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Bug#991788: xfce4-settings: black screen after suspend when laptop lid is closed and re-opened

On Mon, 2 Aug 2021 02:08:09 +0200 (CEST) truetechie@tutanota.com wrote:
> Package: xfce4-settings
> Version: 4.16.0-1
> Severity: critical

> On Debian and, by extension, Ubuntu, when suspending a laptop via closing the lid on XFCE, the screen stays black after resuming from suspend. The only way to "fix" the system is to blindly type "xrandr --auto" into a terminal or switch to a TTY and restart X.

As an xfce user, I haven't experienced this problem. What graphics hardware and kernel are you seeing this with? Is this on battery or when plugged in? Are you using light-locker (and if so, what version)? Do you have upower installed (and if so, what version)? What is xfce4 configured to do on a lid close (xfconf-query --verbose --list -c xfce4-power-manager)?

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