我最近安装了自己的 Arch Linux。我的双显示器设置中的其中一台显示器出现一些问题。每隔一段时间，我的显示器就会变黑一秒钟，然后再刷新，这似乎是随机的。这真是令人沮丧。仅我的一台显示器出现这种情况，另一台显示器完全不受影响。我已经尝试了各种方法并阅读了大量的论坛帖子，但我无法解决这个问题。
我正在运行 nvidia-450 驱动程序和 GTX 1080 TI。有问题的显示器通过 Displayport 连接，并且是 2k 显示器。另一台显示器也通过 Displayport 连接，是 1080p 显示器。
以下是一些可能有帮助的命令输出，已针对相关部分进行了编辑：
lspci - k
08:00.0 VGA compatible controller: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] (rev a1)
Subsystem: Gigabyte Technology Co., Ltd Device 374c
Kernel driver in use: nvidia
Kernel modules: nouveau, nvidia_drm, nvidia
dmesg
[ 5.896505] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 450.66 Wed Aug 12 19:37:58 UTC 2020
[ 5.947554] [drm] [nvidia-drm] [GPU ID 0x00000800] Loading driver
[ 5.947559] [drm] Initialized nvidia-drm 0.0.0 20160202 for 0000:08:00.0 on minor 0
[ 6.031959] audit: type=1130 audit(1598214227.195:21): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=nvidia-persistenced comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[ 6.034669] usb 1-5: set resolution quirk: cval->res = 384
[ 6.034934] uvcvideo: Found UVC 1.00 device <unnamed> (046d:0825)
[ 6.119775] uvcvideo 1-5:1.0: Entity type for entity Extension 4 was not initialized!
[ 6.119779] uvcvideo 1-5:1.0: Entity type for entity Extension 6 was not initialized!
[ 6.119781] uvcvideo 1-5:1.0: Entity type for entity Extension 7 was not initialized!
[ 6.119783] uvcvideo 1-5:1.0: Entity type for entity Processing 2 was not initialized!
[ 6.119785] uvcvideo 1-5:1.0: Entity type for entity Extension 3 was not initialized!
[ 6.119787] uvcvideo 1-5:1.0: Entity type for entity Camera 1 was not initialized!
[ 6.119882] input: UVC Camera (046d:0825) as /devices/pci0000:00/0000:00:01.3/0000:01:00.0/usb1/1-5/1-5:1.0/input/input32
[ 6.119971] usbcore: registered new interface driver uvcvideo
[ 6.119972] USB Video Class driver (1.1.1)
[ 6.135659] usbcore: registered new interface driver snd-usb-audio
[ 7.092020] audit: type=1103 audit(1598214228.255:22): pid=541 uid=0 auid=4294967295 ses=4294967295 msg='op=PAM:setcred grantors=pam_env,pam_permit acct="lightdm" exe="/usr/bin/lightdm" hostname=? addr=? terminal=:0 res=success'
[ 7.114373] audit: type=1130 audit(1598214228.278:23): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=user-runtime-dir@976 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[ 7.124372] audit: type=1101 audit(1598214228.288:24): pid=545 uid=0 auid=4294967295 ses=4294967295 msg='op=PAM:accounting grantors=pam_access,pam_unix,pam_permit,pam_time acct="lightdm" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[ 7.124392] audit: type=1103 audit(1598214228.288:25): pid=545 uid=0 auid=4294967295 ses=4294967295 msg='op=PAM:setcred grantors=? acct="lightdm" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=failed'
[ 7.124425] audit: type=1006 audit(1598214228.288:26): pid=545 uid=0 old-auid=4294967295 auid=976 tty=(none) old-ses=4294967295 ses=1 res=1
[ 7.743903] igb 0000:06:00.0 enp6s0: igb: enp6s0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
[ 7.956953] IPv6: ADDRCONF(NETDEV_CHANGE): enp6s0: link becomes ready
[ 9.320055] usb 5-4: device descriptor read/64, error -110
[ 24.893783] usb 5-4: device descriptor read/64, error -110
[ 25.123356] usb 5-4: new high-speed USB device number 4 using xhci_hcd
[ 30.440070] usb 5-4: device descriptor read/64, error -110
[ 46.013782] usb 5-4: device descriptor read/64, error -110
[ 46.120071] usb usb5-port4: attempt power cycle
[ 46.763345] usb 5-4: new high-speed USB device number 5 using xhci_hcd
[ 51.863777] xhci_hcd 0000:09:00.3: Timeout while waiting for setup device command
[ 57.197078] xhci_hcd 0000:09:00.3: Timeout while waiting for setup device command
[ 57.403701] usb 5-4: device not accepting address 5, error -62
[ 57.526684] usb 5-4: new high-speed USB device number 6 using xhci_hcd
[ 62.530134] xhci_hcd 0000:09:00.3: Timeout while waiting for setup device command
[ 67.863370] xhci_hcd 0000:09:00.3: Timeout while waiting for setup device command
[ 68.070345] usb 5-4: device not accepting address 6, error -62
[ 68.070416] usb usb5-port4: unable to enumerate USB device
[ 71.757209] kauditd_printk_skb: 5 callbacks suppressed
如果您需要更多信息，请告诉我。这个问题一直让我抓狂。
答案1
事实证明，我的屏幕闪烁问题是由我的合成器：picom 引起的。我通过在 picom 配置文件中将后端从 glx 更改为 xrender 解决了这个问题。
答案2
您是否尝试过切换到开源驱动程序？由于处理这些问题的人员数量较多，因此出现问题的可能性较小。如果没有，可能只是您的显卡没有获得足够的电量。