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找不到外接屏幕的最佳分辨率

tag-icon • tag-icon multiple-monitors display hdmi display-resolution
找不到外接屏幕的最佳分辨率

我有一个外接 22 英寸屏幕，与我的联想笔记本电脑一起使用。在此处输入图片描述

所有可能的分辨率都无法正确呈现屏幕。（16:10）使屏幕变黑，显示器显示无信号错误消息。我的笔记本电脑通过 HDMI 电缆连接到显示器。

跑步：

xrandr --curent

给出以下输出：

Screen 0: minimum 8 x 8, current 2560 x 720, maximum 32767 x 32767
eDP1 connected 1280x720+1280+0 (normal left inverted right x axis y axis) 293mm x 165mm
   1366x768      59.97 +  48.03  
   1360x768      59.80    59.96  
   1280x720      60.00* 
   1024x768      60.00  
   1024x576      60.00  
   960x540       60.00  
   800x600       60.32    56.25  
   864x486       60.00  
   640x480       59.94  
   720x405       60.00  
   680x384       60.00  
   640x360       60.00  
HDMI1 connected primary 1280x720+0+0 (normal left inverted right x axis y axis) 473mm x 296mm
   1680x1050     59.88 +  59.95  
   1920x1080i    60.00    50.00    59.94  
   1280x1024     60.02  
   1440x900      59.90  
   1280x720      60.00*   50.00    59.94  
   1024x768      60.00  
   800x600       60.32  
   720x576       50.00  
   720x576i      50.00  
   720x480       60.00    59.94  
   720x480i      60.00    59.94  
   640x480       60.00    59.94  
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

lspci 输出：

00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4)
00:1c.2 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4)
00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4)
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
02:00.0 Network controller: Intel Corporation Wireless 7260 (rev 73)

uname -a：

Linux IdeaPad-U330p 4.4.0-72-generic #93-Ubuntu SMP Fri Mar 31 14:07:41 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

答案1

我很确定你现在可能需要也可能不需要它，但这是给其他遇到这个问题的人的。这对我有用。就像有人在评论中说的那样，我在使用 xrandr

xrandr | grep maximum &
sleep 2
gtf 2560 1440 60.0 &
sleep 2
xrandr --newmode "2560x1440_60.00" 311.83  2560 2744 3024 3488  1440 1441 1444 1490  -HSync +Vsync &
sleep 2
xrandr --addmode DP1 2560x1440_60.00 &
sleep 2
xrandr --output DP1 --mode 2560x1440_60.00 &
exit 0

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