Bug 14609

Summary: Laptop panel output blinks randomly (zoomed in screen)
Product: xorg Reporter: Konstantin Svist <fry.kun>
Component: Driver/radeonhdAssignee: Konstantin Svist <fry.kun>
Status: RESOLVED INVALID QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:

Description Konstantin Svist 2008-02-21 13:50:56 UTC 
For some reason my laptop panel randomly (with time intervals generally in the order of days) blinks for a moment, and right away goes back to normal.

The problem appears with both fglrx and radeonhd.

The different content appears and disappears very fast (I'd say a single frame/screen refresh), and there doesn't seem to be any screen corruption before or after it.
After seeing it for a while (a year?), I've started noticing a pattern: when it happens while I'm looking to the side (external monitor), I notice shapes that look a lot like zoomed in text -- so I suspect that the blink is actually a zoomed-in version of the screen.

I think I've heard similar symptoms mentioned in passing before, but I can't rule out a hardware failure (as this only seems to happen on panel, never on the external monitor)

The laptop in question is Dell Inspiron E1505
Comment 1 Egbert Eich 2008-03-31 08:50:53 UTC 
A fix has been committed recently which disables the scaler engine. Do you still see this with the latest GIT sources?
Please reassign back to the default maintainer when done, thanks!
Comment 2 Luc Verhaegen 2008-05-19 15:11:40 UTC 
No reply from user.

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