git bisect start '--' 'drivers/gpu'
# bad: [19f949f52599ba7c3f67a5897ac6be14bfcb1200] Linux 3.8
git bisect bad 19f949f52599ba7c3f67a5897ac6be14bfcb1200
# good: [28a33cbc24e4256c143dce96c7d93bf423229f92] Linux 3.5
git bisect good 28a33cbc24e4256c143dce96c7d93bf423229f92
# good: [a5a0fc67435599d9d787a8d7153967a70fed968e] Merge branch 'exynos-drm-next' of git://git.infradead.org/users/kmpark/linux-samsung into drm-next
git bisect good a5a0fc67435599d9d787a8d7153967a70fed968e
# bad: [46654061bbf62ead0a7cbbaae9f95908a692adce] drm/nvd0-nve0/disp: initial implementation of evo channel classes
git bisect bad 46654061bbf62ead0a7cbbaae9f95908a692adce
# good: [daed2dbb7ea4d179e472396ce46377fe758d5faf] drm/i915: use the CPU and PCH transcoders on lpt_pch_enable
git bisect good daed2dbb7ea4d179e472396ce46377fe758d5faf
# good: [9fabd4eedeb904173d05cb1ced3c3e6b9d2e8137] Merge branch 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
git bisect good 9fabd4eedeb904173d05cb1ced3c3e6b9d2e8137
# bad: [c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1] drm/vmwgfx: Refactor resource management
git bisect bad c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1
# skip: [ef8cf3a1c523afa499d15856e7db3844ad59d1fb] drm/radeon: Use hweight32
git bisect skip ef8cf3a1c523afa499d15856e7db3844ad59d1fb
# bad: [0b91c4a1cd7cc368763de2fe25b8ea64ea803c08] drm/ttm: remove ttm_buffer_object->buffer_start
git bisect bad 0b91c4a1cd7cc368763de2fe25b8ea64ea803c08
# good: [d8f4a9eda006788d8054b8500d9eb5b6efcd8755] drm: Add NVIDIA Tegra20 support
git bisect good d8f4a9eda006788d8054b8500d9eb5b6efcd8755
# bad: [5e2cb2f6da72323877e5847512f8bd8d53c532f2] drm: properly init/reset connector status
git bisect bad 5e2cb2f6da72323877e5847512f8bd8d53c532f2
# good: [3d3683f04a32da16df71e3b089da8f5a13059ef4] drm: extract drm_kms_helper_hotplug_event
git bisect good 3d3683f04a32da16df71e3b089da8f5a13059ef4
# bad: [69787f7da6b2adc4054357a661aaa1701a9ca76f] drm: run the hpd irq event code directly
git bisect bad 69787f7da6b2adc4054357a661aaa1701a9ca76f
# good: [816da85a0990c2b52cfffa77637d1c770d6790e9] drm: handle HPD and polled connectors separately
git bisect good 816da85a0990c2b52cfffa77637d1c770d6790e9