[PATCH] drm/i915/bios: Workaround broken video BIOS in LG Gram 2021
H.J. Lu
hjl.tools at gmail.com
Fri Feb 28 07:01:59 UTC 2025
LG Gram 2021 laptop 17Z95P-K.ADE9U1 OpRegion has
FW size: 0x2200
VBT size: 0x2000
BDB offset: 0x30
BDB size: 0x216e
Add intel_init_opregion_quirks to use FW size as VBT size on LG Gram
17Z95P-K.ADE9U1 and update intel_bios_is_valid_vbt to use FW size,
instead of VBT size if the quirk is applied, in range_overflows_t for
BDB size overflow check. This fixes:
https://gitlab.freedesktop.org/drm/intel/-/issues/4763
Signed-off-by: H.J. Lu <hjl.tools at gmail.com>
--
H.J.
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