Hello, I'm see some similar bug reported as bug 12184 but I'm running: xfce4-settings-4.12.1-2.fc26.x86_64 And when I undock laptop, the monitor doesn't light up. I need to somehow trigger `xrandr --auto` to get it back running. Laptop is T460p with optimus config but I'm only using Intel graphics as far as I can tell. Fedora 26 Kernel 4.12.9-300.fc26.x86_64 I think issue is XFCE specific because on gnome people tell me it works properly. Any ideas?
btw this is particularly bad when suspending the laptop, then undocking, then go somewhere and then see black screen while laptop is locked so I can't trigger `xrand --auto`. IMO whenever xfce detects all monitors are turned off, it should turn on one of them or ask user whether they really want all monitors off.
Depending on which display connector your laptop has, it is either supported by 4.12 or not. To be concrete: eDP is not supported yet, but support for it was merged to git master and released with 4.13.1 For reference: https://git.xfce.org/xfce/xfce4-settings/commit/?id=6974d5098262ef6e5b6a0a3b8287a285098b0dc2 Returning from suspend is a different use-case and there are many more factors and applications in play unfortunately (including the power manager).
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