我在 MSI GS65 上运行 Ubunutu 18.04。所有东西在 MSI 上运行都很完美。我在安装显卡时遇到了问题，但最终安装了“nvidia-driver-440”，运行得很好，而 hdmi 有时会挂起，我关闭屏幕，然后打开并关闭笔记本电脑，然后它就可以正常工作了。
但是现在，一旦我将 nvidia-prime 切换到 intel hd，然后再切换回 RTX2060，那么我的 HDMI 就无法再连接了，尽管我尝试了所有的技巧。
以下是可能有帮助的日志输出：
韓國
System: Host: m Kernel: 5.3.0-40-generic x86_64 bits: 64 gcc: 7.4.0
Desktop: Gnome 3.28.4 (Gtk 3.22.30-1ubuntu4)
Distro: Ubuntu 18.04.4 LTS
Machine: Device: laptop System: Micro-Star product: GS65 Stealth 9SE v: REV:1.0 serial: N/A
Mobo: Micro-Star model: MS-16Q4 v: REV:1.0 serial: N/A
UEFI: American Megatrends v: E16Q4IMS.110 date: 04/02/2019
CPU: 6 core Intel Core i7-9750H (-MT-MCP-)
arch: Skylake rev.10 cache: 12288 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 31199
clock speeds: max: 4500 MHz 1: 3659 MHz 2: 3707 MHz 3: 3698 MHz
4: 3735 MHz 5: 3735 MHz 6: 3729 MHz 7: 3716 MHz 8: 3715 MHz
9: 3723 MHz 10: 3742 MHz 11: 3738 MHz 12: 3718 MHz
Graphics: Card-1: Intel Device 3e9b bus-ID: 00:02.0
Card-2: NVIDIA Device 1f11 bus-ID: 01:00.0
Display Server: x11 (X.Org 1.20.5 )
drivers: modesetting,nvidia (unloaded: fbdev,vesa,nouveau)
Resolution: [email protected]
OpenGL: renderer: GeForce RTX 2060/PCIe/SSE2
version: 4.6.0 NVIDIA 440.59 Direct Render: Yes
lspci -nnk | egrep -A3 -i "3D|VGA"
00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:3e9b]
Subsystem: Micro-Star International Co., Ltd. [MSI] Device [1462:1274]
Kernel driver in use: i915
Kernel modules: i915
--
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation Device [10de:1f11] (rev a1)
Subsystem: Micro-Star International Co., Ltd. [MSI] Device [1462:1274]
Kernel driver in use: nvidia
Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia
--
3d:00.0 Ethernet controller [0200]: Qualcomm Atheros Killer E2500 Gigabit Ethernet Controller [1969:e0b1] (rev 10)
Subsystem: Micro-Star International Co., Ltd. [MSI] Killer E2500 Gigabit Ethernet Controller [1462:1274]
Kernel driver in use: alx
Kernel modules: alx
ls /lib/modprobe.d
aliases.conf nvidia-graphics-drivers.conf
blacklist_linux-hwe_5.3.0-28-generic.conf nvidia-kms.conf
blacklist_linux-hwe_5.3.0-40-generic.conf systemd.conf
fbdev-blacklist.conf
dpkg -l | grep -i nvidia
ii libnvidia-cfg1-440:amd64 440.59-0ubuntu0.18.04.1 amd64 NVIDIA binary OpenGL/GLX configuration library
ii libnvidia-common-440 440.59-0ubuntu0.18.04.1 all Shared files used by the NVIDIA libraries
ii libnvidia-compute-440:amd64 440.59-0ubuntu0.18.04.1 amd64 NVIDIA libcompute package
ii libnvidia-compute-440:i386 440.59-0ubuntu0.18.04.1 i386 NVIDIA libcompute package
ii libnvidia-decode-440:amd64 440.59-0ubuntu0.18.04.1 amd64 NVIDIA Video Decoding runtime libraries
ii libnvidia-decode-440:i386 440.59-0ubuntu0.18.04.1 i386 NVIDIA Video Decoding runtime libraries
ii libnvidia-encode-440:amd64 440.59-0ubuntu0.18.04.1 amd64 NVENC Video Encoding runtime library
ii libnvidia-encode-440:i386 440.59-0ubuntu0.18.04.1 i386 NVENC Video Encoding runtime library
ii libnvidia-fbc1-440:amd64 440.59-0ubuntu0.18.04.1 amd64 NVIDIA OpenGL-based Framebuffer Capture runtime library
ii libnvidia-fbc1-440:i386 440.59-0ubuntu0.18.04.1 i386 NVIDIA OpenGL-based Framebuffer Capture runtime library
ii libnvidia-gl-440:amd64 440.59-0ubuntu0.18.04.1 amd64 NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii libnvidia-gl-440:i386 440.59-0ubuntu0.18.04.1 i386 NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii libnvidia-ifr1-440:amd64 440.59-0ubuntu0.18.04.1 amd64 NVIDIA OpenGL-based Inband Frame Readback runtime library
ii libnvidia-ifr1-440:i386 440.59-0ubuntu0.18.04.1 i386 NVIDIA OpenGL-based Inband Frame Readback runtime library
ii nvidia-compute-utils-440 440.59-0ubuntu0.18.04.1 amd64 NVIDIA compute utilities
ii nvidia-dkms-440 440.59-0ubuntu0.18.04.1 amd64 NVIDIA DKMS package
ii nvidia-driver-440 440.59-0ubuntu0.18.04.1 amd64 NVIDIA driver metapackage
ii nvidia-kernel-common-440 440.59-0ubuntu0.18.04.1 amd64 Shared files used with the kernel module
ii nvidia-kernel-source-440 440.59-0ubuntu0.18.04.1 amd64 NVIDIA kernel source package
ii nvidia-prime 0.8.8.2 all Tools to enable NVIDIA's Prime
ii nvidia-settings 440.44-0ubuntu0.18.04.1 amd64 Tool for configuring the NVIDIA graphics driver
ii nvidia-utils-440 440.59-0ubuntu0.18.04.1 amd64 NVIDIA driver support binaries
ii xserver-xorg-video-nvidia-440 440.59-0ubuntu0.18.04.1 amd64 NVIDIA binary Xorg driver
mokutil --sb-state
SecureBoot disabled
xrandr --prop
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
eDP-1-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
_MUTTER_PRESENTATION_OUTPUT: 0
EDID:
00ffffffffffff004d10c51400000000
091d0104a522137807de50a3544c9926
0f505400000001010101010101010101
01010101010150d0805070381f401828
350058c2100000181434805070381f40
1828350058c210000018000000100000
000000000000000000000000000000fc
004c513135364d314a5730330a2000e4
PRIME Synchronization: 1
supported: 0, 1
scaling mode: Full aspect
supported: Full, Center, Full aspect
max bpc: 12
range: (6, 12)
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
link-status: Good
supported: Good, Bad
CONNECTOR_ID: 86
supported: 86
non-desktop: 0
range: (0, 1)
1920x1080 240.00*+ 60.00
DP-1-1 disconnected (normal left inverted right x axis y axis)
PRIME Synchronization: 1
supported: 0, 1
Content Protection: Undesired
supported: Undesired, Desired, Enabled
max bpc: 12
range: (6, 12)
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
link-status: Good
supported: Good, Bad
CONNECTOR_ID: 92
supported: 92
non-desktop: 0
range: (0, 1)
HDMI-1-1 disconnected (normal left inverted right x axis y axis)
PRIME Synchronization: 1
supported: 0, 1
Content Protection: Undesired
supported: Undesired, Desired, Enabled
max bpc: 12
range: (8, 12)
content type: No Data
supported: No Data, Graphics, Photo, Cinema, Game
Colorspace: Default
supported: Default, SMPTE_170M_YCC, BT709_YCC, XVYCC_601, XVYCC_709, SYCC_601, opYCC_601, opRGB, BT2020_CYCC, BT2020_RGB, BT2020_YCC, DCI-P3_RGB_D65, DCI-P3_RGB_Theater
aspect ratio: Automatic
supported: Automatic, 4:3, 16:9
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
link-status: Good
supported: Good, Bad
CONNECTOR_ID: 99
supported: 99
non-desktop: 0
range: (0, 1)
对此事有什么建议吗？我一直很努力地想让这个问题在 ubuntu 中保持一致，但不知何故它并没有发生，所以如果有人能在这里提供帮助，我将不胜感激。
干杯，莫