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Hello all,
![Radeon x1600 driver windows 7 64 bit Radeon x1600 driver windows 7 64 bit](/uploads/1/2/5/5/125519507/455184589.jpg)
Before I used the method explained in the OP post, it would list it as an ATI Radeon X1600 in the 'hardware' tab with 8.450.0.0 (or something quite similiar) as it's driver. However, now it's an 'ATI MOBILITY Radeon X1600' with driver '8.593.100.0'.
After a week of tearing my hair out and reading threads on this forum and others, I was able to get Mint 18 working on a late 2006 iMac. Everything minus the iSight camera works, but that's not a problem. What IS a problem is heat generation. I know that it is commonly known that Mint/Ubuntu 'run hot' on Macs for whatever reason, and usually people fight this by using some sort of fan control. While this may remedy the heat and eventually wear out fans that weren't designed to run all of the time, it doesn't address the actual issue. I also considered going back to 17, but this heat issue has been around since 13, from what I've read. Perhaps even further.
I seem to have narrowed the problem (at least on my machine) to the graphics. The system is a Core 2 Duo 2.16. Viewing System Monitor 'resources' tab - both cores are at 10 - 15% usage at idle. Moving the mouse increases both cores by 5%. Dragging a window across the screen brings both cores to 65%. Scrolling a window in FireFox brings both cores to 100% momentarily. System Monitor 'processes' tab doesn't show ANY CPU usage hardly at all, with System Monitor bringing the lead at 5%.
![Ati Radeon X1600 Pro Rv530 Driver For Mac Ati Radeon X1600 Pro Rv530 Driver For Mac](/uploads/1/2/5/5/125519507/109918578.jpg)
Symptoms - after about 1-2 hours of use, the video gets 'flaky'. Some fonts look weird, random lines and dots on the screen, etc. Reaching behind the iMac where the vent is feels like heat that would be sufficient to cook an egg.
Graphics - ATI Radeon x1600 mobility with 512k VRAM. The iMacs internally are a laptop configuration. Of course the logic board is made specifically for the iMac, but the 'flavor' of the setup is basically a laptop. Most Linux distros treat it as such. Is there a different driver that I can try? The one that is installed defaulty works wonderful, but something about this particular configuration doesn't seem 100% compatible with this graphics chipset. Is there somewhere else I can check for CPU usage? How can I try and narrow this down? Perhaps I'm using the regular x1600 drivers and not the mobility drivers? Would there be a difference? How can I check?
I also realize that Gnome may just be too much for this old machine to handle, but I think a Core 2 Duo with 3GB ram should be able to operate within this environment pretty easy. I'm not trying to play games or process videos and graphics. I just want to browse the web and do email. Any suggestions would be appreciated.
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