver-xorg-video-nouveau - distro free builtin
    driver   : nvidia-390 - third-party free
    driver   : nvidia-418 - third-party free
    
    strong@foreverstrong:~$
    

    BIOS 中务必关闭 Secure Boot。不然会出现 Unable to load the ‘nvidia-drm’ kernel module. 的报错。

    1. 手动搜索驱动程序

    在这里插入图片描述

    2. 搜索结果

    在这里插入图片描述

    3. Linux x64 (AMD64/EM64T) Display Driver

    在这里插入图片描述

    NVIDIA-Linux-x86_64-430.14.run

    4. Verify You Have a Supported Version of Linux

    To determine which distribution and release number you’re running, type the following at the command line:

    $ uname -m && cat /etc/*release

    deepnorth@deepnorth-amax:~$ uname -m && cat /etc/*release
    x86_64
    DISTRIB_ID=Ubuntu
    DISTRIB_RELEASE=16.04
    DISTRIB_CODENAME=xenial
    DISTRIB_DESCRIPTION="Ubuntu 16.04.6 LTS"
    NAME="Ubuntu"
    VERSION="16.04.6 LTS (Xenial Xerus)"
    ID=ubuntu
    ID_LIKE=debian
    PRETTY_NAME="Ubuntu 16.04.6 LTS"
    VERSION_ID="16.04"
    HOME_URL="http://www.ubuntu.com/"
    SUPPORT_URL="http://help.ubuntu.com/"
    BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
    VERSION_CODENAME=xenial
    UBUNTU_CODENAME=xenial
    deepnorth@deepnorth-amax:~$
    

    5. Verify the System Has gcc Installed

    To verify the version of gcc installed on your system, type the following on the command line:

    $ gcc --version

    deepnorth@deepnorth-amax:~$ gcc --version
    gcc (Ubuntu 5.4.0-6ubuntu1~16.04.11) 5.4.0 20160609
    Copyright (C) 2015 Free Software Foundation, Inc.
    This is free software; see the source for copying conditions.  There is NO
    warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    
    deepnorth@deepnorth-amax:~$
    

    6. Verify the System has the Correct Kernel Headers and Development Packages Installed

    The version of the kernel your system is running can be found by running the following command:

    $ uname -r

    deepnorth@deepnorth-amax:~$ uname -r
    4.15.0-54-generic
    deepnorth@deepnorth-amax:~$
    

    Ubuntu:
    The kernel headers and development packages for the currently running kernel can be installed with:

    $ sudo apt-get install linux-headers-$(uname -r)

    deepnorth@deepnorth-amax:~$ uname -r
    4.15.0-54-generic
    deepnorth@deepnorth-amax:~$
    deepnorth@deepnorth-amax:~$ sudo apt-get install linux-headers-$(uname -r)
    [sudo] password for deepnorth:
    Reading package lists... Done
    Building dependency tree
    Reading state information... Done
    linux-headers-4.15.0-54-generic is already the newest version (4.15.0-54.58~16.04.1).
    linux-headers-4.15.0-54-generic set to manually installed.
    0 upgraded, 0 newly installed, 0 to remove and 7 not upgraded.
    deepnorth@deepnorth-amax:~$
    

    7. CTRL + ALT + F1 进入终端界面,关闭图形界面

    deepnorth@deepnorth-amax:~$ sudo service lightdm stop
    deepnorth@deepnorth-amax:~$
    

    图形界面将会被关闭。可以使用 CTRL + ALT + F7 检查一下。

    如果后续需要关闭图形界面,执行如下命令:

    sudo /etc/init.d/lightdm stop
    sudo service lightdm stop

    如果后续需要开启图形界面,执行如下命令:

    sudo service lightdm start
    sudo /etc/init.d/lightdm start

    8. Disabling Nouveau

    To install the Display Driver, the Nouveau drivers must first be disabled. Each distribution of Linux has a different method for disabling Nouveau.

    The Nouveau drivers are loaded if the following command prints anything:

    $ lsmod | grep nouveau

    deepnorth@deepnorth-amax:~$ lsmod | grep nouveau
    nouveau              1724416  0
    mxm_wmi                16384  1 nouveau
    video                  45056  1 nouveau
    ttm                   106496  2 ast,nouveau
    drm_kms_helper        172032  2 ast,nouveau
    i2c_algo_bit           16384  3 igb,ast,nouveau
    drm                   401408  5 drm_kms_helper,ast,ttm,nouveau
    wmi                    24576  2 mxm_wmi,nouveau
    deepnorth@deepnorth-amax:~$
    

    Ubuntu:

    1. Create a file at /etc/modprobe.d/blacklist-nouveau.conf with the following contents:

    blacklist nouveau
    options nouveau modeset=0

    1. Regenerate the kernel initramfs:

    $ sudo update-initramfs -u

    i -> INSERT
    
    blacklist nouveau
    options nouveau modeset=0
    
    ESC -> 退出编辑模式
    :wq -> 保存
    
    deepnorth@deepnorth-amax:~$ sudo vim /etc/modprobe.d/blacklist-nouveau.conf
    deepnorth@deepnorth-amax:~$ cat /etc/modprobe.d/blacklist-nouveau.conf
    blacklist nouveau
    options nouveau modeset=0
    deepnorth@deepnorth-amax:~$ sudo update-initramfs -u
    update-initramfs: Generating /boot/initrd.img-4.15.0-54-generic
    W: Possible missing firmware /lib/firmware/ast_dp501_fw.bin for module ast
    deepnorth@deepnorth-amax:~$
    

    9. 重启电脑,验证驱动是否禁用成功

    deepnorth@deepnorth-amax:~$ reboot
    Failed to set wall message, ignoring: Interactive authentication required.
    Failed to reboot system via logind: Interactive authentication required.
    Failed to start reboot.target: Interactive authentication required.
    See system logs and 'systemctl status reboot.target' for details.
    Failed to open /dev/initctl: Permission denied
    Failed to talk to init daemon.
    deepnorth@deepnorth-amax:~$
    deepnorth@deepnorth-amax:~$ sudo reboot
    

    lsmod | grep nouveau 如果没有输出内容,则禁用成功。

    deepnorth@deepnorth-amax:~$ lsmod | grep nouveau
    deepnorth@deepnorth-amax:~$
    

    10. CTRL + ALT + F1 进入终端界面,关闭图形界面

    deepnorth@deepnorth-amax:~$ sudo service lightdm stop
    deepnorth@deepnorth-amax:~$
    

    图形界面将会被关闭。可以使用 CTRL + ALT + F7 检查一下。

    11. sudo sh ./NVIDIA-Linux-x86_64-430.14.run -no-opengl-files

    deepnorth@deepnorth-amax:~$ cd software/
    deepnorth@deepnorth-amax:~/software$ ll
    total 120776
    drwxrwxr-x  2 deepnorth deepnorth      4096 7月   9 21:06 ./
    drwxr-xr-x 19 deepnorth deepnorth      4096 7月   9 21:54 ../
    -rw-rw-r--  1 deepnorth deepnorth 110886277 7月   9 21:04 NVIDIA-Linux-x86_64-43                                                       0.14.run
    -rwxrwxrwx  1 deepnorth deepnorth  12771800 7月   9 09:20 teamviewer_13.2.75536_                                                       amd64.deb*
    deepnorth@deepnorth-amax:~/software$
    deepnorth@deepnorth-amax:~/software$ chmod a+x NVIDIA-Linux-x86_64-430.14.run
    deepnorth@deepnorth-amax:~/software$
    deepnorth@deepnorth-amax:~/software$ ll
    total 120776
    drwxrwxr-x  2 deepnorth deepnorth      4096 7月   9 21:06 ./
    drwxr-xr-x 19 deepnorth deepnorth      4096 7月   9 21:54 ../
    -rwxrwxr-x  1 deepnorth deepnorth 110886277 7月   9 21:04 NVIDIA-Linux-x86_64-430.14.run*
    -rwxrwxrwx  1 deepnorth deepnorth  12771800 7月   9 09:20 teamviewer_13.2.75536_amd64.deb*
    deepnorth@deepnorth-amax:~/software$
    
    deepnorth@deepnorth-amax:~/software$ sudo sh ./NVIDIA-Linux-x86_64-430.14.run -no-opengl-files
    

    -no-opengl-files 只安装驱动文件,不安装OpenGL文件。务必添加这个参数。
    -no-x-check 安装驱动时不检查 x 服务,安装驱动时关闭 x 服务。
    -no-nouveau-check 安装驱动时不检查 nouveau,安装驱动时禁用 nouveau。

    The distribution-provided pre-install script failed! Are you sure you want to continue? -> Continue installation
    在这里插入图片描述

    Would you like to register the kernel module souces with DKMS? This will allow DKMS to automatically build a new module, if you install a different kernel later? -> Yes
    Dynamic Kernel Module Support,DKMS:动态内核模块支持
    在这里插入图片描述

    WARNING: Unable to find a suitable destination to install 32-bit compatibility libraries. Your system may not be set up for 32-bit compatibility. 32-bit compatibility files will not be installed; if you wish to install them, re-run the installation and set a valid directory with the --compat32-libdir option. -> OK
    在这里插入图片描述

    Would you like to run the nvidia-xconfig utility to automatically update your X configuration file so that the NVIDIA X driver will be used when you restart X? Any pre-existing X configuration file will be backed up. -> Yes
    在这里插入图片描述

    Your X configuration file has been successfully updated. Installation of the NVIDIA Accelerated Graphics Driver for Linux-x86_64 (version: 430.14) is now complete. -> OK
    在这里插入图片描述

    deepnorth@deepnorth-amax:~/software$ sudo sh ./NVIDIA-Linux-x86_64-430.14.run -no-opengl-files
    Verifying archive integrity... OK
    Uncompressing NVIDIA Accelerated Graphics Driver for Linux-x86_64 430.14..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
    deepnorth@deepnorth-amax:~/software$   (version: 430.14) is now complete.
    

    12. nvidia-smi

    deepnorth@deepnorth-amax:~/software$ nvidia-smi
    Tue Jul  9 22:24:29 2019
    +-----------------------------------------------------------------------------+
    | NVIDIA-SMI 430.14       Driver Version: 430.14       CUDA Version: 10.2     |
    |-------------------------------+----------------------+----------------------+
    | GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
    | Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
    |===============================+======================+======================|
    |   0  GeForce RTX 208...  Off  | 00000000:1B:00.0 Off |                  N/A |
    | 32%   48C    P0    66W / 250W |      0MiB / 11019MiB |      0%      Default |
    +-------------------------------+----------------------+----------------------+
    |   1  GeForce RTX 208...  Off  | 00000000:1C:00.0 Off |                  N/A |
    | 34%   49C    P0    60W / 250W |      0MiB / 11019MiB |      0%      Default |
    +-------------------------------+----------------------+----------------------+
    |   2  GeForce RTX 208...  Off  | 00000000:1D:00.0 Off |                  N/A |
    | 34%   49C    P0    63W / 250W |      0MiB / 11019MiB |      0%      Default |
    +-------------------------------+----------------------+----------------------+
    |   3  GeForce RTX 208...  Off  | 00000000:1E:00.0 Off |                  N/A |
    | 33%   49C    P0    54W / 250W |      0MiB / 11019MiB |      0%      Default |
    +-------------------------------+----------------------+----------------------+
    |   4  GeForce RTX 208...  Off  | 00000000:89:00.0 Off |                  N/A |
    | 32%   48C    P0    78W / 250W |      0MiB / 11019MiB |      0%      Default |
    +-------------------------------+----------------------+----------------------+
    |   5  GeForce RTX 208...  Off  | 00000000:8A:00.0 Off |                  N/A |
    | 34%   49C    P0    65W / 250W |      0MiB / 11019MiB |      0%      Default |
    +-------------------------------+----------------------+----------------------+
    |   6  GeForce RTX 208...  Off  | 00000000:8B:00.0 Off |                  N/A |
    | 33%   49C    P0    52W / 250W |      0MiB / 11019MiB |      1%      Default |
    +-------------------------------+----------------------+----------------------+
    |   7  GeForce RTX 208...  Off  | 00000000:8C:00.0 Off |                  N/A |
    | 33%   50C    P0    55W / 250W |      0MiB / 11019MiB |      0%      Default |
    +-------------------------------+----------------------+----------------------+
    
    +-----------------------------------------------------------------------------+
    | Processes:                                                       GPU Memory |
    |  GPU       PID   Type   Process name                             Usage      |
    |=============================================================================|
    |  No running processes found                                                 |
    +-----------------------------------------------------------------------------+
    deepnorth@deepnorth-amax:~/software$
    

    13. reboot

    查看显卡驱动版本:

    cat /proc/driver/nvidia/version

    yongqiang@famu-sys:~$ cat /proc/driver/nvidia/version
    NVRM version: NVIDIA UNIX x86_64 Kernel Module  390.48  Thu Mar 22 00:42:57 PDT 2018
    GCC version:  gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.9) 
    yongqiang@famu-sys:~$
    
    deepnorth@deepnorth-amax:~/software$ cat /proc/driver/nvidia/version
    NVRM version: NVIDIA UNIX x86_64 Kernel Module  430.14  Wed May  8 01:10:53 UTC 2019
    GCC version:  gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.11)
    deepnorth@deepnorth-amax:~/software$
    
    展开全文
  • ubuntu18.04在"【ok】Starting Gnome Display Manager"问题处理 目录标题ubuntu18.04在"【ok】Starting Gnome Display Manager"问题处理处理 处理 原因:磁盘空间已满或更新异常 解决: 1.按alt+ctrl+F1~F6,...

    ubuntu18.04卡在"【ok】Starting Gnome Display Manager"问题处理

    处理

    在这里插入图片描述
    原因:磁盘空间已满或更新异常
    解决:

    1.按alt+ctrl+F1~F6,输入用户名和密码
    2.输入:df -h // 检查磁盘空间
    3.会发现:文件系统 /dev/loopx 已用% 挂载点已100%

    5.输入:sudo apt autoremove --purge snapd
    6.设置–1)增加运行内存-----2)增加硬盘大小----3)重启

    展开全文
  • 虚拟机ubuntu系统开机时在 started gnome display manager,无法开机。 截图如下: 原因: 磁盘空间已满或更新异常。 解决: 按alt+ctrl+F1~F6,输入用户名和密码(具体是几取决于版本) 输入: df -h // 检查...
  • 昨天把移动硬盘上装的ubuntu插到一台老电脑上,出现题目问题,不能进tty,在外网找的解决方案,在recovery mode下: ...按ctrl+x 来自: https://blog.csdn.net/xixihaha331/article/details/64919059
  • am335x的网卡相关资料

    千次阅读 2014-09-29 15:48:58
     * Code for AM335X EVM.  *  * Copyright (C) 2011 Texas Instruments, Inc. - http://www.ti.com/  *  * This program is free software; you can redistribute it and/or  * modify it under the ...
  • Windows 3.x 下少见的通用显示驱动,世所罕见,怀旧必须。 Windows 3.1 256 Color Display Driver Release Notes Copyright 1993 Microsoft Corporation -------------------------------------------------- ...
  • You appear to be running an X server; please exit X before... 原来,更新驱动需要关闭图形桌面。赶紧查看一下,是不是真的有X ps aux | grep X看到 $ ps aux | grep X root 2242 1.6 0.0 154212 35820 tty7 ...
  • Linux安装NVIDIA显卡驱动的正确姿势

    万次阅读 多人点赞 2018-08-20 21:05:58
    nouveau,是一个自由及开放源代码显卡驱动程序,是为Nvidia的显示所编写,也可用于属于系统芯片的NVIDIA Tegra系列,此驱动程序是由一群独立的软件工程师所编写,Nvidia的员工也提供了少许帮助。 该项目的目标为...
  • ubuntu 14.04 unknow display

    千次阅读 2015-09-28 18:36:25
    ubuntu unknown display
  • Android display

    千次阅读 2011-11-24 20:33:41
    From:  ... Android display架构分析(一) http://hi.baidu.com/leowenj/blog/item/429c2dd6ac1480c851da4b95.html 高通7系列硬件架构分析 如上图,高通7系列 Displa
  • 高通Android display架构分析

    千次阅读 2015-06-27 17:07:00
    Kernel Space Display架构介绍函数和数据结构介绍函数和数据结构介绍函数和数据结构介绍数据流分析初始化过程分析User Space display接口Kernel display接口典型应用flow分析介绍 Surface manager(surface ...
  • 【转载】显卡接口详细解释 VGA(D-Sub),DVI,HDMI,Display Port,S-VIDEO  D-Sub接口又名VGA接口,是连接基于模拟信号显示器的最要的端口,它传递的是标准RGB信号。这种模拟信号接口的优点是传输带宽高,...
  • Display Port 和 eDisplay Port

    千次阅读 2016-03-20 09:43:00
    Display Port是外置接口,通过线缆连接主机与显示器之间,eDisplay Port 常用于笔记本电脑或者一体机之间内置接口,eDisplay Port是基于Display Port协议,电气特性稍有不同。
  • 用下面的命令可以看到显卡的信息:这边是针对1440 x 900, 1920 x 1080 道理类似  $ lspci | grep VGA  00:02.0 VGA compatible controller: Intel Corporation Mobile 945GME Express Integrated Graphics ...
  • WIFI Display Spec

    千次阅读 2013-11-26 15:01:07
    原文地址: ... 在wifi display的标准中定义了支持的audio和video的标准:   Audio CODECs supported in Wi-Fi Display. Format Description
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  • Xhost 和Display

    2011-02-15 15:29:00
     xhost 和 DISPLAY 由於 UNIX通常配備 X 視窗,所以請先進入 X 視窗環境。您必須要知道以下資料,才能使用遠端的 X: 目的地電腦的網域名稱或是 IP 位址 您目前所使用的電腦的網域名稱或是 IP 位址 設...
  • Linux DRM(一)Display Server

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    一、Display ServerX Windows 和 X Server The X Window System (X11, or shortened to simply X) is a windowing system for bitmap displays, common on UNIX-like computer operating systems. X provides the...
  • 2、默认情况下Mac OS X是不安装X11的; 因此,在Mac上安装WireShark,首先找出Mac OS 安装DVD安装X11。 安装完以后 echo $DISPLAY看看是不是出现如下结果 :0.0 如果没有,请执行如下命令行: DISPLAY=:0.0; ...
  • quick-cocos2dx display

    千次阅读 2013-12-13 18:27:07
    local display = {} 1、sizeInPixels 4、display.contentScaleFactor 5、display.size -- winsize 6、display.width -- size.w 7、display.height -- size.h 8、d
  • Display--基本概念

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