Description of problem:
Since kernel 3.5.0, upto 3.5.2-1 and inl. kernel-tmb-3.5.2-1, I cannot get X to start with either fglrx-8.980-3.mga3 or fglrx-8.982-1.mga3

Nor can I cange to any tty to see what's happening, nor restart X via [ alt + ctrl + backspace]

Same kernel on an nvidia laptop work flawlessly. Also booting seems quite okay until the moment X is supposed to start.

The only thing I can find in the logs which is different from before is
this:

Jul 28 09:45:31 dvg kernel: [   13.289114] ACPI Warning:
0x0000000000000830-0x0000000000000833 SystemIO conflicts with Region \PMRG
1 (20120320/utaddress-251)
Jul 28 09:45:31 dvg kernel: [   13.289118] ACPI Warning:
0x0000000000000830-0x0000000000000833 SystemIO conflicts with Region
\_SB_.PCI0.SBRG.SMIE 2 (20120320/utaddress-251) 
Jul 28 09:45:31 dvg kernel: [   13.289122] lpc_ich: Resource conflict(s)
found affecting iTCO_wdt
Jul 28 09:45:31 dvg kernel: [   13.289124] ACPI Warning:
0x0000000000000828-0x000000000000082f SystemIO conflicts with Region \PMRG
1 (20120320/utaddress-251) 
Jul 28 09:45:31 dvg kernel: [   13.289128] ACPI Warning:
0x0000000000000500-0x000000000000053f SystemIO conflicts with Region \GPS0
1 (20120320/utaddress-251) 
Jul 28 09:45:31 dvg kernel:[   13.289131] lpc_ich: Resource conflict(s)
found affecting gpio_ich 
Jul 28 09:45:31 dvg kernel: [   13.558339] ACPI Warning:
0x0000000000000400-0x000000000000041f SystemIO conflicts with Region \SMRG
1 (20120320/utaddress-251)

while if using the older kernels I only get this:

Jul 28 09:50:18 dvg kernel: [   14.724078] ACPI Warning:
0x0000000000000400-0x000000000000041f SystemIO conflicts with Region \SMRG
1 (20120320/utaddress-251) 
Jul 28 09:50:18 dvg kernel: [   38.563510] ACPI
Warning: 0x0000000000000295-0x0000000000000296 SystemIO conflicts with
Region \_SB_.PCI0.SBRG.SIOR.HWRE 1 (20120320/utaddress-251) 

but I see no real problems anywhere with the older kernels.

I will attach all the usual info needed for any kernel bug report.