Confirming fixed in Debian 10.5 point release: Bug is reproducible with kernel 4.19.0-9 running, not reproducible with 4.19.0-10 running. Tested via xdg-screensaver lock.
- Bug#870641: light-locker: screen stays black after closi... Tareeq Ali
- Bug#870641: light-locker: screen stays black after closi... David Farrier
- Bug#870641: light-locker: screen stays black after ... Yves-Alexis Perez
- Bug#870641: light-locker: screen stays black af... Aaron Lu
- Bug#870641: light-locker: screen stays blac... Yves-Alexis Perez
- Bug#870641: light-locker: screen stays ... Aaron Lu
- Bug#870641: light-locker: screen s... Yves-Alexis Perez
- Bug#870641: light-locker: screen s... David Farrier
- Bug#870641: light-locker: scre... Aaron Lu
- Bug#870641: light-locker: scre... Aaron Lu
- Bug#870641: light-locker: scre... Udo Richter