输入密码后，屏幕变黑了很长时间，然后我才登录。这种情况第一次发生是在我换了新的 GPU 时。两个 GPU 都是 nvidia 2070。以下是 dmesg 的相关输出：
[ 4.396503] input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:03.1/0000:07:00.1/sound/card0/input25
[ 4.396554] input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:03.1/0000:07:00.1/sound/card0/input26
[ 4.396590] input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:03.1/0000:07:00.1/sound/card0/input27
[ 4.396626] input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:03.1/0000:07:00.1/sound/card0/input28
[ 4.472997] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 4.473007] ucsi_ccg 0-0008: i2c_transfer failed -110
[ 4.473009] ucsi_ccg 0-0008: ucsi_ccg_init failed - -110
[ 4.473018] ucsi_ccg: probe of 0-0008 failed with error -110
[ 4.473077] kvm: disabled by bios
[ 4.473091] EDAC amd64: Node 0: DRAM ECC disabled.
[ 4.473093] EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load.
Either enable ECC checking or force module loading by setting 'ecc_enable_override'.
(Note that use of the override may cause unknown side effects.)
[ 4.592850] EDAC amd64: Node 0: DRAM ECC disabled.
[ 4.592853] EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load.
Either enable ECC checking or force module loading by setting 'ecc_enable_override'.
(Note that use of the override may cause unknown side effects.)
[ 4.593168] kvm: disabled by bios
[ 4.668497] Bluetooth: hci0: RTL: fw version 0xab6b705c
[ 4.696682] kvm: disabled by bios
[ 4.696945] EDAC amd64: Node 0: DRAM ECC disabled.
[ 4.696946] EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load.
Either enable ECC checking or force module loading by setting 'ecc_enable_override'.
(Note that use of the override may cause unknown side effects.)
[ 4.805161] EDAC amd64: Node 0: DRAM ECC disabled.
[ 4.805163] EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load.
Either enable ECC checking or force module loading by setting 'ecc_enable_override'.
(Note that use of the override may cause unknown side effects.)
[ 4.805180] NET: Registered protocol family 38
[ 4.805202] kvm: disabled by bios
[ 4.827383] rtw_pci 0000:05:00.0: start vif 70:66:55:0c:05:dd on port 0
[ 4.940777] kvm: disabled by bios
[ 4.941002] EDAC amd64: Node 0: DRAM ECC disabled.
[ 4.941004] EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load.
Either enable ECC checking or force module loading by setting 'ecc_enable_override'.
(Note that use of the override may cause unknown side effects.)
[ 5.234828] resource sanity check: requesting [mem 0x000c0000-0x000fffff], which spans more than PCI Bus 0000:00 [mem 0x000c0000-0x000dffff window]
[ 5.234930] caller os_map_kernel_space.part.0+0x73/0x80 [nvidia] mapping multiple BARs
[ 5.288578] EDAC amd64: Node 0: DRAM ECC disabled.
[ 5.288580] EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load.
Either enable ECC checking or force module loading by setting 'ecc_enable_override'.
(Note that use of the override may cause unknown side effects.)
[ 5.288994] kvm: disabled by bios
[ 5.528038] Bluetooth: hci1: command 0x1001 tx timeout
[ 5.692873] kvm: disabled by bios
[ 5.693058] EDAC amd64: Node 0: DRAM ECC disabled.
[ 5.693059] EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load.
Either enable ECC checking or force module loading by setting 'ecc_enable_override'.
(Note that use of the override may cause unknown side effects.)
[ 5.800865] kvm: disabled by bios
[ 5.801058] EDAC amd64: Node 0: DRAM ECC disabled.
[ 5.801060] EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load.
Either enable ECC checking or force module loading by setting 'ecc_enable_override'.
(Note that use of the override may cause unknown side effects.)
[ 6.080913] kvm: disabled by bios
[ 6.081216] EDAC amd64: Node 0: DRAM ECC disabled.
[ 6.081217] EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load.
Either enable ECC checking or force module loading by setting 'ecc_enable_override'.
(Note that use of the override may cause unknown side effects.)
[ 6.200738] EDAC amd64: Node 0: DRAM ECC disabled.
[ 6.200739] EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load.
Either enable ECC checking or force module loading by setting 'ecc_enable_override'.
(Note that use of the override may cause unknown side effects.)
[ 6.201172] kvm: disabled by bios
[ 6.308902] EDAC amd64: Node 0: DRAM ECC disabled.
[ 6.308904] EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load.
Either enable ECC checking or force module loading by setting 'ecc_enable_override'.
(Note that use of the override may cause unknown side effects.)
[ 6.309129] kvm: disabled by bios
[ 6.420514] EDAC amd64: Node 0: DRAM ECC disabled.
[ 6.420515] EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load.
Either enable ECC checking or force module loading by setting 'ecc_enable_override'.
(Note that use of the override may cause unknown side effects.)
[ 7.324587] igb 0000:04:00.0 enp4s0: igb: enp4s0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[ 7.432252] IPv6: ADDRCONF(NETDEV_CHANGE): enp4s0: link becomes ready
[ 7.667842] rfkill: input handler disabled
[ 13.752039] Bluetooth: hci1: RTL: HCI_OP_READ_LOCAL_VERSION failed (-110)
[ 16.853545] Bluetooth: RFCOMM TTY layer initialized
[ 16.853550] Bluetooth: RFCOMM socket layer initialized
[ 16.853555] Bluetooth: RFCOMM ver 1.11
[ 17.152021] snd_hda_codec_hdmi hdaudioC0D0: HDMI: invalid ELD data byte 0
[ 17.312498] rfkill: input handler enabled
[ 17.852012] snd_hda_codec_hdmi hdaudioC0D0: HDMI: invalid ELD data byte 39
[ 17.920017] snd_hda_codec_hdmi hdaudioC0D0: HDMI: invalid ELD data byte 2
[ 20.804522] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 21.805019] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 22.806540] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 23.808015] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 24.809524] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 25.811039] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 26.812518] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 27.814035] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 28.815548] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 29.817017] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 30.818528] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 31.820019] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 32.821521] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 33.823034] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 34.824526] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 35.837669] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 36.851041] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 37.862911] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 38.873152] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 39.882630] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 40.891077] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 41.898663] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 42.905472] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 43.911630] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 44.917202] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 45.922239] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 47.177551] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 48.180689] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 49.184495] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 50.187005] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 51.190241] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 52.192282] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 53.308282] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 54.309944] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 55.311431] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 56.312822] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 57.314104] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 58.315287] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 59.316384] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 60.317405] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 61.920091] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 62.930979] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 63.941790] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 64.952563] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 65.963333] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 66.974034] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 67.984900] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 68.996935] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 70.247836] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 71.249773] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 72.251605] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 73.253382] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 74.283634] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 75.559567] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 76.562143] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 77.564665] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 78.567113] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 79.569537] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 80.571910] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 81.574215] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 82.576513] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 83.578735] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 84.580956] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 85.583143] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 86.585275] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 87.587399] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 88.589500] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 89.591542] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 90.593597] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 91.714170] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 92.765177] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 93.780646] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 94.796134] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 95.549446] snd_hda_codec_hdmi hdaudioC0D0: HDMI: invalid ELD data byte 1
[ 95.673519] snd_hda_codec_hdmi hdaudioC0D0: HDMI: invalid ELD data byte 5
[ 97.076402] rfkill: input handler disabled
[ 105.469710] logitech-hidpp-device 0003:046D:4082.000C: HID++ 4.5 device connected.
任何帮助，将不胜感激。
编辑：抱歉，我遗漏了该信息，我使用的是 ubuntu 20.04，我尝试了 nvidia-driver-440 和 450。内核版本是 5.4.0-42-generic
答案1
好的，我找到了问题所在。这不是 ubuntu 本身的问题，而是 OpenRGB 的问题。我在 .profile 中有一个命令，用于将内存的 RGB 灯更改为白色。但是 OpenRGB 在我的显卡上花了很长时间，我猜是试图检测显卡上的任何设备。我的显卡没有 RGB。我在命令末尾添加了一个 &，以便在后台运行。现在我立即登录，大约一分钟后 RGB 灯就变了。