我有一台装有 Ubuntu 20.04 的计算机。安装 Ubuntu 20.04 后，挂起工作正常，但不久前它停止了工作。
我按下菜单中的“暂停”按钮，之后屏幕变黑了几秒钟，但风扇继续旋转。之后屏幕打开，我看到登录屏幕。当我输入密码时，我看到所有 X 应用程序都被破坏了。
我尝试了不同的内核，但结果是一样的。
cat /proc/acpi/wakeup命令给出以下结果：
Device S-state Status Sysfs node
PS2K S3 *enabled pnp:00:03
PS2M S3 *disabled pnp:00:04
IP2P S3 *disabled
XHCI S4 *enabled pci:0000:00:14.0
EHC1 S4 *enabled pci:0000:00:1d.0
EHC2 S4 *enabled pci:0000:00:1a.0
RP01 S4 *disabled pci:0000:00:1c.0
RP02 S4 *disabled
RP03 S4 *disabled
RP04 S4 *enabled pci:0000:00:1c.3
RTLG S4 *disabled pci:0000:06:00.0
RP05 S4 *disabled
RP06 S4 *disabled
RP07 S4 *disabled
RP08 S4 *disabled
RTLA S4 *disabled
BR1A S4 *enabled pci:0000:00:01.0
BR1B S4 *enabled pci:0000:00:01.1
BR2A S4 *enabled pci:0000:00:02.0
BR2B S4 *disabled
BR2C S4 *disabled
BR2D S4 *disabled
BR3A S4 *enabled pci:0000:00:03.0
BR3B S4 *disabled
BR3C S4 *disabled
BR3D S4 *disabled
QRP0 S4 *disabled
QR1A S4 *disabled
QR1B S4 *disabled
QR2A S4 *disabled
QR2B S4 *disabled
QR2C S4 *disabled
QR2D S4 *disabled
QR3A S4 *disabled
QR3B S4 *disabled
QR3C S4 *disabled
QR3D S4 *disabled
RRP0 S4 *disabled
RR1A S4 *disabled
RR1B S4 *disabled
RR2A S4 *disabled
RR2B S4 *disabled
RR2C S4 *disabled
RR2D S4 *disabled
RR3A S4 *disabled
RR3B S4 *disabled
RR3C S4 *disabled
RR3D S4 *disabled
SRP0 S4 *disabled
SR1A S4 *disabled
SR1B S4 *disabled
SR2A S4 *disabled
SR2B S4 *disabled
SR2C S4 *disabled
SR2D S4 *disabled
SR3A S4 *disabled
SR3B S4 *disabled
SR3C S4 *disabled
SR3D S4 *disabled
journalctl -b | grep suspend命令显示下一个错误：
feb 05 21:00:17 user-pc gsd-power[1888]: Unable to inhibit suspend: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying
feb 05 21:00:17 user-pc gsd-power[2610]: Unable to inhibit suspend: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying
feb 05 21:00:17 user-pc gsd-media-keys[2607]: Unable to inhibit suspend: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying
feb 05 21:00:17 user-pc gsd-media-keys[1874]: Unable to inhibit suspend: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying```
I tried to install Unity desktop instead of Gnome but result is the same except it doesn't kill X applications.
In my ```/var/log/syslog``` I see the next troubles connected with suspend:
```Feb 8 21:39:04 user-pc ModemManager[1208]: <warn> [sleep-monitor] inhibit failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying
Feb 8 21:39:04 user-pc upowerd[1420]: Could not acquire inhibitor lock: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying
Feb 8 21:39:04 user-pc systemd[1]: systemd-logind.service: Main process exited, code=exited, status=1/FAILURE
Feb 8 21:39:04 user-pc systemd[1]: systemd-logind.service: Failed with result 'exit-code'.
pm-suspend 正常挂起但有时无法唤醒。
你可以帮帮我吗？
答案1
我的电脑有 AMD 6450 gpu 和 Nvidia Tesla K20m gpu。在我完全将两个 gpu 驱动程序重新安装为专有驱动程序后，问题就消失了。