https://bugs.freedesktop.org/show_bug.cgi?id=63599
--- Comment #15 from wojtek wojtask9@wp.pl --- diff between registers from comment#13 before startx
diff fglrx_registers_c.log radeon_registers_c.log 2c2 < 0x98F8 0x00000000 (0) ---
0x98F8 0x02010002 (33619970)
7,8c7,8 < 0x3F90 0xffff0000 (-65536) < 0x9148 0xffff0000 (-65536) ---
0x3F90 0x00000000 (0) 0x9148 0x00000000 (0)
15,17c15,17 < 0x8B24 0x00000000 (0) < 0xA008 0x00030000 (196608) < 0xA020 0x00158011 (1409041) ---
0x8B24 0x00ff0fff (16715775) 0xA008 0x00010000 (65536) 0xA020 0x00020009 (131081)
20,21c20,21 < 0x913C 0x01000000 (16777216) < 0x960c 0x76543210 (1985229328) ---
0x913C 0x00000004 (4) 0x960c 0x54763210 (1417032208)
23c23 < 0x88C4 0x00000000 (0) ---
0x88C4 0x000000c1 (193)