01-29-2020, 09:14 AM
(This post was last modified: 01-29-2020, 10:08 AM by moonwalkers.)
Just noticed that on my system (initially installed as a minimal Debian, with no tasks selected) CPUs 4 and 5 are pegged at 2GHz all the time, it's like cpufreq is not aware of them. Haven't yet looked into how to address that (besides removing maxcpus=4 from kernel cmdline), just wanted to bring it up to the community's attention. This fixed frequency would explain why my PBP has been burning through the battery charge compared to the stock OS.
On a bit deeper investigation I stand corrected - CPUs 4 and 5 are controlled by cpufreq, and their frequency does scale down, but despite "ondemand" governor they do seem to be spending most of their time in 2GHz, even when the load is (or at least appears to be) nearly non-existent.
On an unrelated note, it seems that combinations Meta+<cursor key> don't work, I can't even see anything xev. Cursor keys by themselves work, Meta+Fn+<cursor key> (which effectively results in Meta+Home/End/PgUp/PgDn) work, but simple Meta+<cursor key> don't work. I assume that would be an issue with keyboard firmware?
(01-29-2020, 09:14 AM)moonwalkers Wrote: Just noticed that on my system (initially installed as a minimal Debian, with no tasks selected) CPUs 4 and 5 are pegged at 2GHz all the time, it's like cpufreq is not aware of them. Haven't yet looked into how to address that (besides removing maxcpus=4 from kernel cmdline), just wanted to bring it up to the community's attention. This fixed frequency would explain why my PBP has been burning through the battery charge compared to the stock OS.
On a bit deeper investigation I stand corrected - CPUs 4 and 5 are controlled by cpufreq, and their frequency does scale down, but despite "ondemand" governor they do seem to be spending most of their time in 2GHz, even when the load is (or at least appears to be) nearly non-existent.
On an unrelated note, it seems that combinations Meta+<cursor key> don't work, I can't even see anything xev. Cursor keys by themselves work, Meta+Fn+<cursor key> (which effectively results in Meta+Home/End/PgUp/PgDn) work, but simple Meta+<cursor key> don't work. I assume that would be an issue with keyboard firmware?
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