git bisect start '--' 'drivers/gpu/drm/'
# bad: [9fe6206f400646a2322096b56c59891d530e8d51] Linux 2.6.35
git bisect bad 9fe6206f400646a2322096b56c59891d530e8d51
# good: [e40152ee1e1c7a63f4777791863215e3faa37a86] Linus 2.6.34
git bisect good e40152ee1e1c7a63f4777791863215e3faa37a86
# bad: [579766020d2eee2f1c51af1641ef9a7dbc6a5798] nouveau: fix acpi_lid_open undefined
git bisect bad 579766020d2eee2f1c51af1641ef9a7dbc6a5798
# good: [7547a917fa5f3b2406f52c7dcf7ec9ad3c8532eb] Merge branch 'drm-ttm-unmappable' into drm-core-next
git bisect good 7547a917fa5f3b2406f52c7dcf7ec9ad3c8532eb
# bad: [f4b7fb94c576265ceffc43031805ade32fa80c6a] drm/radeon/kms: take vram mutex pointer before derefing object.
git bisect bad f4b7fb94c576265ceffc43031805ade32fa80c6a
# skip: [02b17cc05372ab58e9638008d0206f1c1ee0cf5c] drm/radeon/kms/atom/pm: rework power mode parsing
git bisect skip 02b17cc05372ab58e9638008d0206f1c1ee0cf5c
# good: [0bcad4c95eb4a017029ab82c2c9dee4198503aef] drm/edid: remove an unneeded variable
git bisect good 0bcad4c95eb4a017029ab82c2c9dee4198503aef
# skip: [c00f53be5ec70038d7a34f64872df51dabfc5a5b] drm/radeon/kms/pm: update display watermarks with power state changes
git bisect skip c00f53be5ec70038d7a34f64872df51dabfc5a5b
# skip: [678e7dfa9e1bb0d1ad31b7cddce58fc3b67cfb27] drm/radeon/kms/atom: load hwmon drivers
git bisect skip 678e7dfa9e1bb0d1ad31b7cddce58fc3b67cfb27
# skip: [1d42bbc8f7f9ce4d852692ef7aa336b133b0830a] drm/fbdev: fix cloning on fbcon
git bisect skip 1d42bbc8f7f9ce4d852692ef7aa336b133b0830a
# bad: [a48b9b4edb8bb87deb13b9f088a595cf71457b69] drm/radeon/kms/pm: add asic specific callbacks for getting power state (v2)
git bisect bad a48b9b4edb8bb87deb13b9f088a595cf71457b69
# good: [0ddfa7d574e0f3a7510b0be6c8ed807af017223f] drm: off by one in drm_edid.c
git bisect good 0ddfa7d574e0f3a7510b0be6c8ed807af017223f
# bad: [ef6e6cf56aca91c0b0db8de6e79e0874595fd260] drm/radeon/kms: wait for gpu idle before changing power mode
git bisect bad ef6e6cf56aca91c0b0db8de6e79e0874595fd260
# bad: [def9ba9cf6a8266ee1ffd72556db002c3a2663db] drm/radeon/kms: add gui_idle callback
git bisect bad def9ba9cf6a8266ee1ffd72556db002c3a2663db
# bad: [eb1f8e4f3be898df808e2dfc131099f5831d491d] drm/fbdev: rework output polling to be back in the core. (v4)
git bisect bad eb1f8e4f3be898df808e2dfc131099f5831d491d