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Arch linux 32-bit
AMD 2400XP, ATI Radeon 7500 Graphics
Just did a system upgrade which included xorg-server being upgraded to version 188.8.131.521
This seems to have broken the "radeon" driver--I get a very dim green screen. I have now got the system running with the vesa driver.
Google shows that there is a known issue here, but I did not see my exact symptoms or a cure.
Yeah, 6.12.4 is the most recent release, but even that's a number of months old. It's quite possible that this is a bug, some interaction between the driver and the X server that a newer version of the driver might resolve.
OK---peeling the onion: According to the ATI website, the "official" driver only supports model 8500 and later. This could imply that I have been living on borrowed time. Of course, it is possible that the issue goes beyond my 7500 and thus may get fixed.
Still digging......but perhaps I'm getting signals that this 7+ year old system may need to move on....
Ummm... The 'official' driver is called 'fglrx' or sometimes Catalyst. It has never supported your GPU :-) ATI initially funded development of the open source 'radeon' driver (provided by xf86-video-ati) which *should* work for your card, though obviously a dim green screen is not what you should be getting :-)
I installed the "git" version (but I got it thru the Arch User Repository). By itself, it did not solve the problem.
Then, based on another note I found, I deleted xorg.conf and restarted X----Now it's working!!! I suppose I should now go back to the other driver to establish which change did it----first, I need breakfast......