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Dell Latitude E7440 CPU Speed Capped After Sleep

Can you please try to duplicate with a vanilla upstream kernel and send me the exact duplication steps? Regardless, does it actually matter for the discussion? Results 1 to 4 of 4 Thread: Dell E7440 cpu slow after resume when running on batteries, ok on charger Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Status: CLOSED UNREPRODUCIBLE Alias: None Product: Power Management Classification: Unclassified Component: intel_pstate (show other bugs) Hardware: Intel Linux Importance: P1 normal Assignee: Chen Yu URL: Keywords: Depends on: Blocks: Reported: weblink

I issued the following: m4600 intel_pstate # echo 99 >> max_perf_pct // waited a few seconds and then m4600 intel_pstate # echo 100 >> max_perf_pct Surprising, now my max frequency is... When you have the CPU in the locked up condition and the working can you run the command rdmsr -x -a 0x199 Turning off turbo in the BIOS is probably not This might get uncomfortable in places where ambient temperature is more than normal. Comment 65 Doug Smythies 2015-05-17 17:32:20 UTC (In reply to Piotr Kołaczkowski from comment #63) > Fresh reboot, immediately after logging into the graphical session, I issued > the following commands: look at this site

Close close window If the Adobe Reader does not appear when you click on a link for a PDF file, you can download Adobe Reader from the Adobe web site. Upon resume, only CPU 0 comes back on-line. How it gets restored after suspend I do not know. I managed to get a creenshot of i7z, though.

forever... It’s able to maintain silence for typing input while online but the fan kicks in as soon as any heavy web activity is done. So far, after more than 10 suspends/resumes, both on AC or battery, everything works fine including turbo-boost (frequencies go above 2.4 GHz under load, so it must be kicking in). Comment 38 Doug Smythies 2015-05-12 07:40:14 UTC @Piotr: Could you please supply a little additional information: Both before and after suspend, the output from: cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor cat /sys/devices/system/cpu/intel_pstate/no_turbo cat /sys/devices/system/cpu/intel_pstate/max_perf_pct cat

Fresh boot on AC: pkolaczk@m4600 ~ $ cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor powersave powersave powersave powersave powersave powersave powersave powersave pkolaczk@m4600 ~ $ cat /sys/devices/system/cpu/intel_pstate/no_turbo 0 pkolaczk@m4600 ~ $ cat /sys/devices/system/cpu/intel_pstate/max_perf_pct 100 pkolaczk@m4600 ~ Somewhere and sometime > ago, > > > I mentioned one method. Comment 44 Doug Smythies 2015-05-12 21:44:05 UTC (In reply to Piotr Kołaczkowski from comment #42) > If you give me some hints how to get linux-tools installed on my system, I However, when the laptop goes into that "wrong" state, it becomes very repeatable: maximums are 2.4 GHz on AC and 1.8 GHz on battery and it remembers its state until the

Comment 43 Piotr Kołaczkowski 2015-05-12 20:04:38 UTC I recall having problems similar to that with some much earlier kernels < 3.10, which didn't use intel_pstate. Wi-Fi off would increase that to over 4hrs. Comment 62 Piotr Kołaczkowski 2015-05-17 17:04:04 UTC > Are you comfortable compiling the kernel? We got hands-on with the Lenovo Yoga at CES 2012 and exactly one year later it’s in our hands for review. [Follow closely for teasers of 3rd generation Ultrabooks next week

Read the rest of this entry » 5 Comments MSI S20 Slidebook Now Shipping Posted by Steve Chippy Paine in News on December 23, 2012 In my regular check of availability With speedstep disabled, turbo doesn't kick after a suspend/resume cycle, either. If you see the lock up at low frequency again could you do the same thing. Select options to continue.

Here's the output from the earlier grep command: affected_cpus:0 cpuinfo_cur_freq:801250 cpuinfo_max_freq:2900000 cpuinfo_min_freq:800000 cpuinfo_transition_latency:4294967295 related_cpus:0 scaling_available_governors:performance powersave scaling_driver:intel_pstate scaling_governor:performance scaling_max_freq:2900000 scaling_min_freq:800000 scaling_setspeed: In case it's relevant, I do have this in the have a peek at these guys Samsung 840 EVO mSATA SSDFor Ultra-Thin Laptops and Desktop PCs with an mSATA Port Capacity 120GB 250GB 500GB 1TB Model # MZ-MTE120BW MZ-MTE250BW MZ-MTE500BW MZ-MTE1T0BW Form Factor mSATA Interface SATA III I think you mean all cpu' will NOT be locked...? I'm using hp.

It might be time to acquire some trace data, but a patch (attachment 169891 [details]) is needed. Downscaling and locking frequency to 800 MHz never happens when I load the laptop heavily with multithreaded tasks - if I do it when the bug is not effective and full Turboboost was working fresh after reboot. check over here Addendum 2: Same as of Kernel 4.1RC4.

Joule Counter Range, at 45 Watts cpu0: MSR_NHM_PLATFORM_INFO: 0x80060011800 8 * 100 = 800 MHz max efficiency 24 * 100 = 2400 MHz TSC frequency cpu0: MSR_IA32_POWER_CTL: 0x0004005d (C1E auto-promotion: DISabled) I've got the kernel option "processor.ignore_ppc=1" set, which I used to have to use when I had a Dell E6420 and used a small/portable underpowered charger, otherwise the BIOS would force Laptop hangs after sleep mode [Solved] … دوشنبه ۲۴ خرداد ۱۳۹۵ , 85 بازدید Peace upon you i have precesion m4600 i7 4G ram HDD1T with 2G N vidia gforce 1000m

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It seems that your machine goes into a mode to conserve battery when it awakes from suspend. Is there some special ppa where I an install it > from, or can I get the sources somewhere and compile? Please add "[email protected]" to your address book to ensure delivery. I am using an official Dell charger, and the laptop is happy with that, charging the four cell battery at a decent rate (1% per minute), and run time on batteries

The strong Wi-Fi, great touchpad and upgrade features add to the overall package for budget-conscious customers. I didn't dig into it much, but here is what I did get: In this case, the intel_pstate driver never calculates that the target pstate need to increase). I tried, and confirm, Dirk's patch (version 2). this content So current issue became intel_pstate doesn't kick turbo and Cc Dirk.

Here's the output from the grep command: affected_cpus:0 cpuinfo_cur_freq:799921 cpuinfo_max_freq:2900000 cpuinfo_min_freq:800000 cpuinfo_transition_latency:4294967295 related_cpus:0 scaling_available_governors:performance powersave scaling_driver:intel_pstate scaling_governor:powersave scaling_max_freq:2900000 scaling_min_freq:800000 scaling_setspeed: Comment 15 Clemens Eisserer 2014-01-09 23:21:43 UTC Same here, after suspend Perhaps I should have said "locked at whatever pstate they were in when the command was issued". These are potentially significant: > cpu0: MSR_IA32_ENERGY_PERF_BIAS: 0x00000006 (balanced) > cpu0: MSR_IA32_ENERGY_PERF_BIAS: 0x00000000 (performance) > cpu0: MSR_IA32_POWER_CTL: 0x0004005d (C1E auto-promotion: DISabled) > cpu0: MSR_IA32_POWER_CTL: 0x0004005f (C1E auto-promotion: ENabled) Are you comfortable Sounds fun.

Are you somehow using the performance mode governor now? Comment 25 Doug Smythies 2014-06-04 22:22:23 UTC (In reply to Dirk Brandewie from comment #24) > (In reply to Doug Smythies from comment #23) ... > > Example: Turbo off in Anti-Spam Validation Submit ► Rating:5/5 (31) Purchases from these Sellers are generally covered under our Newegg Marketplace Guarantee. apply three Ubuntu patches from ppa/mainline, for 4.0.3 kernel version 2b.

Please enter a valid email address. Most customers receive within 2-10 days. We'll only use your email to contact you What's your question?(0/500) This field is required. I'm writing this from my new kernel.