通过以下方式尝试前沿驱动程序图形驱动程序 PPA
双 GPU 笔记本电脑，Ubuntu Budgie 在nvidia-driver-418记录大约 15 秒后会冻结屏幕，鼠标除外，因此我尝试了 nvidia-410 和 415，但它有时只会加载。
nvidia-settings抛出错误ERROR: Unable to load info from any available system
但加载时屏幕部分
Linux skyhawk 4.18.0-17-generic #18-Ubuntu SMP Wed Mar 13 14:34:40 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
nvidia-smi
Mon Apr 15 22:46:46 2019
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 415.27 Driver Version: 415.27 CUDA Version: 10.0 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce GTX 860M Off | 00000000:01:00.0 Off | N/A |
| N/A 55C P8 N/A / N/A | 2MiB / 2004MiB | 0% Default |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| No running processes found |
+-----------------------------------------------------------------------------+
dmesg
7.073081] PKCS#7 signature not signed with a trusted key
[ 7.073095] nvidia: loading out-of-tree module taints kernel.
[ 7.073102] nvidia: module license 'NVIDIA' taints kernel.
[ 7.073102] Disabling lock debugging due to kernel taint
[ 7.077684] nvidia: module verification failed: signature and/or required key missing - tainting kernel
[ 7.082249] iwlwifi 0000:08:00.0: base HW address: e8:2a:ea:2a:79:b6
[ 7.085970] intel_rapl: Found RAPL domain package
[ 7.085972] intel_rapl: Found RAPL domain core
[ 7.085972] intel_rapl: Found RAPL domain uncore
[ 7.085973] intel_rapl: Found RAPL domain dram
[ 7.085975] intel_rapl: RAPL package 0 domain package locked by BIOS
[ 7.086116] nvidia-nvlink: Nvlink Core is being initialized, major device number 238
[ 7.086397] nvidia 0000:01:00.0: enabling device (0006 -> 0007)
[ 7.086451] ACPI BIOS Error (bug): Could not resolve [\_SB.PCI0.PEG0._PRT.AR02], AE_NOT_FOUND (20180531/psargs-330)
[ 7.086459] No Local Variables are initialized for Method [_PRT]
[ 7.086460] No Arguments are initialized for method [_PRT]
[ 7.086462] ACPI Error: Method parse/execution failed \_SB.PCI0.PEG0._PRT, AE_NOT_FOUND (20180531/psparse-516)
[ 7.186041] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 415.27 Thu Dec 20 17:25:03 CST 2018 (using threaded interrupts)
[ 7.191194] PKCS#7 signature not signed with a trusted key
[ 7.214782] PKCS#7 signature not signed with a trusted key
[ 7.215491] PKCS#7 signature not signed with a trusted key
[ 7.215754] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 415.27 Thu Dec 20 17:06:08 CST 2018
[ 7.221693] PKCS#7 signature not signed with a trusted key
[ 7.222538] PKCS#7 signature not signed with a trusted key
[ 7.223063] [drm] [nvidia-drm] [GPU ID 0x00000100] Loading driver
[ 7.248789] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20180531/nsarguments-66)
[ 7.304472] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[ 7.340248] Adding 16670716k swap on /dev/sda3. Priority:-2 extents:1 across:16670716k SSFS
[ 7.648887] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 7.648888] [drm] No driver support for vblank timestamp query.
[ 7.648890] [drm] Initialized nvidia-drm 0.0.0 20160202 for 0000:01:00.0 on minor 1
[ 7.663188] PKCS#7 signature not signed with a trusted key
[ 7.666364] nvidia-uvm: Loaded the UVM driver in 8 mode, major device number 236
[ 8.557995] audit: type=1400 audit(1555386280.076:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/bin/ubuntu-core-launcher" pid=965 comm="apparmor_parser"
[ 8.558489] audit: type=1400 audit(1555386280.076:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="libreoffice-senddoc" pid=967 comm="apparmor_parser"
[ 8.558800] audit: type=1400 audit(1555386280.076:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="libreoffice-oopslash" pid=966 comm="apparmor_parser"
[ 8.559344] audit: type=1400 audit(1555386280.076:5): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/bin/man" pid=964 comm="apparmor_parser"
[ 8.559347] audit: type=1400 audit(1555386280.076:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="man_filter" pid=964 comm="apparmor_parser"
[ 8.559348] audit: type=1400 audit(1555386280.076:7): apparmor="STATUS" operation="profile_load" profile="unconfined" name="man_groff" pid=964 comm="apparmor_parser"
[ 8.559949] audit: type=1400 audit(1555386280.076:8): apparmor="STATUS" operation="profile_load" profile="unconfined" name="libreoffice-xpdfimport" pid=969 comm="apparmor_parser"
[ 8.562885] audit: type=1400 audit(1555386280.080:9): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/sbin/dhclient" pid=961 comm="apparmor_parser"
[ 8.562889] audit: type=1400 audit(1555386280.080:10): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=961 comm="apparmor_parser"
[ 8.562891] audit: type=1400 audit(1555386280.080:11): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-helper" pid=961 comm="apparmor_parser"
[ 8.646060] PKCS#7 signature not signed with a trusted key
[ 8.646346] bbswitch: version 0.8
[ 8.646353] bbswitch: Found integrated VGA device 0000:00:02.0: \_SB_.PCI0.GFX0
[ 8.646360] bbswitch: Found discrete VGA device 0000:01:00.0: \_SB_.PCI0.PEG0.PEGP
[ 8.646491] bbswitch: detected an Optimus _DSM function
[ 8.646502] bbswitch: Succesfully loaded. Discrete card 0000:01:00.0 is on
[ 8.768143] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 8.768145] Bluetooth: BNEP filters: protocol multicast
[ 8.768148] Bluetooth: BNEP socket layer initialized
[ 8.857865] input: lircd-uinput as /devices/virtual/input/input20
[ 9.205259] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 9.249926] r8169 0000:09:00.0 eth0: link down
[ 9.250014] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 9.254137] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 9.491467] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 9.504092] nvidia-uvm: Unloaded the UVM driver in 8 mode
[ 9.532167] [drm] [nvidia-drm] [GPU ID 0x00000100] Unloading driver
[ 9.576143] nvidia-modeset: Unloading
[ 9.612318] nvidia-nvlink: Unregistered the Nvlink Core, major device number 238
[ 9.622231] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 9.729809] bbswitch: disabling discrete graphics
[ 9.730246] ACPI BIOS Error (bug): Could not resolve [\_SB.PCI0.PEG0._PRT.AR02], AE_NOT_FOUND (20180531/psargs-330)
[ 9.730258] No Local Variables are initialized for Method [_PRT]
[ 9.730259] No Arguments are initialized for method [_PRT]
[ 9.730261] ACPI Error: Method parse/execution failed \_SB.PCI0.PEG0._PRT, AE_NOT_FOUND (20180531/psparse-516)
[ 16.142019] PKCS#7 signature not signed with a trusted key
[ 16.150020] vboxdrv: Found 8 processor cores
[ 16.168352] vboxdrv: TSC mode is Invariant, tentative frequency 2394440871 Hz
[ 16.168353] vboxdrv: Successfully loaded version 5.2.18_Ubuntu (interface 0x00290001)
[ 16.174679] PKCS#7 signature not signed with a trusted key
[ 16.175038] VBoxNetFlt: Successfully started.
[ 16.181035] PKCS#7 signature not signed with a trusted key
[ 16.181313] VBoxNetAdp: Successfully started.
[ 16.188978] PKCS#7 signature not signed with a trusted key
[ 16.189288] VBoxPciLinuxInit
[ 16.193576] vboxpci: IOMMU not found (not registered)
[ 16.306057] wlan0: authenticate with 10:6f:3f:f8:d0:e4
[ 16.310742] wlan0: send auth to 10:6f:3f:f8:d0:e4 (try 1/3)
[ 16.313234] wlan0: authenticated
[ 16.319871] wlan0: associate with 10:6f:3f:f8:d0:e4 (try 1/3)
[ 16.324916] wlan0: RX AssocResp from 10:6f:3f:f8:d0:e4 (capab=0x411 status=0 aid=1)
[ 16.325876] wlan0: associated
[ 16.355404] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 20.050713] rfkill: input handler disabled
[ 20.300757] Bluetooth: RFCOMM TTY layer initialized
[ 20.300762] Bluetooth: RFCOMM socket layer initialized
[ 20.300766] Bluetooth: RFCOMM ver 1.11
[ 27.275341] PKCS#7 signature not signed with a trusted key
[ 27.292838] nvidia-nvlink: Nvlink Core is being initialized, major device number 238
[ 27.385783] PKCS#7 signature not signed with a trusted key
[ 27.794598] ACPI BIOS Error (bug): Could not resolve [\_SB.PCI0.PEG0._PRT.AR02], AE_NOT_FOUND (20180531/psargs-330)
[ 27.794606] No Local Variables are initialized for Method [_PRT]
[ 27.794607] No Arguments are initialized for method [_PRT]
[ 27.794609] ACPI Error: Method parse/execution failed \_SB.PCI0.PEG0._PRT, AE_NOT_FOUND (20180531/psparse-516)
[ 27.894229] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 415.27 Thu Dec 20 17:25:03 CST 2018 (using threaded interrupts)
[ 27.900766] PKCS#7 signature not signed with a trusted key
[ 27.901674] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 415.27 Thu Dec 20 17:06:08 CST 2018
[ 27.903901] PKCS#7 signature not signed with a trusted key
[ 27.904954] [drm] [nvidia-drm] [GPU ID 0x00000100] Loading driver
[ 28.305317] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 28.305318] [drm] No driver support for vblank timestamp query.
[ 28.305320] [drm] Initialized nvidia-drm 0.0.0 20160202 for 0000:01:00.0 on minor 1
[ 28.315254] PKCS#7 signature not signed with a trusted key
[ 28.318040] nvidia-uvm: Loaded the UVM driver in 8 mode, major device number 236
答案1
似乎/etc/apt/sources.d/有一堆文件引用了错误的频道（通过频道，我的意思是发行版，所以 trusty/xenial/cosmic/disco 等），因此手动清理这些文件（通过使它们全部成为正确的频道sed）例如，bionic 到 cosmic：
sudo sed -i -- 's/bionic/cosmic/g' /etc/apt/sources.list.d/*
sudo sed -i -- 's/xenial/cosmic/g' /etc/apt/sources.list.d/*
然后运行
sudo apt update
sudo apt upgrade
sudo apt autoremove
基本上使系统恢复稳定状态