突然我的屏幕分辨率改变了，我无法重置它

Question

当我更新操作系统时，分辨率突然设置为 1024 x 768，我尽一切努力将其改回 1920 x 1080，但没有任何帮助，也许有人知道我该如何解决这个问题？

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在航站楼内screenfetch

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                          ./+o+-       levon@levon-desktop\n                  yyyyy- -yyyyyy+      OS: Ubuntu 18.04 bionic\n               ://+//////-yyyyyyo      Kernel: x86_64 Linux 5.3.0-28-generic\n           .++ .:/++++++/-.+sss/`      Uptime: 47m\n         .:++o:  /++++++++/:--:/-      Packages: 2000\n        o:+o+:++.`..```.-/oo+++++/     Shell: bash 4.4.20\n       .:+o:+o/.          `+sssoo+/    Resolution: 1024x768\n  .++/+:+oo+o:`             /sssooo.   DE: GNOME \n /+++//+:`oo+o               /::--:.   WM: GNOME Shell\n \\+/+o+++`o++o               ++////.   WM Theme: Adwaita\n  .++.o+++oo+:`             /dddhhh.   GTK Theme: Ambiance [GTK2/3]\n       .+.o+oo:.          `oddhhhh+    Icon Theme: ubuntu-mono-dark\n        \\+.++o+o``-````.:ohdhhhhh+     Font: Ubuntu 11\n         `:o+++ `ohhhhhhhhyo++os:      CPU: Intel Core i7-7700 @ 8x 4.2GHz [36.0\xc2\xb0C]\n           .o:`.syhhhhhhh/.oo++o`      GPU: EFI\n               /osyyyyyyo++ooo+++/     RAM: 1793MiB / 15977MiB\n                   ````` +oo+++o\\:    \n                          `oo++.     \n

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在航站楼内xrandr

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xrandr: Failed to get size of gamma for output default\nScreen 0: minimum 1024 x 768, current 1024 x 768, maximum 1024 x 768\ndefault connected primary 1024x768+0+0 0mm x 0mm\n   1024x768      76.00* \n  1920x1200_60.00 (0x2c1) 193.250MHz -HSync +VSync\n        h: width  1920 start 2056 end 2256 total 2592 skew    0 clock  74.56KHz\n        v: height 1200 start 1203 end 1209 total 1245           clock  59.88Hz\n  1920x1080_60.00 (0x2c2) 193.250MHz -HSync +VSync\n        h: width  1920 start 2056 end 2256 total 2592 skew    0 clock  74.56KHz\n        v: height 1200 start 1203 end 1209 total 1245           clock  59.88Hz\n  1920x1080R (0x2c3) 138.500MHz +HSync -VSync\n        h: width  1920 start 1968 end 2000 total 2080 skew    0 clock  66.59KHz\n        v: height 1080 start 1083 end 1088 total 1111           clock  59.93Hz \n

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在航站楼内xrandr --addmode HDMI1 1920_1080_60.00

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xrandr: Failed to get size of gamma for output default\nxrandr: cannot find output "HDMI1"\n

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在航站楼内sudo vi /etc/default/grub

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GRUB_DEFAULT=0\nGRUB_TIMEOUT_STYLE=hidden\nGRUB_TIMEOUT=10\nGRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`\nGRUB_CMDLINE_LINUX_DEFAULT="quiet splash"\nGRUB_CMDLINE_LINUX=""\n

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在下图中我显示我使用nvidia-driver-440

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Answer 1

在 Ubuntu 20.04 上遇到这个问题，已修复：

sudo apt-get install nvidia-settings
sudo ubuntu-drivers autoinstall
sudo reboot