我在使用 xrandr 设置新分辨率和刷新率时遇到问题。我的分辨率只有 2560x1440，刷新率为 33 mhz，如果我尝试增加刷新率，则会收到以下错误：
Error of failed request: BadName (named color or font does not exist)
Major opcode of failed request: 140 (RANDR)
Minor opcode of failed request: 16 (RRCreateMode)
Serial number of failed request: 33
Current serial number in output stream: 33
我测试的一件事是在 VirtualBox 上安装 Ubuntu 21.10，然后会出现所有分辨率选项。查看屏幕截图： VirtualBox 中的 Ubuntu 并截图“关于”设置： VirtualBox 中的 Ubuntu - 关于设置
我在使用 Pop!_os 21.04 和 Ubuntu 21.10 时遇到了这个问题。我对这个问题进行了大量研究，但到目前为止，我还没有找到任何可以修复刷新率的方法。
其他信息，我正在使用显示器（4k 显示器）附带的 HDMI 电缆版本 2。
当我做研究时，我发现很多人要求响应命令“inxi -Fxxxrz”。
因此，结果如下：
denis@denis-pop-os:~$ inxi -Fxxxrz
System: Kernel: 5.13.0-7620-generic x86_64 bits: 64 compiler: gcc v: 10.2.1 Desktop: GNOME 3.38.4 tk: GTK 3.24.25
wm: gnome-shell dm: GDM3 3.38.2.1 Distro: Pop!_OS 21.04 base: Ubuntu 21.04 Hirsute
Machine: Type: Laptop System: Dell product: Vostro 3500 v: N/A serial: <filter> Chassis: type: 10 serial: <filter>
Mobo: Dell model: 0WMPGH v: A00 serial: <filter> UEFI: Dell v: 1.7.1 date: 07/05/2021
Battery: ID-1: BAT0 charge: 39.9 Wh condition: 39.9/42.0 Wh (95%) volts: 13.0/11.4 model: BYD DELL 1VX1H16 type: Li-poly
serial: <filter> status: Full
Device-1: hidpp_battery_0 model: Logitech Wireless Keyboard serial: <filter> charge: 55% (should be ignored)
rechargeable: yes status: Discharging
CPU: Info: Quad Core model: 11th Gen Intel Core i7-1165G7 bits: 64 type: MT MCP arch: Tiger Lake rev: 1 L2 cache: 12 MiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 44851
Speed: 666 MHz min/max: 400/4700 MHz Core speeds (MHz): 1: 666 2: 1178 3: 1090 4: 1279 5: 1086 6: 1974 7: 1298
8: 715
Graphics: Device-1: Intel TigerLake GT2 [Iris Xe Graphics] vendor: Dell driver: i915 v: kernel bus ID: 0000:00:02.0
chip ID: 8086:9a49 class ID: 0300
Device-2: Microdia Integrated_Webcam_HD type: USB driver: uvcvideo bus ID: 1-6:5 chip ID: 0c45:671e class ID: 0e02
Display: x11 server: X.Org 1.20.11 compositor: gnome-shell driver: loaded: modesetting unloaded: fbdev,vesa
resolution: 1: 1366x768~60Hz 2: 2560x1440~33Hz s-dpi: 96
OpenGL: renderer: Mesa Intel Xe Graphics (TGL GT2) v: 4.6 Mesa 21.2.2 direct render: Yes
Audio: Device-1: Intel Tiger Lake-LP Smart Sound Audio vendor: Dell driver: sof-audio-pci-intel-tgl bus ID: 0000:00:1f.3
chip ID: 8086:a0c8 class ID: 0401
Sound Server: ALSA v: k5.13.0-7620-generic
Network: Device-1: Intel Wi-Fi 6 AX201 driver: iwlwifi v: kernel port: 4000 bus ID: 0000:00:14.3 chip ID: 8086:a0f0
class ID: 0280
IF: wlp0s20f3 state: up mac: <filter>
Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: Dell driver: r8169 v: kernel port: 3000
bus ID: 0000:01:00.0 chip ID: 10ec:8168 class ID: 0200
IF: enp1s0 state: down mac: <filter>
IF-ID-1: docker0 state: down mac: <filter>
Bluetooth: Device-1: Intel Bluetooth 9460/9560 Jefferson Peak (JfP) type: USB driver: btusb v: 0.8 bus ID: 1-10:7
chip ID: 8087:0aaa class ID: e001
Report: ID: hci0 state: down address: <filter>
RAID: Hardware-1: Intel Volume Management Device NVMe RAID Controller driver: vmd v: 0.6 port: 4000 bus ID: 0000:00:0e.0
chip ID: 8086.9a0b rev: N/A
Drives: Local Storage: total: 238.47 GiB used: 900.01 GiB (377.4%)
ID-1: /dev/nvme0n1 vendor: A-Data model: IM2P33F3A NVMe ADATA 256GB size: 238.47 GiB speed: 31.6 Gb/s lanes: 4
rotation: SSD serial: <filter> rev: 92103061 scheme: GPT
Partition: ID-1: / size: 172.3 GiB used: 121.39 GiB (70.5%) fs: ext4 dev: /dev/nvme0n1p3
ID-2: /boot/efi size: 497 MiB used: 356.4 MiB (71.7%) fs: vfat dev: /dev/nvme0n1p1
Swap: ID-1: swap-1 type: partition size: 4 GiB used: 0 KiB (0.0%) priority: -2 dev: /dev/dm-0 mapped: cryptswap
Sensors: System Temperatures: cpu: 60.0 C mobo: N/A
Fan Speeds (RPM): cpu: 0
Repos: Packages: 1851 apt: 1824 flatpak: 7 snap: 20
No active apt repos in: /etc/apt/sources.list
Active apt repos in: /etc/apt/sources.list.d/brave-browser-release.list
1: deb [arch=amd64] https://brave-browser-apt-release.s3.brave.com/ stable main
Active apt repos in: /etc/apt/sources.list.d/docker.list
1: deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu hirsute stable
Active apt repos in: /etc/apt/sources.list.d/google-chrome.list
1: deb [arch=amd64] https://dl.google.com/linux/chrome/deb/ stable main
Active apt repos in: /etc/apt/sources.list.d/system76-ubuntu-pop-hirsute.list
1: deb http://ppa.launchpad.net/system76/pop/ubuntu/ hirsute main
2: deb-src http://ppa.launchpad.net/system76/pop/ubuntu/ hirsute main
Active apt repos in: /etc/apt/sources.list.d/pop-os-apps.sources
1: deb http://apt.pop-os.org/proprietary hirsute main
Active apt repos in: /etc/apt/sources.list.d/system.sources
1: deb deb-src http://us.archive.ubuntu.com/ubuntu/ hirsute hirsute-security hirsute-updates hirsute-backports main restricted universe multiverse
2: deb deb-src X-Repolib-Default-Mirror: http://us.archive.ubuntu.com/ubuntu/ hirsute hirsute-security hirsute-updates hirsute-backports main restricted universe multiverse
Info: Processes: 364 Uptime: 1h 40m wakeups: 16 Memory: 11.43 GiB used: 5.29 GiB (46.3%) Init: systemd v: 247 runlevel: 5
Compilers: gcc: 10.3.0 alt: 10 Shell: Bash v: 5.1.4 running in: gnome-terminal inxi: 3.3.01
xrandr命令的结果：
denis@denis-pop-os:~/Documents$ xrandr
Screen 0: minimum 320 x 200, current 3926 x 1440, maximum 16384 x 16384
eDP-1 connected 1366x768+0+439 (normal left inverted right x axis y axis) 344mm x 193mm
1366x768 60.00*+ 48.01
1360x768 59.80 59.96
1280x720 60.00 59.99 59.86 59.74
1024x768 60.04 60.00
960x720 60.00
928x696 60.05
896x672 60.01
1024x576 59.95 59.96 59.90 59.82
960x600 59.93 60.00
960x540 59.96 59.99 59.63 59.82
800x600 60.00 60.32 56.25
840x525 60.01 59.88
864x486 59.92 59.57
800x512 60.17
700x525 59.98
800x450 59.95 59.82
640x512 60.02
720x450 59.89
700x450 59.96 59.88
640x480 60.00 59.94
720x405 59.51 58.99
684x384 59.88 59.85
680x384 59.80 59.96
640x400 59.88 59.98
576x432 60.06
640x360 59.86 59.83 59.84 59.32
512x384 60.00
512x288 60.00 59.92
480x270 59.63 59.82
400x300 60.32 56.34
432x243 59.92 59.57
320x240 60.05
360x202 59.51 59.13
320x180 59.84 59.32
HDMI-1 connected primary 2560x1440+1366+0 (normal left inverted right x axis y axis) 597mm x 336mm
1920x1080 60.00 50.00 59.94
1680x1050 59.88
1280x1024 75.02 60.02
1440x900 59.90
1280x960 60.00
1280x720 60.00 50.00 59.94
1024x768 75.03 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
720x576 50.00
720x480 60.00 59.94
640x480 75.00 72.81 66.67 60.00 59.94
720x400 70.08
2560x1440_30.00 29.94
3928x1440_60.00 59.95
2560x1440_60.00 59.96
2560x1440_33.00 32.95*
2560x1440_41.00 40.97
2560x1440_55.00 54.93
2560x1440 54.93
2560x1440_54.97 54.97
3840x2160_30.00 30.00
4096x2160_60 60.00
3840x2160x60.00 60.00
如您所见，我尝试了许多尺寸和刷新率，但成功的唯一配置是 2560x1440_30.00 和 2560x1440_33.00。
在 Ubuntu 上我使用 X11。此屏幕截图是关于设置的： Ubuntu 关于设置
下面我尝试使用 xrandr 添加新的分辨率：
denis@denis-Vostro-3500:~$ cvt 2560 1440 60
# 2560x1440 59.96 Hz (CVT 3.69M9) hsync: 89.52 kHz; pclk: 312.25 MHz
Modeline "2560x1440_60.00" 312.25 2560 2752 3024 3488 1440 1443 1448 1493 -hsync +vsync
denis@denis-Vostro-3500:~$ xrandr --newmode "2560x1440" 312.25 2560 2752 3024 3488 1440 1443 1448 1493 -hsync +vsync
denis@denis-Vostro-3500:~$ xrandr --addmode HDMI-1 2560x1440
denis@denis-Vostro-3500:~$ xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
eDP-1 connected (normal left inverted right x axis y axis)
1366x768 60.00 + 48.01
1360x768 59.80 59.96
1280x720 60.00 59.99 59.86 59.74
1024x768 60.04 60.00
960x720 60.00
928x696 60.05
896x672 60.01
1024x576 59.95 59.96 59.90 59.82
960x600 59.93 60.00
960x540 59.96 59.99 59.63 59.82
800x600 60.00 60.32 56.25
840x525 60.01 59.88
864x486 59.92 59.57
800x512 60.17
700x525 59.98
800x450 59.95 59.82
640x512 60.02
720x450 59.89
700x450 59.96 59.88
640x480 60.00 59.94
720x405 59.51 58.99
684x384 59.88 59.85
680x384 59.80 59.96
640x400 59.88 59.98
576x432 60.06
640x360 59.86 59.83 59.84 59.32
512x384 60.00
512x288 60.00 59.92
480x270 59.63 59.82
400x300 60.32 56.34
432x243 59.92 59.57
320x240 60.05
360x202 59.51 59.13
320x180 59.84 59.32
HDMI-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 597mm x 336mm
1920x1080 60.00* 50.00 59.94
1680x1050 59.88
1280x1024 75.02 60.02
1440x900 59.90
1280x960 60.00
1280x720 60.00 50.00 59.94
1024x768 75.03 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
720x576 50.00
720x480 60.00 59.94
640x480 75.00 72.81 66.67 60.00 59.94
720x400 70.08
2560x1440 59.96
2560x1440_60.00 (0x7dc) 312.250MHz -HSync +VSync
h: width 2560 start 2752 end 3024 total 3488 skew 0 clock 89.52KHz
v: height 1440 start 1443 end 1448 total 1493 clock 59.96Hz
denis@denis-Vostro-3500:~$ xrandr --output HDMI-1 --mode 2560x1440 --rate 60
xrandr: Configure crtc 0 failed
denis@denis-Vostro-3500:~$ xrandr --output HDMI-1 --mode 2560x1440 --rate 59.96
xrandr: Configure crtc 0 failed
答案1
Pop_OS 不受 Canonical 支持，您应该咨询该系统的开发人员。
在 Ubuntu 中，xrandr 在 Xorg 会话中工作。要切换到 Xorg：注销。单击右下角的齿轮并选择Ubuntu on Xorg。登录。检查视频输出的名称、当前视频模式和允许的刷新率：
xrand
然后切换到某种模式（以 Virtualbox 为例）：
xrandr --output Virtual1 --mode 1280x1024 --rate 75