Display connector problem

Hi! I'm not sure where to put this question, as I don't really know what the problem is.

I have a recently built computer based around the AMD 3200G APU with a recent Manjaro Stable(xfce if it matters). The computer is normally connected to a monitor via the DVI connector from the motherboard. It has been working perfectly since first install, about a week ago.

Since later today, after a reboot, it will however not display any picture through the DVI connector. A reboot with the monitor connected through the HDMI port and everything seems to work. I would however like to go back to using the DVI port since I have other uses for the only HDMI connector on the monitor.

The monitor seems to get a signal through the DVI cable, since it will detect that a cable is connected, and it does not go back into power save mode.

Any idaas of what can be wrong? Or what else I can do to trouble shoot?

user@arete ~]$ inxi -Fx
System:
  Host: arete Kernel: 5.4.27-1-MANJARO x86_64 bits: 64 compiler: gcc 
  v: 9.3.0 Desktop: Xfce 4.14.2 Distro: Manjaro Linux 
Machine:
  Type: Desktop System: Gigabyte product: B450M DS3H v: N/A 
  serial: <root required> 
  Mobo: Gigabyte model: B450M DS3H-CF v: x.x serial: <root required> 
  UEFI [Legacy]: American Megatrends v: F41 date: 07/22/2019 
CPU:
  Topology: Quad Core model: AMD Ryzen 3 3200G with Radeon Vega Graphics 
  bits: 64 type: MCP arch: Zen+ rev: 1 L2 cache: 2048 KiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm 
  bogomips: 28759 
  Speed: 1259 MHz min/max: 1400/3600 MHz Core speeds (MHz): 1: 1258 2: 1315 
  3: 1258 4: 1259 
Graphics:
  Device-1: AMD Picasso driver: amdgpu v: kernel bus ID: 06:00.0 
  Display: x11 server: X.Org 1.20.7 driver: amdgpu,ati unloaded: modesetting 
  resolution: 1920x1200~60Hz 
  OpenGL: renderer: AMD RAVEN (DRM 3.35.0 5.4.27-1-MANJARO LLVM 9.0.1) 
  v: 4.5 Mesa 19.3.5 direct render: Yes 
Audio:
  Device-1: AMD Raven/Raven2/Fenghuang HDMI/DP Audio driver: snd_hda_intel 
  v: kernel bus ID: 06:00.1 
  Device-2: AMD Family 17h HD Audio vendor: Gigabyte driver: snd_hda_intel 
  v: kernel bus ID: 06:00.6 
  Sound Server: ALSA v: k5.4.27-1-MANJARO 
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  vendor: Gigabyte driver: r8169 v: kernel port: f000 bus ID: 04:00.0 
  IF: enp4s0 state: up speed: 1000 Mbps duplex: full mac: b4:2e:99:94:6f:0b 
Drives:
  Local Storage: total: 111.79 GiB used: 9.96 GiB (8.9%) 
  ID-1: /dev/sda vendor: Kingston model: SA400M8120G size: 111.79 GiB 
Partition:
  ID-1: / size: 109.53 GiB used: 9.96 GiB (9.1%) fs: ext4 dev: /dev/sda1 
Sensors:
  System Temperatures: cpu: 42.6 C mobo: N/A gpu: amdgpu temp: 16 C 
  Fan Speeds (RPM): N/A 
Info:
  Processes: 193 Uptime: 7m Memory: 13.68 GiB used: 996.1 MiB (7.1%) 
  Init: systemd Compilers: gcc: 9.3.0 Shell: bash v: 5.0.16 inxi: 3.0.37 
[user@arete ~]$ 

Hello,

Probably you have to remove the ~/.config/xfce4/xfconf/xfce-perchannel-xml/displays.xml file and reboot.

Thanks for the tip. That file did point towards the HDMI connection, yes, but removing it and rebooting did unfortunately now resolve the issue.

unfortunately resolved ? This is new to me ... :slight_smile:

Sorry, my fingers are bad today. The "now" should have been a "not". It did not resolve the issue... same behaviour as before :slight_smile:

I did however learn something about Xfce and thus have some leads I want to follow up on. It's been a long long time since i did linux seriously.

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