[    2.690564] [drm] radeon kernel modesetting enabled.
[    2.714883] radeon 0000:04:00.0: enabling device (0106 -> 0107)
[    2.733479] radeon 0000:04:00.0: VRAM: 4096M 0x0000000000000000 - 0x00000000FFFFFFFF (4096M used)
[    2.733481] radeon 0000:04:00.0: GTT: 2048M 0x0000000100000000 - 0x000000017FFFFFFF
[    2.733539] [drm] radeon: 4096M of VRAM memory ready
[    2.733541] [drm] radeon: 2048M of GTT memory ready.
[    2.758860] [drm] radeon: dpm initialized
[    2.768649] radeon 0000:04:00.0: WB enabled
[    2.768651] radeon 0000:04:00.0: fence driver on ring 0 use gpu addr 0x0000000100000c00 and cpu addr 0xffff88044a857c00
[    2.768653] radeon 0000:04:00.0: fence driver on ring 1 use gpu addr 0x0000000100000c04 and cpu addr 0xffff88044a857c04
[    2.768654] radeon 0000:04:00.0: fence driver on ring 2 use gpu addr 0x0000000100000c08 and cpu addr 0xffff88044a857c08
[    2.768655] radeon 0000:04:00.0: fence driver on ring 3 use gpu addr 0x0000000100000c0c and cpu addr 0xffff88044a857c0c
[    2.768656] radeon 0000:04:00.0: fence driver on ring 4 use gpu addr 0x0000000100000c10 and cpu addr 0xffff88044a857c10
[    2.770214] radeon 0000:04:00.0: fence driver on ring 5 use gpu addr 0x0000000000075a18 and cpu addr 0xffffc90002c35a18
[    2.790588] radeon 0000:04:00.0: fence driver on ring 6 use gpu addr 0x0000000100000c18 and cpu addr 0xffff88044a857c18
[    2.790592] radeon 0000:04:00.0: fence driver on ring 7 use gpu addr 0x0000000100000c1c and cpu addr 0xffff88044a857c1c
[    2.790598] radeon 0000:04:00.0: radeon: MSI limited to 32-bit
[    2.790628] radeon 0000:04:00.0: radeon: using MSI.
[    2.790672] [drm] radeon: irq initialized.
[    3.525619] [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x850C)=0xFFFFFFFF)
[    3.525651] radeon 0000:04:00.0: disabling GPU acceleration
[    3.999565] [drm:radeon_pm_late_init [radeon]] *ERROR* radeon_pm_late_init failed, disabling dpm
[    3.999609] [drm] Initialized radeon 2.43.0 20080528 for 0000:04:00.0 on minor 1
[    4.005612] [drm] radeon: finishing device.
[    5.134378] [drm] radeon: ttm finalized