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Phantom display, which doesn't exist, getting recognized #13
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Would you mind running https://github.com/emersion/drm_info/ on your system running COSMIC and post the results here? Without any information about your system it is very hard to figure out where that unknown display comes from, |
Hello there @Drakulix, for sure! Sorry, I was kind of in a hurry when filing this bug report and totally forgot to attach any information. Below is the output you wanted:
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It's related to Linux kernel 6.8.0 and the new NVIDIA GSP firmware. I've heard that it can be fixed by setting |
As @mmstick pointed out this seems to be an issue of the nvidia driver. You end up with two graphic devices being detected. There is not much Cosmic can do here, as However it seems we do need to investigate workarounds for our kernel + nvidia driver configuration to make this work out of the box on Pop!_OS, so thanks for the report. It would be interesting to know, if the workaround @mmstick mentioned works for you! |
I added the parameter as instructed and rebooted twice. However, the problem seems to persist. This is the
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Edit: drm_info worked when manually selecting the paths, see attached. I had apparently the same issue, ran: sudo kernelstub -a "nvidia_drm.fbdev=1" However, I built and installed drm_info, ran it, and got no output, sorry. $ uname -a Thelio Mira thelio-mira-b4.1 $ cosmic-randr list $ lspci |
My
cosmic-randr list
is displaying a third display which isn't connected to the PC and doesn't show up on the normal Gnome Cosmic version of the installation. It is also being shown within the cosmic settings because of this.There are 2 physical displays connected, which show up correctly and work fine. This however causes the mouse to just vanish when going offscreen to where Cosmic thinks the third display is.
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