From: Melchior FRANZ mfranz@aon.at
Fix garbled up virtual linux console on Acer TM 5735Z-452G32Mnss (colored stripes, unreadable text) by adding the intel_enable_plane() call also to i9xx_crtc_mode_set(), which didn't inherit it from intel_crtc_mode_set() like its twin ironlake_crtc_mode_set().
Signed-off-by: Melchior FRANZ mfranz@aon.at ---
The bug was originally introduced with 49183b2818 and fixed with 982b2035d9, but re-introduced by a recent drm/i915 branch merge.
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index f553ddf..5d20579 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4735,6 +4735,8 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
I915_WRITE(DSPCNTR(plane), dspcntr); POSTING_READ(DSPCNTR(plane)); + if (!HAS_PCH_SPLIT(dev)) + intel_enable_plane(dev_priv, plane, pipe);
ret = intel_pipe_set_base(crtc, x, y, old_fb);