[Bug 94825] LVDS blank screen on GM45
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Tue Apr 5 03:37:26 UTC 2016
https://bugs.freedesktop.org/show_bug.cgi?id=94825
--- Comment #1 from Rob Kramer <rob at solution-space.com> ---
Created attachment 122711
--> https://bugs.freedesktop.org/attachment.cgi?id=122711&action=edit
Boot log #2, VBT disabled
Boot log #2 is with logging changed to drm.debug=0x1e log_buf_len=1M as per
Intel bug report page. Here, the VBT selection in intel-lvds.c is commented
out:
DRM_DEBUG_KMS("NOT using mode from VBT: ");
/* Failed to get EDID, what about VBT? */
/*
if (dev_priv->vbt.lfp_lvds_vbt_mode) {
DRM_DEBUG_KMS("using mode from VBT: ");
drm_mode_debug_printmodeline(dev_priv->vbt.lfp_lvds_vbt_mode);
fixed_mode = drm_mode_duplicate(dev,
dev_priv->vbt.lfp_lvds_vbt_mode);
if (fixed_mode) {
fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
goto out;
}
}
*/
The result is that the screen seems to work properly, including X. There are
several errors in the log though.
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