发现Ubuntu一个有趣的bug

本文介绍了Ubuntu操作系统中遇到的一个bug:在使用选取框进行文件选择时,按下特定按键会意外弹出右键菜单,导致选取框留在桌面上无法消失。文章详细解释了这一现象产生的原因,以及如何通过重启桌面系统来解决这个问题。

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ubuntu作为linux的一个优秀的发行版,拥有很华丽炫酷的桌面,我用的小Kylin更是人性化的设计了很多对中文的良好支持。

但Ubuntu比较还是比较年轻,今天就发现了一个小bug。

首先我先用鼠标拖一个框出来,当然,由于截屏的原因,鼠标被隐藏了。
这里写图片描述

有人问了,这不是很正常么,选取一批文件的时候不都用选取框么?

那么这张呢?
这里写图片描述

大家该说了,怎么如此多的框啊。。。

这个bug是你在鼠标拖动一个选取框时,按下右Ctrl和右Alt之间的那个键,是一个书页形状的键,这个键有弹出右键菜单的功能。

好的,在选取的过程中,弹出右键菜单,然后再随便点两下左键,这个选取框就留在桌面上喽。

那么,直接右键弹出右键菜单管用么?
试试看时发现,选取功能时,右键菜单是禁用的,那么不会出问题,但是ubuntu的开发团队忘了,这个键也会弹出右键菜单。

为何会出问题呢?主要是绘制一个遮罩层的时候,要监听鼠标按下和抬起的事件,但右键菜单层次较高,出现右键菜单时,鼠标抬起的事件被右键菜单给捕获了,并没有让桌面层有机会处理这个事件,结果遮罩就留在桌面上了。

另外,比较尴尬的是,无论刷新还是怎么做,这个选取框都不会消失,只有重启桌面系统,才有作用。

### Ubuntu 24.04 Bug Reports and Fixes Ubuntu 24.04, as an example version, does not exist at this moment since the latest long-term support (LTS) versions are different. However, discussing how to find bug reports and fixes for any given Ubuntu version can be beneficial. For finding bugs related specifically to a hypothetical or existing Ubuntu version like "24.04," one should visit the official Launchpad website where all bugs concerning Ubuntu packages are reported and tracked[^1]. Users may also subscribe to mailing lists dedicated to development updates which often include discussions about identified issues and their resolutions. For developers wishing to contribute towards fixing these bugs, understanding tools such as `libimobiledevice` becomes important when dealing with mobile device integration problems within Linux distributions including Ubuntu. To report new bugs or search through existing ones: - Navigate to [Launchpad](https://bugs.launchpad.net/ubuntu/) for browsing known issues. - Use filters on the page to narrow down searches based on package names, statuses, severities etc., ensuring that similar previously-reported cases do not already address your concern. When it comes to applying patches or obtaining fixed builds, staying updated via official channels ensures access to timely solutions provided either directly from Canonical—the company behind Ubuntu—or community contributors who actively maintain various components used in the distribution. ```bash sudo apt update && sudo apt upgrade ``` This command helps keep installed software up-to-date with security patches and other critical improvements applied regularly by maintainers.
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