我在使用 LibreWriter 6.1.4 时遇到了问题。每当我将鼠标悬停在工具栏上的任何按钮上时，悬停按钮的轮廓就会开始不断闪烁，直到用鼠标左键或右键单击该按钮。我已经在 OpenGL 和硬件加速开启和关闭的情况下测试了按钮，但问题仍然存在。我还尝试了不同的 GTK 主题，但问题仍然存在。
这个问题似乎与几年前发布的这个问题类似：为什么 LibreOffice 5.2 菜单在 Xubuntu 16.04 中闪烁？
我正在使用带有 KDE 和 nVidia 显卡的 Kubuntu。
任何帮助都将不胜感激。谢谢。
编辑：Inxi 输出：
System: Host: Linux-PC Kernel: 4.19.0-041900-generic x86_64 bits: 64 compiler: gcc v: 8.2.0
Desktop: KDE Plasma 5.14.5 Distro: Ubuntu 18.10 (Cosmic Cuttlefish)
Machine: Type: Desktop Mobo: MSI model: B150 GAMING M3 (MS-7978) v: 2.0 serial: <filter>
UEFI: American Megatrends v: B.50 date: 02/23/2016
CPU: Topology: Quad Core model: Intel Core i7-6700K bits: 64 type: MT MCP arch: Skylake-S rev: 3
L2 cache: 8192 KiB
flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 64128
Speed: 4164 MHz min/max: 800/4200 MHz Core speeds (MHz): 1: 4139 2: 4002 3: 4075 4: 4005 5: 4112
6: 4134 7: 4074 8: 4062
Graphics: Device-1: NVIDIA GP102 [GeForce GTX 1080 Ti] driver: nvidia v: 415.27 bus ID: 01:00.0
Display: x11 server: X.Org 1.20.1 driver: nvidia resolution: 1920x1080~60Hz
OpenGL: renderer: GeForce GTX 1080 Ti/PCIe/SSE2 v: 4.6.0 NVIDIA 415.27 direct render: Yes
Audio: Device-1: Intel 100 Series/C230 Series Family HD Audio driver: snd_hda_intel v: kernel
bus ID: 00:1f.3
Device-2: NVIDIA GP102 HDMI Audio driver: snd_hda_intel v: kernel bus ID: 01:00.1
Device-3: Logitech type: USB driver: snd-usb-audio,uvcvideo bus ID: 1-5:8
Sound Server: ALSA v: k4.19.0-041900-generic
Network: Device-1: D-Link System DGE-528T Gigabit Ethernet Adapter driver: r8169 v: kernel port: d000
bus ID: 04:01.0
IF: enp4s1 state: down mac: <filter>
Device-2: Qualcomm Atheros Killer E2400 Gigabit Ethernet driver: alx v: kernel port: c000
bus ID: 05:00.0
IF: enp5s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
IF-ID-1: vpn0 state: down mac: N/A
Drives: Local Storage: total: 4.19 TiB used: 1.39 TiB (33.1%)
ID-1: /dev/sda vendor: Western Digital model: WD40EFRX-68N32N0 size: 3.64 TiB temp: 23 C
ID-2: /dev/sdb vendor: Kingston model: SV300S37A240G size: 223.57 GiB temp: 22 C
ID-3: /dev/sdc vendor: SanDisk model: SDSSDX120GG25 size: 111.79 GiB temp: 22 C
ID-4: /dev/sdd vendor: Western Digital model: WD2500AAJS-65B4A0 size: 232.89 GiB temp: 25 C
Partition: ID-1: / size: 42.52 GiB used: 19.07 GiB (44.8%) fs: ext4 dev: /dev/sdb5
ID-2: /home size: 107.49 GiB used: 68.67 GiB (63.9%) fs: ext4 dev: /dev/sdb6
ID-3: swap-1 size: 15.83 GiB used: 195.9 MiB (1.2%) fs: swap dev: /dev/sdb3
Sensors: System Temperatures: cpu: 29.0 C mobo: N/A gpu: nvidia temp: 45 C
Fan Speeds (RPM): N/A gpu: nvidia fan: 0%
Info: Processes: 341 Uptime: 4d 10h 47m Memory: 15.61 GiB used: 7.12 GiB (45.6%) Init: systemd runlevel: 5
Compilers: gcc: 8.2.0 Shell: bash v: 4.4.19 inxi: 3.0.24
答案1
我在 Reddit 上找到了一篇帖子，其中提到这是 gtk-3 光标主题大小问题。按照这个帖子为我解决了这个问题。
该帖子由以下命令组成：
grep '^[设置' ~/.config/gtk-3.0/settings.ini
如果有效：
echo“gtk-cursor-theme-size = 16”>>~/.config/gtk-3.0/settings.ini或者直接手动添加这一行：
六〜/.config/gtk-3.0/settings.ini
答案2
我尝试了可接受的解决方案，但没有成功。原来，我的系统输入法设置为xim。取消设置并允许其为默认值，ibus最终解决了问题。