How do I determine what is wrong with my display?

Asked by WubiNeophyte on 2009-08-02

I have a problem with my display, and as it is an LCD on a laptop, I'm guessing that it has something to do with the framebuffer. I'm seeing small artifacts appear and disappear intermittently.

This doesn't seem to affect proper functioning, however it is annoying and unpolished. I would like to report a bug, but I'm not sure whether it would be in the framebuffer or elsewhere. I can't imagine that it hasn't already been filed as a bug, but I lack the diagnostic skills to find the report and track it to resolution. For example, perhaps it is the same as bug 22214, but I don't know how to determine that.

Please help.

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Launchpad Janitor (janitor) said :

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

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WubiNeophyte (wubibugs) said :

It's not my fault there's been no activity. I'm waiting for direction.

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Rolf Leggewie (r0lf) said :

Maybe you want to attach a screenshot?

Is this in X or on the console? If it is in X, the more likely candidate is your graphics driver.

You should list the hardware you have, especially "lspci -vv" and let us know what graphics driver you use. You could attach your xorg.conf, too.

HTH to move you in the right direction.

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WubiNeophyte (wubibugs) said :

Thanks for the help!

The problem is in X, not the console. I'm not using that computer at the moment, but I can assure you that I'm using the default graphics driver.

When I next use that machine, I should be able to get the above data points, assuming xorg.conf is a config file. I'm assuming in /etc, but will search if I don't find it.

Not that it matters, but I don't know what HTH means.

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Tormod Volden (tormodvolden) said :

Please find out which video driver you are using (see /var/log/Xorg.0.log where most of the lines starts with "(II) DRIVER(0):" where DRIVER would be the driver name. Then the driver package is something like xserver-xorg-video-driver, where driver is the same name. File a bug using "ubuntu-bug xserver-xorg-video-driver".

Hope This Helps

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WubiNeophyte (wubibugs) said :

Moved to Karmic.

The issue reported here seems to be fixed in Karmic, but I'm still seeing what I believe are framebuffer issues (see bug 474134).

Thanks for your help. Maybe I can remember to look in the right place for driver info next time.

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