我遵循了从在Ubuntu14.04,13.10中安装OpenCV 2.4.9编译opencv2.4.9的说明。
在构建过程中,我将得到以下错误。有人能告诉我怎么修理吗?
/usr/bin/ld: ../../lib/libopencv_highgui.a(cap_libv4l.cpp.o): undefined reference to symbol 'v4l2_munmap'
//usr/lib/x86_64-linux-gnu/libv4l2.so.0: error adding symbols: DSO missing from command line
collect2
我很难让一个宽屏显示器工作(三星奥德赛g9)。它似乎没有检测到任何决议,以阻止后备默认值。我尝试过多个内核版本,并遇到了同样的问题。目前,在linux511上,我在dmesg中得到了这个结果。
Feb 24 11:41:59 ben-pc kernel: [drm] perform_link_training_with_retries: Link training attempt 1 of 4 failed
Feb 24 11:41:59 ben-pc kernel: [drm] perform_link_training_with_retries: Link training attempt
升级到最新版本的Virtual后,在启动虚拟机时显示下面的消息
📷
运行/etc/init.d/vboxdrv安装程序
Stopping VirtualBox kernel modules ...done.
Uninstalling old VirtualBox DKMS kernel modules ...done.
Trying to register the VirtualBox kernel modules using DKMSError! Your kernel headers for kernel 3.8.0-31-generic cannot be found.
Please i
下面是来自vbox-install.log: DKMS的失败消息:
Failed to install using DKMS, attempting to install without
Makefile:183: *** Error: unable to find the sources of your current Linux kernel. Specify KERN_DIR=<directory> and run Make again. Stop.
我想我也可以问什么是内核?
如何解决这个问题?/var/crash/virtualbox-来宾-dkms.0。崩溃包含:
ProblemType: Package
DKMSBuildLog:
DKMS make.log for virtualbox-guest-6.1.10 for kernel 5.8.0-36-generic (x86_64)
Sun 10 Jan 11:53:48 EET 2021
make: Entering directory '/usr/src/linux-headers-5.8.0-36-generic'
CC [M] /var/lib/dkms/virtual