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#1 2017-09-15 08:43:13

wjhandley
Member
Registered: 2017-09-15
Posts: 2

[SOLVED] Laptop freeze upon connecting external monitor (NVIDIA)

Recently my laptop has started freezing upon connecting an external monitor. It unfreezes if the monitor is disconnected

In the past, I have been able to connect monitors relatively painlessly with xrandr.

I'm pretty sure it has something to do with the NVIDIA graphics card, as the Xorg.0.log generates has the lines:

[   742.066] (EE) NVIDIA(GPU-0): Unable to add conservative default mode "nvidia-auto-select".
[   742.066] (EE) NVIDIA(GPU-0): Unable to add "nvidia-auto-select" mode to ModePool.

immediately after a connect-freeze-disconnect cycle.

I have worked my way through the various configuration suggestions on these three pages:

* https://wiki.archlinux.org/index.php/NVIDIA
* https://wiki.archlinux.org/index.php/NVIDIA_Optimus
* https://wiki.archlinux.org/index.php/NV … leshooting

and the problem still occurs.

If Optimus is being used (i.e. I've turned on both cards at BIOS) then the system doesn't immediately freeze on physical connection, but does when trying to connect with xrandr.

The 'nvidia-auto-select' issue is present in all of the configurations

Last edited by wjhandley (2017-09-18 11:50:34)

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#2 2017-09-18 11:48:52

wjhandley
Member
Registered: 2017-09-15
Posts: 2

Re: [SOLVED] Laptop freeze upon connecting external monitor (NVIDIA)

I managed to fix the issue by uninstalling the suite of packages 'xorg', and installing only the ones I actually use.

I think it might have been the xf86-video-vesa that was automatically installed that was causing the issues.

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