2016-09-18 15:44 GMT+02:00 Ben Hutchings <b...@decadent.org.uk>: > Control: tag -1 moreinfo > > On Sun, 2016-09-18 at 14:46 +0200, Alessio Gaeta wrote: >> Package: src:linux >> Version: 4.7.2-1+s1 >> Severity: important >> >> Hello, >> >> I'm facing a power issue with the Linux 4.7 kernel. >> >> Every time the system goes idle (the configured delay passes and the display >> goes black), the frequency of all cores get maxed, even if all cores are >> idle. >> >> Evident symptoms are the fan spinning loudly and the errors logged in journal >> stating the thermal threshold being surpassed and the CPU throttled. >> >> In detail, the frequency of all cores raises from ~800 MHz to 2.6 GHz for >> all 8 >> cores of my i7. I can reproduce the behavior 100% of times, by connecting via >> ssh to the affected system and launching powertop. >> >> The issue does not exists in Linux 4.6 (to wich I will stick for now), so I >> guess the problem resides in kernel, not in other packages. >> >> You have all system information here below (gathered by repotbug). Ask any >> further info if needed. Thank you! > [...] > > Please test with bbswitch and acpi_call removed.
Hello, tested again: 1. systemctl stop bumblebeed.service 2. modprobe -r bbswitch 3. modprobe -r acpi_call 4. systemctl stop vboxweb.service 5. modprobe -r vboxpci vboxnetflt vboxnetadp vboxdrv (removed all out-of-tree modules, just to be sure). Same result: on display idle the CPU frequency got maxed on all cores. Tell me if you need more info.
