ab3595bc4f
Sometimes it would be most enlightening to debug systems by replacing the VBT to be used. For example, in the referenced bug the BIOS provides different VBT depending on the boot mode (UEFI vs. legacy). It would be interesting to try the failing boot mode with the VBT from the working boot, and see if that makes a difference. Add a module parameter to load the VBT using the firmware loader, not unlike the EDID firmware mechanism. As a starting point for experimenting, one can pick up the BIOS provided VBT from /sys/kernel/debug/dri/0/i915_opregion/i915_vbt. v2: clarify firmware load return value check (Bob) v3: kfree the loaded firmware blob References: https://bugs.freedesktop.org/show_bug.cgi?id=97822#c83 Reviewed-by: Bob Paauwe <bob.j.paauwe@intel.com> Acked-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170817115209.25912-1-jani.nikula@intel.com |
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| drm | ||
| host1x | ||
| ipu-v3 | ||
| vga | ||
| Makefile | ||