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Old 11-10-2013, 03:00 AM   #1
Registered: Sep 2012
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Screen flickers with Debian 7 (wheezy) on sony vaio x (GMA500)

I've installed debian wheezy (stable) on my soy vaio x (which runs a GMA500 display chipset).

The driver being loaded is gma500_gfx. the problem I'm having is that the screen randomly flickers (goes black) for a second or so, every minute or.

Any suggestions how to solve this? the laptop is unusable in this manner.

Old 11-11-2013, 04:10 PM   #2
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When that was happening on my HP desktop PC (Nvidia 9100 onboard graphics), it was because my Soyo monitor does not emit a proper EDID, and every time the message indicating such was emitted, the screen would flicker in a manner similar to what you're describing. Until the nouveau driver was fixed, I used the Nvidia driver
Old 11-12-2013, 03:53 AM   #3
Registered: Sep 2012
Posts: 78

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The workaround I've found is to blacklist the gma500_gfx module.

The screen doesnt go black now, but graphics updates are very slow.

Cant say I'm happy with Debian :-(


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