Eu tenho uma máquina top de linha que roda o Stellaris incrivelmente rápido no Windows, mas no Ubuntu 18.04 stellaris roda SUPER devagar como se nem estivesse usando a placa gráfica. Eu estou usando o cartão nvidia.
Vi isso no dmesg, não tenho certeza se está relacionado. Meu palpite é que não tem relação, já que parece ter acontecido em menos de um segundo?:
[ 193.532941] powercap intel-rapl:0: package locked by BIOS, monitoring only
[ 194.574036] CPU5: Core temperature above threshold, cpu clock throttled (total events = 1)
[ 194.574037] CPU1: Core temperature above threshold, cpu clock throttled (total events = 1)
[ 194.574039] CPU3: Package temperature above threshold, cpu clock throttled (total events = 1)
[ 194.574043] CPU4: Package temperature above threshold, cpu clock throttled (total events = 1)
[ 194.574044] CPU6: Package temperature above threshold, cpu clock throttled (total events = 1)
[ 194.574045] CPU7: Package temperature above threshold, cpu clock throttled (total events = 1)
[ 194.574046] CPU0: Package temperature above threshold, cpu clock throttled (total events = 1)
[ 194.574047] CPU2: Package temperature above threshold, cpu clock throttled (total events = 1)
[ 194.574048] CPU1: Package temperature above threshold, cpu clock throttled (total events = 1)
[ 194.574057] CPU5: Package temperature above threshold, cpu clock throttled (total events = 1)
[ 194.575038] CPU1: Core temperature/speed normal
[ 194.575039] CPU5: Core temperature/speed normal
[ 194.575040] CPU4: Package temperature/speed normal
[ 194.575041] CPU0: Package temperature/speed normal
[ 194.575042] CPU7: Package temperature/speed normal
[ 194.575043] CPU3: Package temperature/speed normal
[ 194.575044] CPU6: Package temperature/speed normal
[ 194.575045] CPU2: Package temperature/speed normal
[ 194.575045] CPU5: Package temperature/speed normal
[ 194.575046] CPU1: Package temperature/speed normal
[ 201.541002] intel_pstate: Turbo disabled by BIOS or unavailable on processor
[ 227.457422] intel_pstate: Turbo disabled by BIOS or unavailable on processor
[ 231.461084] intel_pstate: Turbo disabled by BIOS or unavailable on processor
[ 235.464786] intel_pstate: Turbo disabled by BIOS or unavailable on processor
[ 239.468445] intel_pstate: Turbo disabled by BIOS or unavailable on processor
[ 256.793728] intel_pstate: Turbo disabled by BIOS or unavailable on processor
Acabei de instalar os drivers mais recentes da nVidia (Software e atualizações > Drivers adicionais & nt; nVidia) ou sudo apt install nvidia-current
Mas então quando eu reiniciei tudo ficou preto, porque eu estou em uma placa Optimus (híbrido nvidia / intel GPU para laptop powersaving) então eu instalei o principal:
sudo apt install nvidia-prime e defina o GPU correto via nvidia-settings (estava na Intel)
e reiniciei novamente e tudo funcionou muito bem! Jogo correu muito bem!