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Linux graphics problem(Click here to view the original thread with full colors/images)
Posted by: Veinman
I have a PC running Mandrake, and lately little green and pink pixels have started showing up all over the screen. At first I thought it might be the monitor, but then I booted it up one day and the pixels were all back to normal.
Then it did it again last night.
The graphics card is a GeForce4 4200. I am a Linux noob so I don't even really know how to update the drivers. I'm not even convinced that it would solve things, and am basically not sure why this problem just started showing up.
Any ideas?
Posted by: Major Disaster
Bah double post 
Posted by: Major Disaster
Looks like the video memory is being changed. It could be overheating, a bad driver, or in the worst case a hardware problem. What driver are you using at the moment, the one that comes with X11 or a nVidia specific one ?
EDIT: try these BIOS settings:
- AGP 2X.
- no Fast Writes.
- 64 or 128 Mb aperture size.
- Video Shadow RAM disabled.
You won't notice the performance loss (if any) and your system will be way more stable.
Posted by: Veinman
Default drivers that Mandrake installed.
I'll have to look at the BIOS.
Posted by: Major Disaster
To find out which driver are you using, you must look into the X config file (name varies, but it should be under /etc/X11). If you see "Standard VGA, SVGA, or "Framebuffer" then you are running one of the builtin drivers (which may have been configured for your card anyway).
Here is me using the SVGA driver because ATI doesn't bother making Linux drivers for the Radeon 7200.
quote:
# **********************************************************************
# Graphics device section
# **********************************************************************
# Any number of graphics device sections may be present
# Standard VGA Device:
Section "Device"
Identifier "Standard VGA"
VendorName "Unknown"
BoardName "Unknown"
# The chipset line is optional in most cases. It can be used to override
# the driver's chipset detection, and should not normally be specified.
# Chipset "generic"
# The Driver line must be present. When using run-time loadable driver
# modules, this line instructs the server to load the specified driver
# module. Even when not using loadable driver modules, this line
# indicates which driver should interpret the information in this section.
Driver "vga"
# The BusID line is used to specify which of possibly multiple devices
# this section is intended for. When this line isn't present, a device
# section can only match up with the primary video device. For PCI
# devices a line like the following could be used. This line should not
# normally be included unless there is more than one video device
# intalled.
# BusID "PCI:0:10:0"
# VideoRam 256
# Clocks 25.2 28.3
EndSection
# Device configured by xf86config:
Section "Device"
Identifier "Radeon 7200"
Driver "radeon"
#VideoRam 32768
# Insert Clocks lines here if appropriate
EndSection
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