我正在使用 Zoom，這些訊息在我的筆記型電腦的 /var/log/syslog 上彈出。我在 Lenovo Thinkpad X220i 上使用 Ubuntu 19.10。我的核心版本是：5.3.0-42-generic
Mar 16 14:45:07 a thermald[617]: [WARN]sysfs write failed /sys/devices/virtual/powercap/intel-rapl/intel-rapl:0/enabled
Mar 16 14:45:07 a kernel: [18300.593089] powercap intel-rapl:0: package locked by BIOS, monitoring only
Mar 16 14:45:07 a thermald[617]: [WARN]sysfs write failed /sys/devices/virtual/powercap/intel-rapl/intel-rapl:0/constraint_0_power_limit_uw
Mar 16 14:45:12 a kernel: [18305.601751] intel_pstate: Turbo disabled by BIOS or unavailable on processor
Mar 16 14:45:12 a thermald[617]: [WARN]sysfs write failed /sys/devices/system/cpu/intel_pstate//no_turbo
Mar 16 14:45:21 a kernel: [18314.311822] mce: CPU1: Package temperature above threshold, cpu clock throttled (total events = 1)
Mar 16 14:45:21 a kernel: [18314.311826] mce: CPU0: Package temperature above threshold, cpu clock throttled (total events = 1)
Mar 16 14:45:21 a kernel: [18314.311832] mce: CPU2: Package temperature above threshold, cpu clock throttled (total events = 1)
Mar 16 14:45:21 a kernel: [18314.311835] mce: CPU3: Package temperature above threshold, cpu clock throttled (total events = 1)
Mar 16 14:45:21 a kernel: [18314.312809] mce: CPU3: Package temperature/speed normal
Mar 16 14:45:21 a kernel: [18314.312811] mce: CPU1: Package temperature/speed normal
Mar 16 14:45:21 a kernel: [18314.312813] mce: CPU0: Package temperature/speed normal
Mar 16 14:45:21 a kernel: [18314.312814] mce: CPU2: Package temperature/speed normal
Mar 16 14:45:22 a kernel: [18315.618828] intel_powerclamp: Start idle injection to reduce power
Mar 16 14:45:26 a kernel: [18319.812404] NOHZ: local_softirq_pending 01
Mar 16 14:45:27 a kernel: [18320.932256] NOHZ: local_softirq_pending 40
Mar 16 14:45:27 a kernel: [18320.936096] NOHZ: local_softirq_pending 02
Mar 16 14:45:27 a kernel: [18320.940073] NOHZ: local_softirq_pending 02
Mar 16 14:45:27 a kernel: [18320.940286] NOHZ: local_softirq_pending 02
Mar 16 14:45:27 a kernel: [18320.941296] NOHZ: local_softirq_pending 02
Mar 16 14:45:27 a kernel: [18320.942272] NOHZ: local_softirq_pending 02
Mar 16 14:45:27 a kernel: [18320.944073] NOHZ: local_softirq_pending 02
Mar 16 14:45:27 a kernel: [18320.946531] NOHZ: local_softirq_pending 02
Mar 16 14:45:27 a kernel: [18320.948072] NOHZ: local_softirq_pending 02
Mar 16 14:45:44 a kernel: [18337.857079] intel_powerclamp: Stop forced idle injection
Mar 16 14:45:44 a kernel: [18337.857608] intel_pstate: Turbo disabled by BIOS or unavailable on processor
Mar 16 14:45:52 a kernel: [18345.868126] intel_pstate: Turbo disabled by BIOS or unavailable on processor
Mar 16 14:46:02 a kernel: [18355.884437] intel_powerclamp: Start idle injection to reduce power
Mar 16 14:46:52 a kernel: [18406.269403] intel_powerclamp: Stop forced idle injection
Mar 16 14:46:52 a kernel: [18406.270253] intel_pstate: Turbo disabled by BIOS or unavailable on processor
Mar 16 14:46:55 a kernel: [18408.668109] perf: interrupt took too long (8008 > 7948), lowering kernel.perf_event_max_sample_rate to 24750
Mar 16 14:47:05 a kernel: [18418.285694] intel_pstate: Turbo disabled by BIOS or unavailable on processor
Mar 16 14:47:14 a kernel: [18427.302913] intel_powerclamp: Start idle injection to reduce power
Mar 16 14:50:08 a kernel: [18602.262278] perf: interrupt took too long (10329 > 10010), lowering kernel.perf_event_max_sample_rate to 19250
Mar 16 14:47:05 a thermald[617]: message repeated 4 times: [ [WARN]sysfs write failed /sys/devices/system/cpu/intel_pstate//no_turbo]
Mar 16 14:51:27 a dbus-daemon[611]: [system] Activating service name='org.kde.powerdevil.backlighthelper' requested by ':1.66' (uid=1000 pid=1089 comm="/usr/lib/x86_64-linux-gnu/libexec/org_kde_powerdev" label="unconfined") (using servicehelper)
Mar 16 14:51:28 a org.kde.powerdevil.backlighthelper: QDBusArgument: read from a write-only object
Mar 16 14:51:28 a kernel: [18681.550443] intel_powerclamp: Stop forced idle injection
Mar 16 14:51:28 a org.kde.powerdevil.backlighthelper: message repeated 2 times: [ QDBusArgument: read from a write-only object]
Mar 16 14:51:28 a dbus-daemon[611]: [system] Successfully activated service 'org.kde.powerdevil.backlighthelper'
Mar 16 14:51:28 a thermald[617]: [WARN]sysfs write failed /sys/devices/system/cpu/intel_pstate//no_turbo
Mar 16 14:51:28 a kernel: [18681.558076] intel_pstate: Turbo disabled by BIOS or unavailable on processor
Mar 16 14:51:39 a kernel: [18692.630741] intel_pstate: Turbo disabled by BIOS or unavailable on processor
Mar 16 14:51:45 a kernel: [18698.457756] mce: CPU2: Package temperature above threshold, cpu clock throttled (total events = 5677)
Mar 16 14:51:45 a kernel: [18698.457759] mce: CPU1: Package temperature above threshold, cpu clock throttled (total events = 5677)
Mar 16 14:51:45 a kernel: [18698.457762] mce: CPU3: Package temperature above threshold, cpu clock throttled (total events = 5677)
Mar 16 14:51:45 a kernel: [18698.457765] mce: CPU0: Package temperature above threshold, cpu clock throttled (total events = 5677)
Mar 16 14:51:45 a kernel: [18698.458797] mce: CPU1: Package temperature/speed normal
Mar 16 14:51:45 a kernel: [18698.458801] mce: CPU2: Package temperature/speed normal
Mar 16 14:51:45 a kernel: [18698.458804] mce: CPU0: Package temperature/speed normal
Mar 16 14:51:45 a kernel: [18698.458808] mce: CPU3: Package temperature/speed normal
Mar 16 14:51:49 a kernel: [18702.688444] intel_powerclamp: Start idle injection to reduce power
Mar 16 14:52:34 a kernel: [18748.030287] intel_powerclamp: Stop forced idle injection
Mar 16 14:52:34 a kernel: [18748.031053] intel_pstate: Turbo disabled by BIOS or unavailable on processor
Mar 16 14:52:34 a kernel: [18748.185669] perf: interrupt took too long (13118 > 12911), lowering kernel.perf_event_max_sample_rate to 15000
Mar 16 14:52:56 a kernel: [18770.058709] intel_pstate: Turbo disabled by BIOS or unavailable on processor
Mar 16 14:53:06 a kernel: [18780.073443] intel_powerclamp: Start idle injection to reduce power
Mar 16 14:53:18 a kernel: [18792.092764] intel_powerclamp: Stop forced idle injection
Mar 16 14:53:18 a kernel: [18792.093307] intel_pstate: Turbo disabled by BIOS or unavailable on processor
Mar 16 14:53:18 a thermald[617]: message repeated 4 times: [ [WARN]sysfs write failed /sys/devices/system/cpu/intel_pstate//no_turbo]
答案1
我朋友的電腦開始這樣做，他不將其用作筆記型電腦，而是固定連接到電視。它明顯佈滿灰塵，並且正在努力將 CPU 溫度保持在 90-95C 範圍內。他以前吹過灰塵，然後它保持足夠涼爽，不會被注射，所以我確信在他的情況下這就是解決方案。
我知道我正在破壞舊線程，但如果發生這種情況，很可能是冷卻系統中有灰塵。或者，系統在設計上冷卻不足（一些供應商似乎只是喜歡對確實需要風扇的 CPU 進行無風扇設置，或者當溫度足夠高時讓風扇保持低速，應該放棄並稍微加快速度。）