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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [845g regression] No output on LVDS"
href="https://bugs.freedesktop.org/show_bug.cgi?id=66516#c8">Comment # 8</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [845g regression] No output on LVDS"
href="https://bugs.freedesktop.org/show_bug.cgi?id=66516">bug 66516</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>Working hack:
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 1a8a01b..e77acf1 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3717,7 +3717,7 @@ static void i9xx_crtc_disable(struct drm_crtc *crtc)
int pipe = intel_crtc->pipe;
int plane = intel_crtc->plane;
- if (!intel_crtc->active)
+ if (!intel_crtc->active && 0)
return;
for_each_encoder_on_crtc(dev, crtc, encoder)
@@ -4597,6 +4597,7 @@ static void i8xx_update_pll(struct intel_crtc *crtc,
if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) {
dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
} else {
+ dpll |= DPLL_DVO_HIGH_SPEED;
if (clock->p1 == 2)
dpll |= PLL_P1_DIVIDE_BY_TWO;
else
@@ -9431,7 +9432,7 @@ static struct intel_quirk intel_quirks[] = {
{ 0x2782, 0x17aa, 0x201a, quirk_pipea_force },
/* 830/845 need to leave pipe A & dpll A up */
- { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
+ //{ 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
{ 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
/* Lenovo U160 cannot use SSC on LVDS */</pre>
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