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Display loses the signal just out of the blue intermittenly.
Unplugging the DP adapter and plugging it back in seems to bring it back alive.
Display: Acer XV272U KV
GPU: NVIDIA GeForce RTX 3060
GPU driver: nvidia 550.67-3
I see these related log entries
Mar 31 17:01:26 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0): DFP-6: disconnected
Mar 31 17:01:26 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0): DFP-6: Internal DisplayPort
Mar 31 17:01:26 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0): DFP-6: 2670.0 MHz maximum pixel clock
Mar 31 17:01:26 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0):
Mar 31 17:01:26 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0): DFP-0: disconnected
Mar 31 17:01:26 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0): DFP-0: Internal DisplayPort
Mar 31 17:01:26 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0): DFP-0: 2670.0 MHz maximum pixel clock
Mar 31 17:01:26 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0):
...
Mar 31 17:01:26 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0):
Mar 31 17:01:26 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0): DFP-7: disconnected
Mar 31 17:01:26 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0): DFP-7: Internal TMDS
Mar 31 17:01:26 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0): DFP-7: 165.0 MHz maximum pixel clock
Mar 31 17:01:26 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0):
Mar 31 17:01:57 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0): Acer XV272U KV (DFP-3): connected
Mar 31 17:01:57 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0): Acer XV272U KV (DFP-3): Internal DisplayPort
Mar 31 17:01:57 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0): Acer XV272U KV (DFP-3): 2670.0 MHz maximum pixel clock
Mar 31 17:01:57 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0):
Mar 31 17:01:58 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0): DFP-0: disconnected
Mar 31 17:01:58 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0): DFP-0: Internal DisplayPort
Mar 31 17:01:58 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0): DFP-0: 2670.0 MHz maximum pixel clock
Mar 31 17:01:58 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0):
Mar 31 17:01:58 amatika /usr/lib/gdm-x-session[1391]: (--) NVIDIA(GPU-0): DFP-1: disconnected
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Related to what?
The snippet shows DFP-{0,1,6,7} only being disconnected and DFP-3 only being connected.
It provides no useful information on the situation at all.
Do you have a replacement cable?
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