Vaio Z2 - Display Freeze and System Lock-Up due to Power Management Settings?

[AuVaioVai]

Hi there,

my Vaio Z randomly freezes in various applications. Then the screen may also turn black. In most cases the system reboots itself after black screen, in some cases I even need to hard reboot it manually by pressing and holding the start button.

So far I have no clue what causes those events, nor do I know how to investigate the issue when it shows up again. Ideas are welcome.

To my oppinion it could have something to do with the Power Managemet settings in BIOS and/or Windows not working together as intended. Besides that the Hybrid Graphics System switches modes in order to save energy as well. Checking Vaio Care I found out, that "VAIO Power management has been updated recently - 5.1.1.06180". Another entity?

Maybe there are up to 4 entities that compete with each other. It looks as if they sometimes forget wich one is in charge and finally lose control. Just like in real life. Components are switched off, put on a diet, shut or slowed down. When the CPU for instance needs to be reved up the computer ends up in a bsod.

Can anyone help or share experiences?

[blue13x]

These type of problems many times can be resolved with Windows updates or VAIO updates? Or restore to factory defaults for a clean fresh start.

[AuVaioVai]

Originally Posted by blue13x

These type of problems many times can be resolved with Windows updates or VAIO updates? Or restore to factory defaults for a clean fresh start.

I had to restore my Vaio more than once. Vaio updates and Windows updates are allways up to date. Did it fix the issues? No.

Has anyone tried to disabled automatic power savings modes and set every possible option to max?

An other story: Like many others I had problems with the WWAN disconnecting during short periods of idle. Then I discovered, that I just had to keep the line busy by constantly clicking new links. Finally I kept the line busy by listening to internet-radio and it worked fine. I shared my discoveries on solving problems by wasting bandwidth with various tech guys. After a couple of weeks the problems disappeared as they came - out of the blue. I think our systems are often secretly anesthetized in order to extend battery life. And sometimes it works that fine, they just won't come back...

Could that be the reason?

[fergali]

I have the same issue but only when connected to the PMD (the new Z).
This happens on 2 seperate laptops connected to 2 seperate docks.
Someone else reported they had this problem but fixed it by disabling the power management on the network card - but this hasn't worked for me - still get the random lockups.

The solution I have at the moment is not to use the dock - which is now a very expensive paper weight!

Sony support useless.
All drivers and patches up to date.

These were factory installed builds.

frustrating!

[AuVaioVai]

Originally Posted by fergali

I have the same issue but only when connected to the PMD (the new Z).
This happens on 2 seperate laptops connected to 2 seperate docks.
Someone else reported they had this problem but fixed it by disabling the power management on the network card - but this hasn't worked for me - still get the random lockups.

The solution I have at the moment is not to use the dock - which is now a very expensive paper weight!

Sony support useless.
All drivers and patches up to date.

These were factory installed builds.

frustrating!

Is your Dynamic Hybrid Graphics System usually set to AUTO? What happens, if you connect your Vaio to your Power Media Dock? Does the system change modes and freeze rigt away or does it happen randomly during use? And have you tried to force your graphics controller in STAMINA? Does that fix the issues?

My System works fine since I manually selected STAMINA.

Sony Support? I never ever managed to talk to someone with a technical backgrond.

[beaups]

What is your thermal strategy set at in vaio control center?

[AuVaioVai]

Originally Posted by beaups

What is your thermal strategy set at in vaio control center?

Translated in english it must be something like "Balanced Mode". Its the first option besides "power" and "silent".

Since I have those Problems I have been monitoring system temperatures. I never recognized any problems. But delegating those decisions to the machine? Sounds No-Good. Should I change that setting to Power as well?

[beaups]

^balanced should be fine. Silent causes all sorts of issues.

[Ashers]

^ I always keep my VPC-Z13 in silent mode and never noticed any problems. What issues are you referring to?

[AuVaioVai]

Originally Posted by Ashers

^ I always keep my VPC-Z13 in silent mode and never noticed any problems. What issues are you referring to?

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