我刚刚在电脑上安装了 Ubuntu 18.04.01 LTS，每次我按下数字锁定和大写锁定时，系统都会冻结一点，需要几秒钟才能恢复工作。当我不小心按下数字锁定时，我不得不再次按下，然后再次冻结，这变得非常令人沮丧。
我的 lspci 输出：
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b5)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 05)
00:1f.2 IDE interface: Intel Corporation 6 Series/C200 Series Chipset Family 4 port SATA IDE Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
00:1f.5 IDE interface: Intel Corporation 6 Series/C200 Series Chipset Family 2 port SATA IDE Controller (rev 05)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 05)
07:00.0 Network controller: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
答案1
答案在这里找到： Fn 媒体键在 ubuntu gnome 17.04 上运行缓慢/延迟
由于某种原因，当我使用 Fn 键或尝试使用 2 个键盘时，我的 Gnome 会冻结。我的一个朋友告诉我，当切换到启用了 Scroll Lock 的键盘布局时，就会发生这种情况，因此我在 X11 键盘布局文件中为我的语言禁用了它，问题就解决了。
我遵循的步骤如下：
打开我的语言的键盘布局文件，就我而言：sudo nano /usr/share/X11/xkb/symbols/br
评论了以下行：
modifier_map Mod3 { Scroll_Lock };已退出并重新登录。
这些步骤专门针对巴西葡萄牙语 ABNT2 布局，可能不适用于其他布局，但它可以帮助您找到类似的解决方案。