Hello,
If find a workaround to video corruption for intel gpu on macbook pro
retina.
the work around work as follow :
- patch the kernel 3.5.1 with attached patch
- that OS X and switch to intgrated gpu only with:
http://codykrieger.com/gfxCardStatus
- reboot with the patched kernel
I did not try it in BIOS mode, I use it on EFI mode only.
The patch point out the fact that bit-per-pixel of panel is not detected
correctly.
Best regards
--- linux-3.5.1.orig/drivers/gpu/drm/i915/intel_display.c 2012-08-09
17:23:56.000000000 +0200
+++ linux-3.5.1/drivers/gpu/drm/i915/intel_display.c 2012-08-09
21:13:43.146996673 +0200
@@ -3583,7 +3583,8 @@
if (intel_encoder->type == INTEL_OUTPUT_EDP) {
/* Use VBT settings if we have an eDP panel */
- unsigned int edp_bpc = dev_priv->edp.bpp / 3;
+ //unsigned int edp_bpc = dev_priv->edp.bpp / 3;
+ unsigned int edp_bpc = 8;
if (edp_bpc < display_bpc) {
DRM_DEBUG_KMS("clamping display bpc (was %d) to
eDP (%d)\n", display_bpc, edp_bpc);
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