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Linux - Laptop and Netbook Having a problem installing or configuring Linux on your laptop? Need help running Linux on your netbook? This forum is for you. This forum is for any topics relating to Linux and either traditional laptops or netbooks (such as the Asus EEE PC, Everex CloudBook or MSI Wind).


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Old 03-04-2005, 07:50 AM   #1
Registered: Dec 2004
Location: Washington State, USA
Distribution: Debian Sid
Posts: 128

Rep: Reputation: 16
Rage Mobility M3 Resolution Problems?

I've recently installed linux on my laptop, and everything works well, except something is off with the video. That is, 3D acceleration / DRI work fine, but when I change resolution to anything lower than the LCD's default 1024x768, I get graphical errors. That is, at 800x600, there is a vertical line being drawn down the mid-right hand side of the screen, that sort of looks like fast moving waves, moving back and forth across 3 or so horizontal pixels. It's even worse in 640x480, with two lines, both bigger, again both horizontal. I'm using the open-source ATI driver - driver "ati" - in XF86Config. I'm running Debian, so I don't have X.Org, yet.

My graphics card is an onboard ATI Rage Mobility M3 AGP 2x , and in an attempt to fix it, I thought maybe I should get-edid on my card, but it reports that the call failed, and the data should not be trusted.

Does anyone know what's going on / what I need to do? The card works absolutely perfectly in its native 1024x768. I'd really like to play a couple of fullscreen games, and this appears to be the last thing stopping me :P

Thanks in advance!
Old 03-04-2005, 10:43 AM   #2
Registered: Dec 2004
Location: Washington State, USA
Distribution: Debian Sid
Posts: 128

Original Poster
Rep: Reputation: 16
For what it's worth, I found something on a mailing list : if I go to the lower resolution that normally doesn't work, then hit Function +F8 ( which switches to external monitor mode on my laptop), and then hit it again to switch back, it fixes the screen! Sometimes it doesn't work but usually it does.

So, at least I can get it working now. But I know this isn't a hardware thing, because windows could switch resolution fine on this laptop before I put Debian on it - anyone know why this problem is happening, or how I can fix this in my configuration?
Old 03-20-2005, 05:40 PM   #3
LQ Newbie
Registered: Mar 2005
Distribution: Broad Range
Posts: 3

Rep: Reputation: 0
Blasted ATI

I too am using an ATI Rage Mobility M3, and have the exact same problems. It is most annoying when trying to play TuxRacer, and having this strange screen glitch (on top of the fact that I cannot figure out how to enable 3D Acceleration, so it goes slow anyhow.)

Very frustrating.


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