I found this workaround: https://bugzilla.redhat.com/show_bug.cgi?id=512958#c23
sudo su echo 1 > /proc/acpi/video/C085/DOS echo 0 > /proc/acpi/video/C085/DOS
I found this workaround: /bugzilla. redhat. com/show_ bug.cgi? id=512958# c23
https:/
sudo su video/C085/ DOS video/C085/ DOS
echo 1 > /proc/acpi/
echo 0 > /proc/acpi/