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drm/radeon/kms: disable the tv encoder when tv/cv is not in use 

Switching between TV and VGA caused VGA to break on some systems
since the TV encoder was left enabled when VGA was used.

fixes fdo bug 25520.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2010-04-13 11:21:59 -04:00 committed by Dave Airlie
parent a1a4b23b66
commit d3a67a43b0
1 changed files with 6 additions and 2 deletions
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8
drivers/gpu/drm/radeon/radeon_encoders.c
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@ -1377,8 +1377,12 @@ radeon_atom_encoder_mode_set(struct drm_encoder *encoder,
case ENCODER_OBJECT_ID_INTERNAL_DAC2:
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DAC2:
atombios_dac_setup(encoder, ATOM_ENABLE);
if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT))
atombios_tv_setup(encoder, ATOM_ENABLE);
if (radeon_encoder->devices & (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT)) {
if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT))
atombios_tv_setup(encoder, ATOM_ENABLE);
else
atombios_tv_setup(encoder, ATOM_DISABLE);
}
break;
}
atombios_apply_encoder_quirks(encoder, adjusted_mode);