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Well, the title is pretty descriptive.
I recently bought an ATI Radeon HD 5770, and having been spoiled by Nvidia, drivers remained an afterthought. What a mistake!
I have never been able to set it well with Arch.
With the xf86-video-ati, I could not VT-switch. Doing so resulted in a black screen which was still responsive to the keyboard but fed no graphics to the monitor. I could switch back to X, though. I tried both with the default settings and with KMS disabled.
Note that I could use the console normally until I startx'ed. Then it'd be impossible to VT-switch.
Some time ago (a few minutes) I decided to do something about it and I installed the fglrx driver with the catalyst 10.6-1 from the AUR.
Now I can VT-switch just fine, though I don't think KMS is enabled due to the time it takes to VT-switch.
01:18:17 elros@blackpearl ~ $ dmesg | grep modesetting
[drm] radeon defaulting to kernel modesetting.
[drm] radeon kernel modesetting enabled.So I guess the above is weird.
But the main problem is that I keep encountering black rectangles covering widgets. In firefox sometimes a whole tab is blacked-out.
Does anyone has thoughts on this?
(just typing the line above and hitting enter twice made the foreground and background of the letters go to black. weird.)
Thank you in advance!
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Catalyst doesn't support kms. Only the open source ati driver does this, so I would remove that driver and make sure the fglrx driver is loaded.
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I don't think fglrx really likes KMS from xf86-video-ati. I think it is best to remove it. In the wiki it says you should boot with nomodeset added to the kernel line but you don't need this I think.
The problem with the black artifacts in firefox are really new: It came with catalyst 10.6 which was released yesterday...
There's a whole wiki page and some repos dedicated to catalyst: http://wiki.archlinux.org/index.php/ATI … positories
When you use the one with catalyst 10.5 everything should be fine.
The vt switch issue is strange... But keep in mind that xf86-video-ati does not support the new evergreen gpus very well yet:
http://www.x.org/wiki/RadeonFeature
The best result you can get probably with testings versions described in this thread:
http://bbs.archlinux.org/viewtopic.php?id=79509
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