On Wed, Jun 13, 2012 at 01:46:58PM -0500, Seth Forshee wrote:
The Lenovo Thinkpad T410 has the LVDS_PIPEB_SELECT bit set in the LVDS register when booted with the lid closed, even though the LVDS hasn't really been initialized. Ignore this bit so that the VBT value will be used instead.
Signed-off-by: Seth Forshee seth.forshee@canonical.com
Queued for -next, thanks for the patch. Chris had some reservations about the sanity of this patch, but given that it works around bios-insanity I'm gonna just take this chance to stab myself with lvds-machines blowing up left and right ;-) -Daniel
drivers/gpu/drm/i915/intel_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index e0aa064..ae17526 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -434,7 +434,7 @@ static bool is_dual_link_lvds(struct drm_i915_private *dev_priv, * register is uninitialized. */ val = I915_READ(reg);
if (!(val & ~LVDS_DETECTED))
if (!(val & ~(LVDS_PIPE_MASK | LVDS_DETECTED))) val = dev_priv->bios_lvds_val;-- 1.7.9.5