我最近安装了 F37，它在锁定屏幕后将我的显示器置于省电模式。最近它不再这样做了，但我不知道什么时候开始的。
- 运行 KDE
- 我已安装更新并重新启动。
- 我已经创建了一个全新的用户，但它仍然没有进入睡眠状态。
这是戴尔 Optiplex 7040 微型台式机。
我看到这个，看起来不对，但我不知道以前是否发生过这种情况，我没有理由检查:)
$ xset dpms
server does not have extension for dpms option
希望有用的随机信息。
$ lsmod | grep i915
i915 3174400 83
drm_buddy 20480 1 i915
drm_display_helper 180224 1 i915
cec 81920 2 drm_display_helper,i915
ttm 94208 1 i915
video 65536 2 dell_wmi,i915
$ lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Host Bridge/DRAM Registers (rev 07)
00:01.0 PCI bridge: Intel Corporation 6th-10th Gen Core Processor PCIe Controller (x16) (rev 07)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06)
00:14.0 USB controller: Intel Corporation 100 Series/C230 Series Chipset Family USB 3.0 xHCI Controller (rev 31)
00:14.2 Signal processing controller: Intel Corporation 100 Series/C230 Series Chipset Family Thermal Subsystem (rev 31)
00:16.0 Communication controller: Intel Corporation 100 Series/C230 Series Chipset Family MEI Controller #1 (rev 31)
00:16.3 Serial controller: Intel Corporation 100 Series/C230 Series Chipset Family KT Redirection (rev 31)
00:17.0 RAID bus controller: Intel Corporation SATA Controller [RAID mode] (rev 31)
00:1f.0 ISA bridge: Intel Corporation Q170 Chipset LPC/eSPI Controller (rev 31)
00:1f.2 Memory controller: Intel Corporation 100 Series/C230 Series Chipset Family Power Management Controller (rev 31)
00:1f.3 Audio device: Intel Corporation 100 Series/C230 Series Chipset Family HD Audio Controller (rev 31)
00:1f.4 SMBus: Intel Corporation 100 Series/C230 Series Chipset Family SMBus (rev 31)
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (2) I219-LM (rev 31)
任何有关如何解决此问题的指示将不胜感激。