Зависание компьютера при запуске optirun

При запуске приложений иногда виснет экран, при этом помогает только отключение с кнопки питания.
В /var/log/kern.log заметил такие строки:
Aug  9 17:56:52 mint-17 kernel: [98997.176103] nvidia 0000:01:00.0: irq 50 for MSI/MSI-X
Aug  9 17:56:52 mint-17 kernel: [98997.178604] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140424/nsarguments-95)
Aug  9 17:56:52 mint-17 kernel: [98997.178648] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140424/nsarguments-95)
Aug  9 17:56:52 mint-17 kernel: [98997.178668] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140424/nsarguments-95)
Aug  9 17:56:52 mint-17 kernel: [98997.178698] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140424/nsarguments-95)
Aug  9 17:56:52 mint-17 kernel: [98997.178717] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140424/nsarguments-95)
Aug  9 17:56:52 mint-17 kernel: [98997.178735] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140424/nsarguments-95)
Aug  9 17:56:52 mint-17 kernel: [98997.178773] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140424/nsarguments-95)
Aug  9 17:56:52 mint-17 kernel: [98997.178791] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140424/nsarguments-95)
Aug  9 17:56:52 mint-17 kernel: [98997.179120] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140424/nsarguments-95)

Тут нашел решение, перед запуском приложения, выполнить команду:

$ sudo tee /sys/module/rcutree/parameters/rcu_idle_gp_delay <<<1

Пример запуска приложения:

$ sudo tee /sys/module/rcutree/parameters/rcu_idle_gp_delay <<<1 && optirun steam

Я вообще в rc.local добавил.