O `indicator-cpufreq` parece não funcionar na 14.10

8

Eu tenho um Dell XPS 12 e acabei de instalar o Ubuntu 14.10 (eliminando completamente a antiga instalação 14.04).

O menu do indicador tem 2 opções Performancee Powersave, dentre as quais eu escolho Performance.

Mas mesmo quando eu tenho energia conectada e executo um compilador e um navegador, as coisas parecem lentas e o ventilador quase nunca se apaga. De fato, o seguinte é a saída de cat /proc/cpuinfo:

processor   : 0
vendor_id   : GenuineIntel
cpu family  : 6
model       : 58
model name  : Intel(R) Core(TM) i7-3667U CPU @ 2.00GHz
stepping    : 9
microcode   : 0x15
cpu MHz     : 1454.785
cache size  : 4096 KB
physical id : 0
siblings    : 4
core id     : 0
cpu cores   : 2
apicid      : 0
initial apicid  : 0
fpu     : yes
fpu_exception   : yes
cpuid level : 13
wp      : yes
flags       : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms
bogomips    : 4988.72
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

processor   : 1
vendor_id   : GenuineIntel
cpu family  : 6
model       : 58
model name  : Intel(R) Core(TM) i7-3667U CPU @ 2.00GHz
stepping    : 9
microcode   : 0x15
cpu MHz     : 902.832
cache size  : 4096 KB
physical id : 0
siblings    : 4
core id     : 0
cpu cores   : 2
apicid      : 1
initial apicid  : 1
fpu     : yes
fpu_exception   : yes
cpuid level : 13
wp      : yes
flags       : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms
bogomips    : 4988.72
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

processor   : 2
vendor_id   : GenuineIntel
cpu family  : 6
model       : 58
model name  : Intel(R) Core(TM) i7-3667U CPU @ 2.00GHz
stepping    : 9
microcode   : 0x15
cpu MHz     : 1026.562
cache size  : 4096 KB
physical id : 0
siblings    : 4
core id     : 1
cpu cores   : 2
apicid      : 2
initial apicid  : 2
fpu     : yes
fpu_exception   : yes
cpuid level : 13
wp      : yes
flags       : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms
bogomips    : 4988.72
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

processor   : 3
vendor_id   : GenuineIntel
cpu family  : 6
model       : 58
model name  : Intel(R) Core(TM) i7-3667U CPU @ 2.00GHz
stepping    : 9
microcode   : 0x15
cpu MHz     : 1000.878
cache size  : 4096 KB
physical id : 0
siblings    : 4
core id     : 1
cpu cores   : 2
apicid      : 3
initial apicid  : 3
fpu     : yes
fpu_exception   : yes
cpuid level : 13
wp      : yes
flags       : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms
bogomips    : 4988.72
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

Eu costumava ser capaz de definir a CPU ao máximo facilmente com este indicador no Ubuntu 14.04 e 13.10. Como faço isso no novo Ubuntu?

Muito Obrigado.

Phil
fonte

Respostas:

11

Você está executando por padrão, o sistema Intel Pstate no Ubuntu 14.10. Para usar o método ACPI mais antigo, você precisa editar o arquivo grub e reiniciar:

Abra um terminal alt+ ctrl+ te digite as seguintes linhas:

sudo cp /etc/default/grub /etc/default/grub.backup

sudo nano /etc/default/grub

No editor Nano, procure a linha que começa com GRUB_CMDLINE_LINUX_DEFAULT No final da linha, adicione intel_pstate=disableA linha inteira agora deve ficar assim

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_pstate=disable"

pressione as teclas ctrl+ opara escrever o arquivo e ctrl+ xpara sair do Nano. Em seguida, no terminal, digite o seguinte comando para atualizar o Grub

sudo update-grub

Agora você deve reiniciar o computador e descobrir que é capaz de definir os governadores como fez no 14.04

Charles Green
fonte
3
Para qualquer pessoa interessada, aqui está a documentação do driver intel_pstate: kernel.org/doc/Documentation/cpu-freq/intel-pstate.txt
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