T43 screen turns off and on with batt only

[davidlg16]

hm... I searched for this but nothing relevant came up

I notice a common occurance with my T43 screen where it turns off for 1 full second and then back on again, almost seems like a long blink.

seems to only happen when I'm using battery power.

usually happens when laptop has been idle for a little bit (5-10 min), then i move the track point (before screen saver even comes on), then it does the long blink, sometimes one after another.

if I leave it idle for even longer so the screen saver comes on, then i move something, and it'll blink too.

I'm using WinXP sp2, with latest version of all IBM drivers. Never experienced this before with my 2378FVU. Very annoying

I always use "maximize battery power" in power manager when using the battery, I noticed under this power theme, it is set to "lower display refresh rate" to "40hz after 3 min". Does this have something to do with it?

anyone else experience this?

[LumberJack]

Well I haven't experience it on my Thinkpad... but at another job I had a Dell that "Blinked" when you switched from battery to AC power and vice versa... Sometimes it wouuld also "redraw" the screen for no reason. I was never able to track down the problem but to me it seemed that the graphics card was the source of the problem.. jsut a thought....

LJ

[sktn77a]

Try turning off the screensaver and all power/battery-conserving settings. If it still happens, then it sounds like a hardware problem.

[greg0815]

I had the same annoying bevavior on my T42, but I was bale to "fix" it, maybe the following steps can solve your problem:

1. left click on the battery condition icon in the taskbar
2. start the battery maximiser assistant
3. click you through the pages until you reach "step 5 Global settings"
4. deactivate the global battery settings (the clickboxes should be in the middle of the page)

please let me know if this solves your problem

[davidlg16]

this problem seems to only occur when my batter is about 25% or less with battery set to "max battery life"

My T43 has "Power manager" in stead of Battery Maximizer on T42s, but I do have a "Global Battery Setting" tab, which has a bunch of options for power management, warning alerts and some other stuff

So I changed the battery setting to "max performance" and this behavior is gone

I guess it's not a hardware issue.

[IR0NMAN]

It's not an hardware problem. It does that to change the LCD brightness ratio/refresh rate in order to match your battery setting

or something like that.