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A while ago I had a working 2-head setup which I stopped using because I |
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needed to use the proprietary ati driver. Now I need to revert to using the |
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twin-head setup, but I can't get it to work any more. |
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I have the same xorg.conf as before. What has changed is that I have upgraded |
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to xorg-7. It is also likely that I did something to my kernel config to get |
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the fglrx driver to work properly, but I can't remember what exactly. I get |
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confused about this because the various display-related kernel options are |
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scattered all over the place. |
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The setup basically consists of an agp radeon 9200SE (using the radeon driver) |
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and a pci voodoo banshee (using the tdfx driver). |
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The precise manifestation of the problem changed with the recent bump from |
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xorg-server-1.0.2-r4 to xorg-server-1.0.2-r5. |
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Before the bump I got a screen that was the right overall colour, but with |
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ugly incomplete horizontal lines across it. Windows were recognisably |
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windows, but still heavily garbled. Within half an hour or so I would have |
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complete system lock-up. |
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After the bump I now get a screen composed of horizontal red and black lines, |
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with the occasional flicker on the left hand side when something happens on |
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the desktop. The only thing that is barely recognisable is the mouse pointer, |
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which looks like a white bar-code. After a period of use (perhaps 20 minutes) |
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the display locks up irrecoverably, but I am able to restart gracefully from |
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a remote terminal session. |
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I tried the noaccel option, but that made no useful difference (I merely got a |
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few warning messages). |
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I have tried using alternative drivers, but I can't get any to work for me. I |
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had thought that vesa was a generic driver that should work on pretty well |
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anything, but it doesn't work here. The log says "chipset vesa not found". |
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fbdev doesn't work either. I tried vga, but that caused an instant system |
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lock-up. |
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What should I do to get a working 2-head setup? |
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And when I have got it working, would there be any advantage in emerging |
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xorg-drm, in terms of making up for the performance shortfall between the |
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radeon driver and fglrx? |
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Many thanks |
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Robert |
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-- |
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Robert Persson |
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That's MISTER Scum to you. |
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-- |
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