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X301 screen/graphics bug
Posted: Sun Dec 21, 2008 5:05 am
by mou
Hi, I'm having some trouble with my X301 display... Several days ago it began to show severe screen distortion/flickering when unplugged from AC-power (see video). The distortion only occurs sporadically and disappears once I connect it to AC again, leaving some marks on the GUI behind. I have no idea what could be the cause of this, any help greatly appreciated...
http://www.youtube.com/watch?v=y6FNk4FH3Ik
(sorry for compression artifacts...)
similar (?):
http://www.youtube.com/watch?v=8toGfqUtH3Q
img]
http://www.moerd.org/distort2.jpg[/img]
img]
http://www.moerd.org/dist.jpg[/img]
Note from Admin: No pic warning = no pics.
Posted: Sun Dec 21, 2008 10:51 am
by bluewale
Lenovo just released a new intel video driver. In the release note, they mentioned something similar to what you experienced. We may want to give it a try. You may have to go to lenovo's website to download the driver directly. My X301 has no problem so far. If the new driver does not solve the problem, I recommend calling Lenovo to have the machine checked. My X60T used to have screen flickering and they fixed it promptly. Good luck!
Posted: Sun Dec 21, 2008 2:02 pm
by mou
ouh, I'm sorry about the pics...
Thanks for that hint bluewale - I must have missed the new video drivers when I downloaded the latest BIOS yesterday. Unfortunately they don't solve the problem for me
Posted: Sun Dec 21, 2008 9:09 pm
by bluewale
I saw the picture. It seems severe. I think it is more likely a hardware problem, maybe the LCD converter. I had similar problems with my X60T, but not that bad. You should call Lenovo tech support to have your machine serviced.
Posted: Sun Dec 21, 2008 10:18 pm
by sparta.rising
Looks like a GPU issue to me, not LCD
Posted: Sun Dec 21, 2008 10:24 pm
by mou
Still I find it weird that it only happens while on battery power - at the moment I'm trying to reproduce it with Intel graphics power management turned off...
Posted: Mon Dec 22, 2008 4:21 pm
by mou
Okay, it seems that disabling the "Intel Smart 2D Display Technology" (whatever that is) setting at the power feature tab for the graphics driver "solves" the problem. I only hope this is a software/driver issue and not caused by an underlying hardware problem...
Posted: Mon Dec 22, 2008 5:47 pm
by bluewale
mou wrote:Okay, it seems that disabling the "Intel Smart 2D Display Technology" ...
Could you tell me where I can find the "intel Smart 2D..." thing? thanks.
Posted: Tue Dec 23, 2008 4:04 am
by mou
Sure: just right click on that Intel Graphics icon in the systray, then properties - display settings - power settings - modify settings and you got all kinds of different power saving stuff there.
