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Message-ID: <20100824154154.GA10473@sucs.org> Date: Tue, 24 Aug 2010 16:41:55 +0100 From: Sitsofe Wheeler <sitsofe@...oo.com> To: Chris Wilson <chris@...is-wilson.co.uk> Cc: intel-gfx@...ts.freedesktop.org, LKML <linux-kernel@...r.kernel.org>, dri-devel@...ts.freedesktop.org Subject: [PATCH 1/2] drm/i915: Revert wait for vblank to prevent X refresh issues In commit 9d0498a2bf7455159b317f19531a3e5db2ecc9c4 20ms waits were converted into vblank waits. One of these caused tearing, mode detection and redraw issues on an EeePC 900 with a more recent intel userspace ( http://lkml.org/lkml/2010/8/23/432 ). Restoring the 20ms wait resolves the issue. --- drivers/gpu/drm/i915/intel_display.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 23157e1..116d938 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4539,7 +4539,7 @@ struct drm_crtc *intel_get_load_detect_pipe(struct intel_encoder *intel_encoder, encoder_funcs->commit(encoder); } /* let the connector get through one full cycle before testing */ - intel_wait_for_vblank(dev, intel_crtc->pipe); + msleep(20); return crtc; } -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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