![无法在超宽游戏显示器上设置 100hz 刷新率](https://linux22.com/image/1186529/%E6%97%A0%E6%B3%95%E5%9C%A8%E8%B6%85%E5%AE%BD%E6%B8%B8%E6%88%8F%E6%98%BE%E7%A4%BA%E5%99%A8%E4%B8%8A%E8%AE%BE%E7%BD%AE%20100hz%20%E5%88%B7%E6%96%B0%E7%8E%87.png)
我正在尝试在 Ubuntu 20.04 上将显示器(小米曲面游戏显示器,原始分辨率为 3440 x 1440)的刷新率设置为 100 Hz。如图所示这里,该选项出现在设置窗口的下拉菜单中。但是,当我尝试选择 100 Hz 并按“应用”时,显示器甚至没有闪烁,最后一个活动选项(60 Hz)被选中,并带有标准弹出窗口以恢复或保留当前设置。我使用 HDMI 2.0 电缆(电缆已在另一台笔记本电脑上测试,并且它确实支持 100 hz 的原始分辨率)将显示器连接到 HP Elitebook 850(i7 1185g7,带有 Iris Xe 显卡和 2.0b HDMI 端口)。我没有使用任何集线器。
我怎样才能以 100 hz 的频率运行显示器?
编辑:
输出xrandr -q
:
Screen 0: minimum 320 x 200, current 3440 x 1440, maximum 16384 x 16384
eDP-1 connected (normal left inverted right x axis y axis)
1920x1080 59.93 + 39.98
1680x1050 59.95 59.88
1600x1024 60.17
1400x1050 59.98
1600x900 59.99 59.94 59.95 59.82
1280x1024 60.02
1440x900 59.89
1400x900 59.96 59.88
1280x960 60.00
1440x810 60.00 59.97
1368x768 59.88 59.85
1360x768 59.80 59.96
1280x800 59.99 59.97 59.81 59.91
1152x864 60.00
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 3440x1440+0+0 (normal left inverted right x axis y axis) 797mm x 334mm
3440x1440 50.00 + 99.99 60.00*
2560x1440 59.95
1720x1440 60.00
1920x1080 120.00 119.88 60.00 60.00 50.00 59.94
1920x1080i 60.00 50.00 59.94
1680x1050 59.88
1600x900 60.00
1280x1024 75.02 60.02
1440x900 59.90
1280x960 60.00
1152x864 75.00
1280x720 60.00 50.00 59.94
1024x768 75.03 70.07 60.00
800x600 72.19 75.00 60.32
720x576 50.00
720x480 60.00 59.94
640x480 75.00 72.81 60.00 59.94
720x400 70.08
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 disconnected (normal left inverted right x axis y axis)
答案1
当我购买了一个通过雷电接口 (USB-C) 连接的外部集线器时,问题就消失了,该集线器内部支持 DP 1.4。我可以设置 100Hz,差异非常明显。看来 HP 可能在 HDMI2.0b 支持方面撒了谎,并且在中端笔记本电脑中安装了便宜的 HDMI 适配器。
请注意 - 没有任何变化(显示器、HDMI 电缆等)。
感谢大家的帮助!