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authorAlex Deucher <alexdeucher@gmail.com>2009-11-23 12:54:41 -0500
committerAlex Deucher <alexdeucher@gmail.com>2009-11-23 12:54:41 -0500
commit26ecf3aad5f3a70b3267614bff6030604820f4d9 (patch)
tree1fa86d9ad39809bdc66eddfb611adf7d2f44cc28
parent51266161f70baf4ddbf79ba6225ee2ae107a9f36 (diff)
DCE3.2: fix uniphy2 dvi issues
In some cases the atom transmitter table sets the golden value of this reg differently which some monitors don't like. I haven't had time to dig further, so this works around it for now. Fixes fdo bug 24313 Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
-rw-r--r--src/atombios_output.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/atombios_output.c b/src/atombios_output.c
index 57345b34..66a86f47 100644
--- a/src/atombios_output.c
+++ b/src/atombios_output.c
@@ -1472,6 +1472,18 @@ atombios_apply_output_quirks(xf86OutputPtr output, DisplayModePtr mode)
/* set scaler clears this on some chips */
if (IS_AVIVO_VARIANT && (mode->Flags & V_INTERLACE))
OUTREG(AVIVO_D1MODE_DATA_FORMAT + radeon_crtc->crtc_offset, AVIVO_D1MODE_INTERLEAVE_EN);
+
+ if (IS_DCE32_VARIANT && (radeon_output->active_device & (ATOM_DEVICE_DFP_SUPPORT))) {
+ radeon_encoder_ptr radeon_encoder = radeon_get_encoder(output);
+ if (radeon_encoder == NULL)
+ return;
+ /* XXX: need to sort out why transmitter control table sometimes sets this to a
+ * different golden value.
+ */
+ if (radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_UNIPHY2) {
+ OUTREG(0x7ec4, 0x00824002);
+ }
+ }
}
void