when I change my graphics card X no longer works
Bug #110088 reported by
Michal Suchanek
This bug report is a duplicate of:
Bug #3731: Xorg resolution falling back to 640x480 and/or 800x600 when h/v freqs incorrect.
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Affects | Status | Importance | Assigned to | Milestone | |
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xorg (Ubuntu) |
New
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Undecided
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Unassigned |
Bug Description
Binary package hint: xorg
When I replace my graphics card with one that has chipset from a different manufacturer X no longer works.
Of course, it works if I reconfigure it with X -configure or dpkg-reconfigure xserver-xorg. I usually get suboptimal results this way (low resolution and/or refresh rate) but it works to some extent.
But why should I ever run such script manually? It is obvious that the card is different.
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The current X configuration system runs only at install time, so if you swap hardware after installation, problems like this can occur.
You did the right thing to run X -configure or dpkg-reconfigure. However, sometimes your monitor doesn't get detected (see bug 3731), which results in the suboptimal resolution and refresh rates. As a workaround, if you edit your /etc/X11/xorg.conf file you can fix the refresh rates for your monitor.
Longer term our hope is to make use of Xorg's built-in hardware detection, making all this reconfiguration work unnecessary. See bug 3731 for details.