My external monitor stopped working out of nowhere. I use a Dell Inspiron 15 with Debian 10, after a few months the external monitor was no longer beign recognized.
I tested the monitor (with the same HDMI cable) in another computer and it worked fine. Couldn't test my notebook in another monitor yet HOWEVER when I boot the PC the [same] external monitor works up to the log in page. After I log in with my user the monitor go black and warns about no signal. [So it isn't my hdmi entry]
I read somewhere it coul be related to battery saving mode, but couldn't find anything related in the settings.
But couldn't find the mentioned
(There is only
and none of those file has the line:
# Set value to 0 to disable modesetting # options nvidia-drm modeset=1
xrandr return: (with the monitor connected or not)
Screen 0: minimum 320 x 200, current 1280 x 720, maximum 8192 x 8192 XWAYLAND2 connected 1280x720+0+0 (normal left inverted right x axis y axis) 340mm x 190mm 1280x720 59.65*+
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b) 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b) 00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b) 00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04) 00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04) 00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4) 00:1c.2 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4) 00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4) 00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04) 00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04) 02:00.0 Network controller: Intel Corporation Wireless 7260 (rev 73) 03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTL8411B PCI Express Card Reader (rev 01) 03:00.1 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 12)
What else can I do?