On 06/04/2015 12:15 PM, Neal Becker wrote:
> I have 2 monitors (laptop + external). If I close laptop lid, system
> will
> sleep. Now disconnect hdmi to monitor. Now open lid. lock screen is
> displayed.
>
> But there is no way to enter the password. I can move mouse around.
> Caplock is responded to. But I can't enter any characters into the
> password field.
>
> Only thing I can do is switch to VT, and do systemctl restart sddm.
>
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Sounds like the infamous plasmashell lockup. Since the screen was
reconfigured while blanked, something got stuck. All I can say is to
disconnect the HDMI cable before you close the laptop lid. Until this
bug gets fixed (or even found), all we can do is work around the issues.
My latest glitch is that it won't turn the backlight back on after it
has powered it off - VTs work just fine, but the primary display where
SDDM and plasmashell are running stay blank.
I did disconnect before sleeping - that doesn't help :(
The only workaround for now is turn off lock screen on wakeup.