所以我遇到了一个非常奇怪的问题。我有一台 RX 480，连接了三台显示器。一台 DVI-D、HDMI 和 DisplayPort。所有显示器都正常工作，但我想让显示器的显示高度稍微对齐，所以我弄乱了 xrandr 的 --pos 命令，显然我输入了一些“错误”的内容。我的 DisplayPort 显示器似乎因此损坏了，因为它不再显示信号。它不再以任何方式显示与计算机的连接 - 甚至在它之前工作的 bios 中也没有显示。我尝试过拔掉电源并重新插入计算机连接、删除并重新安装 AMDGPU-Pro 驱动程序、删除 monitors.xml ... 几乎所有我能想到的方法，但我再也无法让显示器工作了。DVI 和 HDMI 显示器仍然工作正常，驱动程序肯定在工作...... xrandr 和这些驱动程序会严重损坏这台显示器吗？仅从 --pos 来看，这似乎不太可能
我没有窗户所以我无法在那里测试......
dmesg 在显示端口上显示以下可能有趣但难以理解的错误。
[ 0.852451] [drm] [Conn_Detect] [DP-1] Rx Caps: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^
[ 0.883877] [drm] [Conn_LKTN] [DP-1] HBR3x4 fail VS=0, PE=0^
[ 0.963847] [drm] [Conn_LKTN] [DP-1] HBR3x4 fail VS=0, PE=0^
[ 1.091954] [drm] [Conn_LKTN] [DP-1] HBR3x4 fail VS=0, PE=0^
[ 1.271866] [drm] [Conn_LKTN] [DP-1] HBR3x4 fail VS=0, PE=0^
[ 1.504231] [drm] [Conn_LKTN] [DP-1] HBR2x4 fail VS=0, PE=0^
[ 1.583914] [drm] [Conn_LKTN] [DP-1] HBR2x4 fail VS=0, PE=0^
[ 1.711894] [drm] [Conn_LKTN] [DP-1] HBR2x4 fail VS=0, PE=0^
[ 1.891906] [drm] [Conn_LKTN] [DP-1] HBR2x4 fail VS=0, PE=0^
[ 2.124297] [drm] [Conn_LKTN] [DP-1] HBRx4 fail VS=0, PE=0^
[ 2.203928] [drm] [Conn_LKTN] [DP-1] HBRx4 fail VS=0, PE=0^
[ 2.331981] [drm] [Conn_LKTN] [DP-1] HBRx4 fail VS=0, PE=0^
[ 2.511988] [drm] [Conn_LKTN] [DP-1] HBRx4 fail VS=0, PE=0^
[ 2.748337] [drm] [Conn_LKTN] [DP-1] RBRx4 fail VS=0, PE=0^
[ 2.831967] [drm] [Conn_LKTN] [DP-1] RBRx4 fail VS=0, PE=0^
[ 2.963976] [drm] [Conn_LKTN] [DP-1] RBRx4 fail VS=0, PE=0^
[ 3.147979] [drm] [Conn_LKTN] [DP-1] RBRx4 fail VS=0, PE=0^
[ 3.380091] [drm] [Conn_LKTN] [DP-1] HBR3x2 fail VS=0, PE=0^
[ 3.459581] [drm] [Conn_LKTN] [DP-1] HBR3x2 fail VS=0, PE=0^
[ 3.587580] [drm] [Conn_LKTN] [DP-1] HBR3x2 fail VS=0, PE=0^
[ 3.767607] [drm] [Conn_LKTN] [DP-1] HBR3x2 fail VS=0, PE=0^
[ 3.999990] [drm] [Conn_LKTN] [DP-1] HBR2x2 fail VS=0, PE=0^
[ 4.079624] [drm] [Conn_LKTN] [DP-1] HBR2x2 fail VS=0, PE=0^
[ 4.207625] [drm] [Conn_LKTN] [DP-1] HBR2x2 fail VS=0, PE=0^
[ 4.387637] [drm] [Conn_LKTN] [DP-1] HBR2x2 fail VS=0, PE=0^
[ 4.620177] [drm] [Conn_LKTN] [DP-1] HBRx2 fail VS=0, PE=0^
[ 4.699669] [drm] [Conn_LKTN] [DP-1] HBRx2 fail VS=0, PE=0^
[ 4.827668] [drm] [Conn_LKTN] [DP-1] HBRx2 fail VS=0, PE=0^
[ 5.007680] [drm] [Conn_LKTN] [DP-1] HBRx2 fail VS=0, PE=0^
[ 5.244001] [drm] [Conn_LKTN] [DP-1] RBRx2 fail VS=0, PE=0^
[ 5.327699] [drm] [Conn_LKTN] [DP-1] RBRx2 fail VS=0, PE=0^
[ 5.459721] [drm] [Conn_LKTN] [DP-1] RBRx2 fail VS=0, PE=0^
[ 5.643721] [drm] [Conn_LKTN] [DP-1] RBRx2 fail VS=0, PE=0^
[ 5.875848] [drm] [Conn_LKTN] [DP-1] HBR3x1 fail VS=0, PE=0^
[ 5.955487] [drm] [Conn_LKTN] [DP-1] HBR3x1 fail VS=0, PE=0^
[ 6.083499] [drm] [Conn_LKTN] [DP-1] HBR3x1 fail VS=0, PE=0^
[ 6.263504] [drm] [Conn_LKTN] [DP-1] HBR3x1 fail VS=0, PE=0^
[ 6.495900] [drm] [Conn_LKTN] [DP-1] HBR2x1 fail VS=0, PE=0^
[ 6.575537] [drm] [Conn_LKTN] [DP-1] HBR2x1 fail VS=0, PE=0^
[ 6.703539] [drm] [Conn_LKTN] [DP-1] HBR2x1 fail VS=0, PE=0^
[ 6.883554] [drm] [Conn_LKTN] [DP-1] HBR2x1 fail VS=0, PE=0^
[ 7.115867] [drm] [Conn_LKTN] [DP-1] HBRx1 fail VS=0, PE=0^
[ 7.195581] [drm] [Conn_LKTN] [DP-1] HBRx1 fail VS=0, PE=0^
[ 7.323585] [drm] [Conn_LKTN] [DP-1] HBRx1 fail VS=0, PE=0^
[ 7.503591] [drm] [Conn_LKTN] [DP-1] HBRx1 fail VS=0, PE=0^
[ 7.740129] [drm] [Conn_LKTN] [DP-1] RBRx1 fail VS=0, PE=0^
[ 7.823612] [drm] [Conn_LKTN] [DP-1] RBRx1 fail VS=0, PE=0^
[ 7.955633] [drm] [Conn_LKTN] [DP-1] RBRx1 fail VS=0, PE=0^
[ 8.139657] [drm] [Conn_LKTN] [DP-1] RBRx1 fail VS=0, PE=0^
答案1
解决了。我尝试从 USB 密钥启动，但它没有支持 RX 480 的驱动程序。;( 这是一台新的 1440p BenQ GW2765。我通过 HDMI 将它插入计算机来修复它 - 然后它就正常工作了。所以我将它重新插入 DP，它继续工作。
我猜这款显示器存在一些错误，需要小心处理。好吧，对于 27 英寸 1440p 来说，它很便宜，我想我知道为什么哈哈。