Power management without X.

Hello. I was wondering if anyone knew how to go about setting up power management from the command line? Like adjusting brightness when ac adapter is plugged/unplugged, changing cpu profiles, suspend on lid close, etc. without having to use something like kpowersave and gnome-power-manager.
Any help would be appreciated, thank you.

Is this relevant to your interests?
http://wiki.archlinux.org/index.php/Pm-utils
http://wiki.archlinux.org/index.php/Acpid
http://wiki.archlinux.org/index.php/Cpufreq
http://wiki.archlinux.org/index.php/Laptop
Last edited by spektre (2009-09-09 05:46:46)

Similar Messages

[solved] power management without HAL and pm-utils

hi guys! i got rid of hal and pm-utils, but i'm having some troubles now with the powersaving settings.
i'm using hibernate-script with uswsusp tools to hibernate etc, and laptop-mode-tools with acpi for the power management, but this looks like it isnt working anymore.
for example the screen backlight wont shut down anymore when i close the lid, despite the acpi action scripts are all ok.
far more importantly the cpu fan doen't ever start!! earlier this morning the cpu hit 77°C (while it's normally 40°) but the fan didn't kick in!
what can i do?
EDIT:
wait, maybe it's just the new kernel i've installed this morning! it's some days now that i've uninstalled hal and i think i would have noticed before!
Last edited by v43 (2011-02-23 11:25:10)

disabling laptop-mode-tools temporarily solved the problem. i mean the fan is now spinning free ^^
i'll try reinstalling it or downgrading the kernel later

When comes N200 power manager driver for 7? Hotkeys not working without it.

Hello,
Will be there release for power manager driver for Windows 7?
I did install all drivers, could find under download for 7 and infact, without power manager driver hotkeys (sleep, hibernate) on N200 do not work.
Solved it with installing Vista power manager driver with compatibility mode and bingo, all keys started work and I'm able to sleep/hibernate my laptop.
Why isn't there driver for 7 if without it things do not fully function?

try these : 32 bit - 64 bit or try smart downloading

W500: using the switchable graphics with vista ultimate without the power manager software?

seriously, invest in a new hitachi travelstar 320gb for 49 bucks from that tiger place online and a usb hard drive caddy, pop in your free clonezilla cd and your rescue and recovery problems will be over!
after reading all the problems with that software i figured my data was too valuble to get caught in that mess so for under 75 bucks problem solved and i rid my w500 of that bloatware. even cheaper then ordering the recovery disks from lenovo.
working on getting rid of the rest of the useless software now.
hey question, how do you use the switchable graphics on the w500 with vista ultimate without the power manager software? if you can thats next!!
Moderator note: Question added to subject line for clarity.
Message Edited by Agotthelf on 28-04-2009 08:45 AM

That's because you are asking a T500/W500 question in the Thinkvantage forum. Anyway, the answer to your question is in this thread.
ATI recently started packaging their switchable graphics driver together with their regular Catalyst. So downloading their latest driver Catalyst 9.4 from the ATI/AMD site and then modifying it with the Mobility Modder will allow you to use switchable graphics without the power manager. The little problem is just that the released version of the Mobility Modder stopped working with Catalyst 9.2 and you are on your own getting a modified Modder working on 9.4, see here.
So I decided not to make more work for myself staying on a modded Catalyst 9.1 and for the time being living without switchable graphics.
T500: Vista 32, 2.8GHz, 4GB RAM, 15.4" 1680x1050, 500GB 7200rpm, ATI Radeon HD3650 + Intel 4500MHD. T42: XP, 1.7GHz, 2GB RAM, 14.1" 1024x768, 250GB PATA, ATI Radeon 7500.

How to turn on the wi-fi on x121e without Thinkpad power management driver.

The onscreen function key features generally depend on that driver. The thing is on my netbook the driver causes USB devices to fail after a few hibernations. Anybody in the know? Thanks.

Power Manager is the only software to view wireless device setting.
Install new version of Power Manager and also update the BIOS for the USB issue
Download Power Manager software from the mentioned below web link.
http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/8mu417ww.exe
BIOS update can be download from the mentioned below web link.
http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/8quj08us.exe
Best Regards,
Tanuj
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Life without Lenovo Power Manager: Any thoughts? [battery issue, charging error]

A while back, we discovered the battery maintenance error, where the "stop charging at 90%" feature would cause the battery to only charge partially to like 50% but read that it was fully charged, and then it would turn off early. This was the thread. I know it's a BIOS issue, and I will update eventually, but the partial charge happened to me again, and it got me thinking:
Do I really need the Power Manager?
I use the Power Manager to configure Turbo Boost clock speed and all that, and I suppose the Turbo+ button does crank up the fan, but I can use TPFancontrol to manually control the fan, and I found that Windows power settings by itself allows me to set the clock speed however I want, using a percentage. Setting all the numbers at 45% parks the clockspeed at 1.2GHz, a good compromise for battery life and performance. The best Power Manager can do is to cycle between 700Mhz all the way up to 2.7Ghz, which throws battery life out the window.
So, will I lose anything by just uninstalling Power Manager?

Technically the answer is no, Power Manager is optional. However, it is a good option for Windows 7 users. It does expose more power management to the user than the power settings under Control panel.
Until they release the Windows 8 version and I run it for a few weeks, I won't know what to say about that environment.

Portege M800-107: Power Management & HDD Protection Utility questions!

Hi all,
I own a Toshiba Portege M800-107, I have recently installed windows 7 (ultimate edition), which enhanced my laptop capabilities. The only problems I face are:
1) The Power Management utility, where I have install the required drivers from the official page of Toshiba, the problem is that the Value Added package is installed without the power management. For now I over come the problem by using the power options offered by Windows 7.
2) The most important problem is the HDD Protection Utility which every time I try to install the driver from the official site, it stops the installation with the reason that this "hardware is not supported by this computer"
Apart those problems the laptop is working perfectly and faster.
If any one could assist me with my problems I would be very appreciated.

> 1) The Power Management utility, where I have install the required drivers from the official page of Toshiba, the problem is that the Value Added package is installed without the power management. For now I over come the problem by using the power options offered by Windows 7.
There is no special Power Saver tool for Win 7. The Value added package provides some additional options which you can find in Win 7/Vista power management.
Check this HowTo:
http://forums.computers.toshiba-europe.com/forums/ann.jspa?annID=41
> 2) The most important problem is the HDD Protection Utility which every time I try to install the driver from the official site, it stops the installation with the reason that this "hardware is not supported by this computer"
The HDD Protection Utility using the acceleration sensor built in the computer.
The point is that there are different M800 on the market and possibly your M800 does not support the acceleration sensor. This could be the reason why you cannot install this tool.

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

I have an iMac G4 PowerPC with OS 10.5.? The OS10.5.8 update failed. Now get blue screen and error-can't find Intel Power Manager. What now??

I have an iMac G4 PowerPC with OS 10.5.? After deleting 17G of music files to make room on the 74G drive, The iPhoto and iWeb updates seemed to load okay, but the OS 10.5.8 update failed - message opened said the computer encountered an error and must shut down. Now I get the blue screen. Startup with 'V' pressed shows multiple lines saying: error-can't find IntelCPU Power Manager. What now?? I reset PRAM, I think.....?????

I am concerned that you might have applied a system updated intended for an Intel iMac, while you have a PPC (non-Intel) iMac. Your PPC OS should not be looking for an "IntelCPU Power Manager."
Have you tried booting from the 10.5 install DVD/CD and repairing the hard drive, plus repairing permissions?
If you done the repairs mentioned above, and your problem still persists, you can also try doing a safe boot. (see http://support.apple.com/kb/HT1455 ) Then, if none of these things worked, if I were in your shoes (it's hard to diagnose these things without being there in person) I would first check that there is adequate disk space, then I would boot from the 10.5 DVD/CD install disk and reinstall the operating system. There is an option to do an archive and install preserving user files/settings, that would be the option you want, as it will save your files but install a new OS. Make sure you have a good backup of your files first. If you do not have one, use "target mode" to copy all your files before embarking on an new OS install. Assuming that you do succeed with this install, then use Software Update to get the right updates for your iMac.

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.

Problem with installing power manager

Hello,
I've been trying to install power manager 6.36 without success.
The first setup which installs files into "c:\swtools\readyapps\pwrmgrv" goes well. but when im trying to install Power Manager and click next to install to the destination folder ("Program files (x86)\ThinkPad\Utilities) it freezes.
http://postimage.org/image/4plchblmx/ - freezes here and cant do anything but exit the installation.
After it failed couple times I've been trying to install my original power manager 3.48 but it freezes just like 6.36.
*tried to install it with Manual Install & Silent Install - both failed.
What can I do?

I had the same issue with some sw earlier on my laptop with Win7/64 bit. That sw didn't want to be installed and needed the old .NET vesion. At the same time my system restricted old version .NET environment installtion process from M$ site or from sw installation package as I had up to date .NET. The result was I couldn't avoid that strange behaviour.
x220 | i5-2520m | Intel ssd 320 series | Gobi 2000 3G GPS | WiFi
x220 | i5-2520m | hdd 320 | Intel msata ssd 310 series | 3G GPS | WiFi
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How do I TURN OFF power management???

My computer still keeps going to sleep and the only way to wake it up is to hit the reset button. I tried enabling the keyboard-wake-up to wake it up, but then it started rebooting itself spontaneously every 15 minutes -- without any warning from Windows. It doesn't matter whether I select S1/POS or S3/STR mode -- it does the same thing every time. I don't want S1 or S3 power management. I want to TURN OFF POWER MANAGEMENT COMPLETELY! I only want Windows to turn off the monitor. The BIOS should do nothing!
How do I accomplish this??????????
BIOS v1.3
NEO2-LS
Quickboot - disabled
IDE Busmaster - disabled
ATA mode - native
ATA config - P-ATA only
Performance mode - slow
dynamic overclocking - disabled
S.M.A.R.T. for hd enabled
Power Supply - @Power EP43057 (430W)
HD Western Digital UATA WD800JB
video card - MSI FX5600TD128
512MB Elixir 400 MHz DDR Ram
Lite-On DVDROM
Pentium 4 2.6GHz HT 800MHz

Quote
My computer still keeps going to sleep and the only way to wake it up is to hit the reset button
This is strange - my understanding is you would usually use the Power button to wake the suspended PC...
Could what you are experiencing be more of a shutdown or instability?
Is it due to BIOS setting or Windows? Here are some possibilities
1. What is your selected Power Scheme? Are your options for Turn off hard disks, System standby & System hibernates set to Never?
2. These BIOS settings work fine for me ...
ACPI Standby State : Auto
Power Management/APM : Enabled
Suspend Time Out : Disabled
Set Monitor Events
FDC/LPT/COM Ports : Monitor
Primary Master IDE : Monitor
Primary Slave IDE : Ignore
Secondary Master IDE : Ignore
Secondary Slave IDE : Ignore
Set WakeUp Events
Resume on PME : Disabled
Resume on RTC Alarm : Disabled
Keyboard PowerOn Function : Disabled
Mouse PowerOn Function : Disabled
3. Does your keyboard have any of those quick buttons for Power / Sleep / Wake ? Could any of them be stuck? (Mine has these in a most inconvenient place - between Delete/End/PgDn and arrow keys, so I sometimes accidentally pressed them)

T61P XP/SP3 - Power Manager Problems, Can't save schemes, limited schemes available

Hi All - When I got this -rockin'- laptop originally I could set my own power schemes without problem. Now it won't save my new powerschemes. I try to create one, finish the last step, and then the power scheme isn't in the dropdown. I read somewhere on the Web that this may be related to SP3.
Also, the only Power Schemes I have access to are Video Playback and Maximum Performance. I have tried uninstalling Power Manager and the associated DLL and then reinstalling, but that didn't help. Also, I see no reference to this problem in troubleshooting. Thanks in advance. This is getting really annoying as I like to use as little power as possible since I use teh computer on battery power quite often.
Thanks! g-
Solved!
Go to Solution.

First, don't mark an item solved if it's not solved. Second, learn to search to see if others have had this problem. instead of repeating a post that's been beaten to death. Hint: Lots of us have had the problem .
If you had searched you would have found this link: http://chris.brandlehner.at/Brandlehner/cab_blog.nsf/d6plinks/CBRR-6YWBNV where you will see a possible solution. If it works, you can mark the entry "solved". Good luck.
T520 4239-CTO
T61/p 6459-CTO (Gone but not forgotten)
A31/p XP Pro 1 gig memory
A30/p XP Pro 1 gig memory
TP600 Win 2K 288 mb memory
701C Win 98 Don't ask

Power Management

OK, So I dont really know anything about Power Management, as ive never really cared.
But now that ive been keeping my system on all the time, id like some help getting Standby (sleep) mode working.
If I understand it, this either uses APM or ACPI, its a desktop system, a year old. Which would it use? When I was recompiling my kernel, I noticed APM was enabled, but not ACPI.
Anyway, When pressing the Power button in Windows, it puts the computer into Standby mode. How would I do set this up in Arch?
Also, when powering down, my computer doesnt actually turn itself off. I tried "apm=power-off" in Lilo, from another thread, but it didn't work (just didn't turn off). Actually, I may not have set it up right.
I already have: append="hdd=ide-scsi" , in LILO, so im not sure if I add the line after "hdd=ide-scsi", thats what I did though.
Any help would be appreciated. If its not possible to have it standby on pressing the power button, I could set it up using the Xscreensaver Daemon. That seems to have an option for automatic standby.

sud_crow wrote:
Hi,
just a thought:
# CONFIG_ACPI is not set
CONFIG_APM=y
# CONFIG_APM_IGNORE_USER_SUSPEND is not set
# CONFIG_APM_DO_ENABLE is not set
# CONFIG_APM_CPU_IDLE is not set
# CONFIG_APM_DISPLAY_BLANK is not set
# CONFIG_APM_RTC_IS_GMT is not set
# CONFIG_APM_ALLOW_INTS is not set
# CONFIG_APM_REAL_MODE_POWER_OFF is not set
the "is not set" thing, means (at least is what i think) you didnt compiled the kernel with that niether with a module,
right! if you look at .config by hand ... better use
make menuconfig
#or
make xconfig
to configure your kernel, because then you dont have to wonder for funny "is not set" behind out-commented lines
sud_crow wrote: for what i know, to turn your PC off with an ATX and a ACPI motherboard you need to have the "CONFIG_ACPI" ...
Kernel-docs: ACPI wrote:
CONFIG_ACPI:
ACPI/OSPM support for Linux is currently under development. As such,
this support is preliminary and EXPERIMENTAL. Configuring ACPI
support enables kernel interfaces that allow higher level software
(OSPM) to manipulate ACPI defined hardware and software interfaces,
including the evaluation of ACPI control methods. If unsure, choose
N here. Note, this option will enlarge your kernel by about 120K.
This support requires an ACPI compliant platform (hardware/firmware).
If both ACPI and Advanced Power Management (APM) support are
configured, whichever is loaded first shall be used.
-> it is generally a bad idea to include ACPI and APM both in the kernel, because you then cannot decide whichone is used and which not ...
sud_crow wrote:... and the "CONFIG_APM_REAL_MODE_POWER_OFF" compiled in the kernel or as a module, also i set the CPU_IDLE (powersaving) and the DISPLAY_BLANK, they are both usufull, i think you should read the ´help´ to see if you need the others.
==> here the docs for these "additionals" for APM :
Kernel-docs wrote:
CONFIG_APM_REAL_MODE_POWER_OFF:
Use real mode APM BIOS calls to switch off the computer. This is
a work-around for a number of buggy BIOSes. Switch this option on if
your computer crashes instead of powering off properly.
Kernel-docs wrote:
CONFIG_APM_CPU_IDLE:
Enable calls to APM CPU Idle/CPU Busy inside the kernel's idle loop.
On some machines, this can activate improved power savings, such as
a slowed CPU clock rate, when the machine is idle. These idle calls
are made after the idle loop has run for some length of time (e.g.,
333 mS). On some machines, this will cause a hang at boot time or
whenever the CPU becomes idle. (On machines with more than one CPU,
this option does nothing.)
Kernel-docs wrote:
CONFIG_APM_DISPLAY_BLANK:
Enable console blanking using the APM. Some laptops can use this to
turn off the LCD backlight when the screen blanker of the Linux
virtual console blanks the screen. Note that this is only used by
the virtual console screen blanker, and won't turn off the backlight
when using the X Window system. This also doesn't have anything to
do with your VESA-compliant power-saving monitor. Further, this
option doesn't work for all laptops -- it might not turn off your
backlight at all, or it might print a lot of errors to the console,
especially if you are using gpm.
actually APM should work without --- except you are a special case with a funny bios or something else funny ... then you should consider activating them, but gernerally you dont need them

Power management without X.

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