Disable power management

Hi,
I have an Arch install running no X. I want to disable the blank screen that turns on after 15 minutes of no keyboard interaction.
Can I just disable the power management module?
Thanks.

carlocci wrote:xset -dpms ?
You might also want to check for the Monitor section of the xorg.conf man page
Those work in X, but AP81 wasn't running X.
I have used "setterm" to change power managment settings. Maybe this will help: "setterm -powersave off"

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Disabling power management on wireless nic

Hi,
Is it possible to disable the power management/power save mode for the wireless nic in os x? In ubuntu, it can be done using iwconfig (ex. iwconfig wlan0 power off )
Thanks.

True, the connection doesnt get lost, but the Cisco Lightweight Access Points recognise the Macbook has dropped into a Low power/Power management state after a few minutes of no network activity. A show client on the console of the WLAN controller shows the client has dropped into a power management state after a few minutes of inactivity, not inactivity on the machine, but network inactivity.
WLANCONTROLLER#>show client detailX.X.X
Client MAC Address............................... X.X.X.X
Client Username ................................. XXXXX
AP MAC Address................................... X:X:X:X:X
AP Name.......................................... AP_XX
Client State..................................... Associated
Client NAC OOB State............................. Access
Wireless LAN Id.................................. 2
BSSID............................................ X:X:X:X
Connected For ................................... 350 secs
Channel.......................................... 161
IP Address....................................... X.X.X.X
Association Id................................... 6
Authentication Algorithm......................... Open System
Reason Code...................................... 1
Status Code...................................... 0
Client CCX version............................... No CCX support
Re-Authentication Timeout........................ 82958
Mirroring........................................ Disabled
QoS Level........................................ Silver
802.1P Priority Tag.............................. disabled
WMM Support...................................... Enabled
Power Save....................................... ON
Current Rate..................................... m15
This is enough to force a full re-auth of the client
Apple clients dont support Cisco CCX extensions so Key Caching cant occur, and full re-auth is required, which can cause client to lose connection.
If the client could be forced to keep the WLAN card active when the macbook is on there would be no issue. Seeing as OSX is based on linux, one would assume this would be a possibility to have this available as an option, even if it doesnt exist currently surely it isnt a limitation of the hardware, merely the OS.

Static power management

Hello,
I have a hard time setting up Arch Linux with correct power management. Most software, guides, etc. assume you want to disable power management when you are docked. I want to have the most power conserving state regardless of whether I'm on AC or not (actually, I'm setting a Laptop and a Desktop). Then there's the issue that some software resets dirty_writeback_centisecs and I couldn't figure out which one. I'm currently trying to set up stuff with /etc/rc.local, but some settings don't have any effect, some are lost after suspend.
What software is doing stuff that I didn't tell it to do?
What is your best practices for power managment?
Thanks,
CC

I use laptop-mode-tools. It allows you to have a set up with AC the same as battery (not by default, but that can be changed). I believe the wiki for it discusses some of the settings, and the files for manipulating it are well documented as well.

Can't disable auto screen brightness on M92z even after using power manager

I find the auto screen brightness annoying and have been trying to disable it. When I go into power manager and turn off "auto" it works, but once I reboot, it's back on again.
I've gone into the sensor section of power manager and disabled the sensor but that too does not stick. I've also checked that "magic brightness" setting as well. Nothing seems to stick after a reboot. Things work until I reboot.
I have installed the latest power manager, but 2 things seem strange. website says latest version is 3.40.0002 but when download and install that version it reports 3.40.0001 (notice the 1 vs the 2). Also in control panel it says power manager 32 bit but my OS is Windows 7 64 bit.
Roveer

Alright, so this is ridiculous. Back to square one with nothing booting. I managed to get it booted up once fully, and another time booted off the OS10.3 disc (froze during disk repair in Disk Utility).
I don't have another hard drive to try, and I've taken it apart and reset everything.
Any ideas?

Disabling "CPU Power Management" through BIOS -- any bad consequences?

Ok, so my new T440S is emitting a most annoying high-pitched noise. After doing some research, I come to the conclusion that it is the so called CPU Whine.
According to the diagnostics provided on this page:
http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/T510-T410-W510-ThinkPad-high-pitched-whine/...
Disabling CPU Power Management may silence the noise - as a diagnotic measure, not a solution (as the post asks the user to contact Lenovo support for assistance).
So I tried that and indeed it silences the annoying whine. I have already contacted Lenovo and they said they will get back to me after Christmas. Meanwhille, I am still using this computer, and I am keeping the setting for CPU Power Management Disabled, until Lenovo solves the noise problem.
I was wondering if this (keeping the CPU Power Management disabled) may have some bad consequences - like melting some parts down or something. Would anyone know?
Thanks!

Hi yinslaptop!
I have good news. I have the same problem. My T440s is completely quiet at 43 °C CPU so I don't need any fans to spin. However there is a slight buzz coming out of the middle of the laptop. And it isn't coming from the speakers nor the fan. I didn't bother to open it up yet and check what is causing that noise, but I guess it's related to some coil whine or voltage leakage. As in your case, when I turn off the CPU Power Management option in the BIOS, the sound dissapears completely.
HOWEVER I conicidentally put one SD Card Adapter into the Card Slot and the sound completely dissapeared. I would say give it a try. Sadly the sound comes back in 20 seconds at my machine, but I am using a Sd card adapter with no card in there. Maybe this will change when I put one in. Have to test, because I don't have one lying around.
Lenovo has done a great job. You could to better at this price range, especially when the pc market is shrinking .. it's survival of the fittest. You will see what I mean when you won't get foothold in US and Europe anymore and only will supply Asia.
You won't probably answer this thread and when you do "awww yes, we are deeply sorry, some level buzz is completely normal" CTRL+V bull**bleep**.
Don't get me wrong. I really like the new T440s as my first ThinkPad, but my high order of quality wasn't meet. However I still bought it, because I needed one laptop with really good battery life, good screen and small footprint. Well sorry for the rant.

Idle power management features on processor disabled due to a firmware problem - after BIOS update

Hi,
I did a BIOS upgrade on my E20 - 4220-CTO to 5JKT55A and I started seeing these messages in my System Event log ->
"Idle power management features on processor 0 in group 0 are disabled due to a firmware problem. Check with the computer manufacturer for updated firmware."
"Idle power management features on processor 1 in group 0 are disabled due to a firmware problem. Check with the computer manufacturer for updated firmware."
"Idle power management features on processor 2 in group 0 are disabled due to a firmware problem. Check with the computer manufacturer for updated firmware."
"Idle power management features on processor 3 in group 0 are disabled due to a firmware problem. Check with the computer manufacturer for updated firmware."
The messages occur on each reboot.
I upgraded to the latest bios 5JKT56A and I get the same messages.
I was not getting these error messages on BIOS level 5JKT47A(ship from lenovo with this level).
I updated my BIOS as it was suggested on the lenovo site before doing the win7 SP1 update. Note - I got the error before and after the SP1 update so it's not related to SP1.
I have not see any additional issues, just the messages in the event log on each boot.
Any ideas?
Thanks in Advance!

5JKT58A is the current E20 BIOS. have you tried it yet?
http://support.lenovo.com/en_US/downloads/detail.page?&LegacyDocID=MIGR-74761
ThinkStation C20
ThinkPad X1C · X220 · X60T · s30 · 600

Thinkpad yoga S1 Power Managment driver disabled

Hi,
I have since a few days my Power managment driver which doesn't recognize the battery any more.
I have checked in the Windows Device Manager, which says: "Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. (Code 19)"
Do you know where does the problem come from?
Can it be related to a very recent Windows update I have made? (I'm on Windows 8.1)
Thanks in advance.
Solved!
Go to Solution.

Problem solved by reinstalling the driver.

X61s: which power managment system should I use and disable?

i have a 7666-AH5 x61s vista business. to reduce the vcore and improve batt life i've resorted to using rightmark cpu utility to undervolt the cpu,.
which system or software should i use to manage the power settings? so far there are 3 of such softwares, rightmark's performance profile, thinkpad power manager's or vista's power settings ?
Moderator note: Type added to subject line for clarity.
Message Edited by Agotthelf on 21-04-2009 09:15 AM
x61s.
7666-AH5

Hi,
Welcome to the forum.
Lenovo reference on entend battery life.
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-50944#Battmm
Have a nice day!

Disabling "Beep till the action is completed" in Power Manager

Hi,
I selected the the "beep till the action is completed" checkbox when the lid is closed, and the continuous beeping is starting to annoy me now. I was looking through the on-system help that comes with Power Manager (v3.01a) and it doesn't say how to undo the change. I would like to revert back to the default single beep when the lid is closed.
Any help would be appreciated, thanks.
ThinkPad T400 2767-RV8 Win7 Ultimate x64, ThinkPad T61 7659-AB5 Win7 Home Premium x64

hey tuna91,
that's a bit strange, could you uninstall the 3.64 version and then install version 3.62 which is located below and see if the option returns ?
http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/8ru410ww.exe
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Disable messages from power manager.

Hi
is there a setting to turn off the messages from the energy manager? ... I already know that device power management is enabled. There is no need to remind me of that ...It's really getting on my nerves!
Regards

Hi,
from your dercription I'm not that sure, what exactly is the message, that you are describing.
Can you tell me, what version of Power Manager are you using and what is the message about?
It's only a shoot into dark, but maybe you are looking for following option:
- open Power Manager GUI
- go to Advanced mode
- click the Battery tab
- on the right site click on Battery Maintenance...
- in the new Battery Manitanance window uncheck the option, that you can see down "Periodically show messages about battery charge capacity"
Let me know if that helps. If not, I assume a detailed description would be appreciated.
Rgrds

My solution (or so I thought) to Power Manager/CPU throttling problems!!!

I have found a solution to all my Power Manager/CPU throttling problems!!! Though there is some good and bad news.
{EDIT: The problem has NOT been fixed, even after latest PowerManager (3.62) and BIOS (1.30) versions. Pretty much ignore anything I say below as the problem is still occurring. You can see my full post here: http://forum.lenovo.com/t5/W-Series-ThinkPad-Laptops/W520-Speedstep-not-working-properly-on-battery-...}
Good news: I have NONE of the throttling issues or inconsistent CPU frequency problems I was having before on AC or battery power. Everything, including TurboBoost on battery works! It is completely fixed! (I have no idea how this factors into Lenovo’s statements that TurboBoost is disabled on battery “by design”. There is at least one other post from someone else that also reported TurboBoost was working for them on battery)
Bad news: I don’t really know which one of the many things I tried actually worked. I am sorry I wasn’t more methodical about recording what I did and checking results, but this was my last ditch effort to get this fixed on my own without sending the system in for repair and frankly, I didn’t think it would work. Now that it has worked, I’m hoping my steps can help others.
For anyone interested, here’s what I did… and before anyone says something like “That has nothing to do with managing power/cpu, why would that help?!… etc., please keep in mind I’m just stating exactly what I did. I am aware some of the steps may not be relevant, but who knows… We all know how weird PC’s are sometimes, even the smallest, oddest thing may resolve a problem.So anyway, here goes.
**IMPORTANT** Not sure how many noticed, but there was a new version of Power Manager released a few weeks ago, 3.62. The PM driver seems to have stayed the same. That alone could very well be the sole fix, I’m not sure. You may just want to completely remove PM and PM driver and install the latest version before trying any of the steps below.
1)Made a complete system image via Windows built-in backup feature
2)Disable any 3rd party fan/CPU control utilities (Throttlestop, etc). Make sure they are also not going to run at startup or from a scheduled task
3)Remove Power Manager Driver, then remove Power Manager software
4)Reboot to Windows
5)Remove all traces of the Power Manager drivers/software directories (think it was something like C:\readyapps and C:\drivers.) **For some odd reason after I did this, my wireless stopped working but it resolved itself by the time I was done with these steps, strange
6)Reboot
7)Access BIOS and reset all settings to default
8)Boot into Windows, downgrade to BIOS 1.25 [UEFI: 1.25 - 8BET44WW / ECP: 1.14 8AHT32WW ] via the Windows flash utility. I wanted to downgrade all the way back to 1.06, but the software would throw up some error for any version prior to 1.25 and wouldn’t proceed
9)Reboot to Windows; make sure system booted w/ out issues
10)Reboot again, access BIOS, reset to defaults again
11)Shut down system
12)Disconnect AC power. Remove main battery. Access and disconnect system backup (a.k.a CMOS) battery under keyboard. Discharge residual power in the system (there are various ways to do this, but you could just leave the battery disconnected for a few minutes). Visually inspect the system for anything funky…my system had a slightly but noticeably loose CPU/GPU heat sink/fan assembly power connector.
13)Reconnect backup battery.
14)Reconnect AC power but leave main battery disconnected.
15)Power on. Should get a message indicating “checksum error, system time reset” or something like that.
16)Reboot to Windows. Verified still okay.
17)Downloaded latest BIOS version, 1.26. This time I burned the bootable BIOS flash CD instead of running it through Windows.
18)Restart and boot from disc, flash BIOS to 1.26. Once complete, restart. Verify BIOS set to defaults.
19)Boot back into Windows.
20)Install latest Power Manager driver (1.62 ), reboot if/as prompted. Install Power Manager (3.62), reboot as prompted.
21)Boot into Windows, verified Power Manager was active and working. Verified TurboBoost was working. Restarted system a few times and played around with Power Manager for a bit to see if the different power plans worked and retained the settings, all the while monitoring the Intel TurboBoost utility and PM’s own “power gauges”. Let system Sleep, changed power sources, resumed, etc. Everything was working great.
22)Shutdown, reconnect main battery. Booted into Windows. Again, fiddled with Power Manager for a bit, switching between power plans and AC/battery power. Still worked great.
23)Success!
That’s it. Again, this is not a guaranteed fix guide. These are just simply the steps that I took on my system that resolved the problems many of us are having. Hopefully it will work for others.
T520 4239-CTO | i5 2410M
W520 4270-CTO | 2720QM | 16GB RAM | Quadro 1000M | BIOS 1.30 | PwrMgr 3.62

All I basically did was download and install...
(Chipset driver) http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/oss924ww.exe
(PM driver) http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/83ku14ww.exe
Now, I did chipset first (didnt ask to reboot) then installed the PM driver (did ask to reboot)
I rebooted.... then I went into bios (1.26) and set everything to default... then restarted saving changes...
Since I prefer not using optimus I changed the display settings in bios right after saving the default settings...
Not sure whether or not you really had to go into bios... but everything seems to be working...
My settings in PM is set to Maximum Power in the Advanced tab, 3rd party monitoring tools is TPFanControl and HWInfo64....
W520 (4270 CTO) | i7-2820QM | 16GB RAM 1333 MHz | Runcore MSATA SSD | 2x Kingston SATA2 SSD | Quadro 2000M | FHD | Windows 7

Can't get R&R or Power Manager to work under upgraded Win7 on X61

I recently upgraded my X61 from Win Vista Business to Win7 Pro. While doing so I installed the new and supposedly Windows 7 compatible versions of R&R and Power Manager. However, I can't seem to get either to work - I can't even start the applications. Both immediately crash and tell me that "Lenovo Application has stopped working" (R&R) and "Power Manager has stopped working." I do get the power gauge in the task bar, but I cannot click it (same error/crash).
I followed the instructions and have therefore updated all the applicable drivers etc, e.g. the new version of CSS for R&R and the Power Management Driver for Power Manager, but it still doesn't work. I've also tried reinstalling (both uninstall followed by install and repair/reinstall). Does anybody know what's going on? What could be wrong?
Is anybody else experiencing the same [kind of] problem? Are there any solutions?
Thanks!
Per Bylund
Solved!
Go to Solution.

I believe I've found the reason for the problem I had with both R&R and the Power Manager (also discussed here): I did not have .NET framework 3.5.1 SP 1 installed. It is obviously disabled by default on Win7, so one will have to enable it through Control Panel -> Uninstall a program -> Turn Windows features on or off (and then make sure to check the Microsoft .NET Framework 3.5.1 check box).
The strange thing is that I have not found the information that .NET framework is required anywhere - Lenovo obviously didn't think of supplying it. I just happened to find the solution when installing the upgrade for the Lenovo Toolbox, which could not be finished without first installing the framework (and the Toolbox installation program told me this was required).
So make sure you have the .NET framework enabled if you want to run a bunch of the ThinkVantage applications!
Per Bylund

Xfce4-power-manager and laptop-mode-tools + backlight problems.

Cross posted from here: https://bbs.archlinux.org/viewtopic.php?id=127992
I don't know which forum it belongs to, so maybe a mod can close the one in the wrong forum.
Out of curiosity, do these two tools conflict with each other? There seems to be some features that do the same thing, ie harddrive spin down time, but I'm not sure if these two will try to kill each other trying to configure the same power settings. If they do conflict, how could I go about disabling the conflicting parts (on either)? laptop-mode-tools claims it needs acpid "for ACPI support", however, acpid seems to be grabbing the standby event and throwing the laptop in standby despite the standby button bound to do nothing in xfce-power-manager. If I take out acpid, does that mean laptop-mode will no longer detect acpi events such as connecting/disconnecting AC power and thus not change modes when its plugged in?
Another problem I've had after installing xfce4-power-manager is that when I use the brightness hotkeys the backlight gets stuck and starts flashing, locking up the system until I force shutdown. However, I can use the brightness plugin without trouble at all. What's causing the power manager to screw up setting the brightness since it clearly seems to work otherwise.

It is easier to close this one and move the other thread over here. Just continue there.
BTW better use the Report button when you want to have a thread of yours moved to another forum. That way it is guaranteed a mod will see this in time. And you never need to cross post.

How do I get the power manager settings to take hold? And stay that way?

I want to have my computer awake while on the battery and while I'm driving my car. To reduce distraction, I want to have the lid closed.
In order to make this mode easy to get to, I created a new power plan that has the "lid-closed" event result in "do nothing". Sometimes, this works. Sometimes, the computer goes to sleep. It is exceedingly annoying when the computer goes to sleep because I will get to my destination 45 minutes later and find that the computer didn't do what I wanted.
I've also noticed that the setting for "do nothing" sometimes bleeds over to other power plans. This is also a problem because, under ordinary situations, I would like my computer to behave normally.
Here's a summary of the situation:
1. I've disabled the "apply the settings to all power plans" button.
2. I've created a new power plan called "Logging" that should stay awake when the lid is closed. This power plan will sleep after 65 minutes and hibernate 10 minutes after that (on battery).
3. This plan stays awake sometimes, but not other times. At this instant, sitting in my living room, it refuses to stay awake. Oops, just tried it and now it works (a little consistency here would be nice).
4. As a case example, this morning the computer behaved as expected: I arrived at my destination and it was still away and logging. This afternoon, I woke it up and started logging, closed the lid, and drove off. Upon reaching my destination, I discovered that the computer went to sleep as soon as the lid was closed.
5. The program I'm running logs data points. When the computer sleeps, data points don't get logged. Therefore, I know the computer is sleeping because, after a long logging session (45 minutes), there will only be a few seconds of data points (which correspond to the amount of time it takes to close the lid). If the computer goes to sleep after 10 minutes or 30 minutes, there would be many more data points.
6. When the computer hibernates or sleeps, it seems to remove whatever change I last put into the plan. Even so, the plan still "says" that the change is there.
Ultimately, the difficulty here is that I can't predict what the computer is going to do. If I could, then I could adjust my use pattern.

Try this:
Go into Power Manager, choose the Logging profile.
Go into Windows' Power Options, choose a different profile, then switch back to the Logging profile.
See if this clears any contradiction between the two.
W520: i7-2720QM, Q2000M at 1080/688/1376, 21GB RAM, 500GB + 750GB HDD, FHD screen
X61T: L7500, 3GB RAM, 500GB HDD, XGA screen, Ultrabase
Y3P: 5Y70, 8GB RAM, 256GB SSD, QHD+ screen

W520 "dismounts" monitor on DisplayPort when power management switches it off

My setup:
W520
Mini Dock Plus Series 3
External 1080p display on DVI
External 1440p display on DisplayPort (primary display)
The problem I'm experiencing is that the external display on the DisplayPort gets dismounted (I can hear the Windows "hardware disconnected" sound when this occurs) when the power management triggers the screens to switch off. I can also trigger it by locking the screen (WinKey+L) and manually powering off the displays (FN+F3).
This is extremely annoying as it causes all of the Windows I have open to lose their size and position, and force into the primary display. Windows also needs to regenerate the Aero previews (their just blank boxes until I focus the program window).
This did not occur previously when I had two external displays connected using the DVI ports. But, I can't connect the 1440p display to DVI because DVI cannot drive a resolution that high.
For now, I've worked around it by disabling the display timeouts in power management, but I would like to have the screens switch off after a few minutes to conserve power and lifespan.
From what I can tell, this problem isn't limited to W520's and may be a larger issue with the DisplayPort standard or particular implementation. What can I do about this?

Update your NVIDIA drivers?
Does this workaround help?
https://sites.google.com/site/ebobster/stuff/displayportblanking
W520: i7-2720QM, Q2000M at 1080/688/1376, 21GB RAM, 500GB + 750GB HDD, FHD screen
X61T: L7500, 3GB RAM, 500GB HDD, XGA screen, Ultrabase
Y3P: 5Y70, 8GB RAM, 256GB SSD, QHD+ screen

Disable power management

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