[Bug 94825] LVDS blank screen on GM45
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Tue Apr 12 05:37:50 UTC 2016
https://bugs.freedesktop.org/show_bug.cgi?id=94825
--- Comment #25 from Rob Kramer <rob at solution-space.com> ---
Ah, I just noticed there is still this issue:
[drm:intel_enable_lvds [i915]] *ERROR* timed out waiting for panel to power
on
This occurs every time I restart X, which perhaps does a mode switch to the
same mode? The panel seems to work fine though..
When there is a mode switch (or X is started), a relay clicks in this display
setup. I'm not sure why or what that's for, or if that could introduce an
external delay that the driver doesn't expect.
if (wait_for((I915_READ(stat_reg) & PP_ON) != 0, 1000))
DRM_ERROR("timed out waiting for panel to power on\n");
Is there a way to see if the panel is detected as switched on after a longer
period of time (some seconds)? In /sys, debugfs, or with intel-gpu-tools?
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