![GPU 停止向显示器发送信号](https://linux22.com/image/894707/GPU%20%E5%81%9C%E6%AD%A2%E5%90%91%E6%98%BE%E7%A4%BA%E5%99%A8%E5%8F%91%E9%80%81%E4%BF%A1%E5%8F%B7.png)
最近(过去一周),我的两个显示器在一天中会随机变黑,并显示一条消息,表示没有信号。系统的其他部分都很好:如果我正在播放 YouTube 视频,声音会继续通过。如果我正在进行计算,该过程将在完成时完成并关闭,只是我实际上看不到任何东西。
我试过拔掉 HDMI 电缆然后重新插入,但不起作用。我试过切换 TTY,希望这样能恢复 GUI 或至少通过这种方式检查日志,但同样不起作用。我不确定是不是我的 Nvidia 970 快要坏了(不太可能,但没关系)或者是我上周安装的某个软件包出了问题。
这是一个已知问题吗?我应该检查哪些日志,在启动过程覆盖所有日志之前我应该如何找到它们以找出导致此问题的原因?系统规格如下:
Dell U2715 显示器 Nvidia 970 GTX nvidia-375.66 驱动程序
$ xrandr
Screen 0: minimum 8 x 8, current 5120 x 1440, 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 disconnected (normal left inverted right x axis y axis)
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 connected 2560x1440+0+0 (normal left inverted right x axis y axis) 597mm x 336mm
2560x1440 59.95*+
2048x1152 60.00
1920x1200 59.88
1920x1080 60.00 59.94 50.00 29.97 25.00 23.97 60.05 60.00 50.04
1680x1050 59.95
1600x1200 60.00
1280x1024 75.02 60.02
1280x720 60.00 59.94 50.00
1200x960 59.90
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 59.94
640x480 75.00 59.94 59.93
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 connected primary 2560x1440+2560+0 (normal left inverted right x axis y axis) 597mm x 336mm
2560x1440 59.95*+
2048x1152 60.00
1920x1200 59.88
1920x1080 60.00 59.94 50.00 29.97 25.00 23.97 60.05 60.00 50.04
1680x1050 59.95
1600x1200 60.00
1280x1024 75.02 60.02
1280x720 60.00 59.94 50.00
1200x960 59.90
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 59.94
640x480 75.00 59.94 59.93
DP-5 disconnected (normal left inverted right x axis y axis)
答案1
原来这是我的显卡坏了。更换显卡解决了问题