我有一台 4K 笔记本电脑屏幕连接到一台戴尔 5K 显示器。戴尔使用两个显示端口，并显示为 2 个显示器；一个分辨率高达 4K，另一个分辨率为 848x480 和 2560x2880。在外接显示器上获得 5K 的方法似乎是以 2560 分辨率运行其两个端口。但是，如果我尝试使用 xrandr 设置这些值，它会告诉我所需分辨率大于最大值。xrandr 的输出如下所示。有没有办法将最大值从 8192 提高到更大的值？
Screen 0: minimum 320 x 200, current 7680 x 2160, maximum 8192 x 8192
eDP-1 connected primary 3840x2160+3840+0 (normal left inverted right x axis y axis) 346mm x 194mm
3840x2160 60.00*+
2048x1536 60.00
1920x1440 60.00
1856x1392 60.01
1792x1344 60.01
1920x1200 59.95
1920x1080 59.93
1600x1200 60.00
1680x1050 59.95 59.88
1600x1024 60.17
1400x1050 59.98
1280x1024 60.02
1440x900 59.89
1280x960 60.00
1360x768 59.80 59.96
1152x864 60.00
1024x768 60.04 60.00
960x720 60.00
928x696 60.05
896x672 60.01
960x600 60.00
960x540 59.99
800x600 60.00 60.32 56.25
840x525 60.01 59.88
800x512 60.17
700x525 59.98
640x512 60.02
720x450 59.89
640x480 60.00 59.94
680x384 59.80 59.96
576x432 60.06
512x384 60.00
400x300 60.32 56.34
320x240 60.05
DP-1 connected 3840x2160+0+0 (normal left inverted right x axis y axis) 597mm x 336mm
3840x2160 60.00*+ 60.00
2560x1440 59.95 +
2560x2880 59.98 29.99
1920x1200 59.88
1920x1080 60.00
1600x1200 60.00
1680x1050 59.95
1280x1024 60.02
1280x800 59.81
1024x768 60.00
800x600 60.32
640x480 60.00 59.94
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-2 connected (normal left inverted right x axis y axis)
848x480 59.74 +
2560x2880 59.98 29.99
HDMI-2 disconnected (normal left inverted right x axis y axis)