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The screen FLICKERING is back! (w/BIOS ver 2.01)
Posted: Wed Nov 01, 2006 11:51 am
by RonS
BIOS version 1.09 solved the very annoying screen flickering problem (external display on Advanced Dock's DVI port). But now with version 2.01, the problem has returned.
Every 10-20 minutes, the external screen (and sometimes the built-in internal display, but not nearly as often) changes resolution to somthing like 640x480, and then back again to the correct 1920x1200. It all happens in about 1/10 of a second, causing a flicker on the display.
Posted: Wed Nov 01, 2006 4:01 pm
by GXCross
That's horrible news. As for me, I was never able to solve the flickering problem, so ended up having to return the T60p. I'm looking to get another Thinkpad shortly, but was hoping they'd have fixed the problem by then. Are you going to revert back to the older BIOS?
Posted: Wed Nov 01, 2006 4:06 pm
by own6volvos
Sounds almost like what it looks like when the intel GMA900/950 power saving feature that slows down the refresh rate looks like. the screen momentarily flickers, appears to go down to a lower resolution, and then goes back to normal. disabling the refresh rate lowering for longer battery life made this stop.
Check around the power management settings and ATI control panel for something that relates to refresh rate.
Posted: Wed Nov 01, 2006 9:43 pm
by RonS
I have a T60p with the v5200. Previously, BIOS ver 1.09 fixed the problems. Now with 2.01, it's come back. So I don't think it's a software problem, but a firmware problem.
I tried refresh setting in CCC and the problem remains.
Posted: Thu Nov 02, 2006 12:21 am
by chead
My T43 with the X300 used to do this too. It would drive me crazy sometimes, since I'd catch it out of the corner of my eye, turn to look, and everything would be back to normal..
Posted: Sat Nov 04, 2006 10:53 am
by Kamika007z
RonS wrote:I have a T60p with the v5200. Previously, BIOS ver 1.09 fixed the problems. Now with 2.01, it's come back. So I don't think it's a software problem, but a firmware problem.
I tried refresh setting in CCC and the problem remains.
Seems like IBM/Lenovo did a complete rewrite of the BIOS including better Vista support, but forgot to add the fix for the flickering LCD issue that they had added from 1.09. Perhaps they just built this BIOS from 1.07 as a refence point?
At least that's my guess.
Did you ever try BIOS 1.10?