在设置了正常显示的操作系统后，由于显示器闪烁，我将其更改为 Nvidia 346.59 驱动程序（nvidia-346-updates，我有一台 Gtx970）。
我插入了 4k 电视，但刷新率关闭了，目前设置为 30hz，我尝试使用 cvt 和 gtf 来运行 xrand，我看到值的细微差别，我创建了新模式，但无法添加它们 xrandr 输出：
Screen 0: minimum 8 x 8, current 3840 x 2160, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
DVI-I-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 1280mm x 720mm
1920x1080 60.0 + 59.9 50.0 30.0 25.0 24.0 24.0 60.0 50.0
3840x2160 30.0* 25.0 24.0
1680x1050 60.0
1600x1200 60.0
1440x900 59.9
1400x1050 60.0
1280x1024 60.0
1280x960 60.0
1280x800 59.8
1280x720 59.9 50.0
1024x768 60.0
800x600 60.3
720x576 50.0 50.1
720x480 59.9 60.1
640x480 59.9 59.9
DP-0 disconnected (normal left inverted right x axis y axis)
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)
DP-5 disconnected (normal left inverted right x axis y axis)
Unknown-0 disconnected (normal left inverted right x axis y axis)
3840x2160_60.00 (0x210) 712.8MHz
h: width 3840 start 4160 end 4576 total 5312 skew 0 clock 134.2KHz
v: height 2160 start 2163 end 2168 total 2237 clock 60.0Hz
3840x2160_59.00 (0x212) 700.5MHz
h: width 3840 start 4160 end 4576 total 5312 skew 0 clock 131.9KHz
v: height 2160 start 2163 end 2168 total 2236 clock 59.0Hz
g3840x2160_59.00 (0x213) 699.8MHz
h: width 3840 start 4152 end 4576 total 5312 skew 0 clock 131.7KHz
v: height 2160 start 2161 end 2164 total 2233 clock 59.0Hz
g3840x2160_60.00 (0x214) 712.3MHz
h: width 3840 start 4152 end 4576 total 5312 skew 0 clock 134.1KHz
v: height 2160 start 2161 end 2164 total 2235 clock 60.0Hz
当我尝试将模式添加到 HDMI-0 时，我得到以下输出：
xrandr --verbose --addmode HDMI-0 "g3840x2160_60.00"
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 140 (RANDR)
Minor opcode of failed request: 18 (RRAddOutputMode)
Serial number of failed request: 47
Current serial number in output stream: 48