by phd7 » Sun Aug 05, 2012 19:21
After reading a few threads , and the Catalyst article, I pulled the info together and followed the following steps. It workd for me and I have no problems with the windows.
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1. Get Rid of ATI drivers
equo remove --configfiles ati-drivers ati-userspace
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2a. to check if xf86-video-ati is installed:
equo query installed xf86-video-ati --quiet –verbose
if not installed ...
2b. Install xf86-video-ati
equo install xf86-video-ati
The first time I tried, I just ran the install command before checking which also pulled in a load of other stuff, and I didnt get the logi-in screen so the next time, I relaoded my backup and checked first if it was already installed.
2c. Remove the file /etc/gpu-detector.conf
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3. let kernel load radeon module.
Edit /etc/conf.d/modules add “radeon” to modules line
Create the line modules=”radeon” at the end of the file or add the word radeon if this line already exists with other module mentioned
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4. Remove some kernel modules from the grub menu
Edit /etc/default/sabayon-grub remove console=tty1, quiet splash=**** and vga=****
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5. Add a custom parameter that enables KMS (kernel Mode Setting)
Edit /etc/default/grub in the line GRUB_CMDLINE_LINUX_DEFAULT add “radeon.modeset=1”
5a. Create the following file /etc/modprobe.d/radeon.conf containing the line:
options radeon modeset=1
Note...there may be some duplication here. At some point, either in this process of after running the next update, there was a line about 2 files with this modeset and 3 options for what I wanted to do. I chose number 3. I forget what it said exactly
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6. regenerate grub.cfg file
grub-mkconfig -o /boot/grub/grub.cfg
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7. Use ATI in xorg config file
Edit /etc/X11/xorg.conf and change “fglrx” to “ati” if not already done