OK, here's what I did...
(These steps assume you have a working copy of Karmic, with your ATI graphics card already set up on it. If you haven't, then see note below.)
- Removed graphics card, then installed Lucid alongside my previous installation of Karmic.
- Put graphics card back in. If you boot, then choose the new (Lucid) installation at startup, the monitor switches off. So restart and boot into Karmic.
- Open a Nautilus window as root (press Alt+F2, then enter gksudo nautilus ). Find the new (Lucid) partition, and mount it.
- Now, you can copy the file /etc/X11/xorg.conf from your Karmic to your Lucid.
- Restart. This time, at the boot menu, choose Lucid. If all went well, then hopefully the screen will not turn off this time, and instead you'll get a dialogue warning that your graphics drivers aren't configured properly (or something like that). I chose the option to run in low graphics for "this session only".
- Hopefully you're now able to log in. The graphics look pretty awful, but that's OK for now. Now you could probably just skip to the next step, but if you want to do exactly what I did (it worked for me), then you should run the automatic Update Manager (in the system menu) to install general updates. And then restart when it asks you to, and boot into Lucid again (same warning about graphics; give the same answer, "this session only").
- Now, I went to System > Administration > Hardware drivers, and used this to automatically install the proprietary ATI drivers. Restart.
- If it worked, then Lucid will now boot up with perfect graphics. (Incidentally, when I installed Karmic last year, the automatic hardware driver installer thing didn't work, and I had to manually download and run files from ATI, plus a load of manual configuring. But this time the automatic thing worked perfectly.)
What if you don't have a working copy of Karmic? In this case, you could manually create the /etc/X11/xorg.conf file, using the content from my one. I don't know if it varies from system to system, so I've given instructions above for copying your own one over from Karmic to Lucid. But if you want to give this a try, here is the content of my file:
I guess the simplest thing would be to boot into the Karmic live CD (or any previous version of Ubuntu, or any Linux), mount the Lucid partition that you've just installed, create the file /etc/X11/xorg.conf , and paste the above content into it. Then proceed from step 5 above.Code:Section "ServerLayout" Identifier "aticonfig Layout" Screen 0 "aticonfig-Screen[0]-0" 0 0 EndSection Section "Files" EndSection Section "Module" EndSection Section "Monitor" Identifier "aticonfig-Monitor[0]-0" Option "VendorName" "ATI Proprietary Driver" Option "ModelName" "Generic Autodetecting Monitor" Option "DPMS" "true" EndSection Section "Device" Identifier "aticonfig-Device[0]-0" Driver "fglrx" BusID "PCI:1:0:0" EndSection Section "Screen" Identifier "aticonfig-Screen[0]-0" Device "aticonfig-Device[0]-0" Monitor "aticonfig-Monitor[0]-0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection
And let me know if this works or not. Good luck.



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