From: Ashish Arora Subject: Re: [PATCH] drm/i915: Discard large BIOS framebuffers causing display corruption. Date: Sat, 08 Jan 2022 21:43:18 +1100 On certain 4k panels, the BIOS framebuffer is larger than what panel requires causing display corruption. Introduce a check for the same. Signed-off-by: Ashish Arora --- drivers/gpu/drm/i915/display/intel_fbdev.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c index 49a1ac4f549195..c8c10a6104c4e9 100644 --- a/drivers/gpu/drm/i915/display/intel_fbdev.c +++ b/drivers/gpu/drm/i915/display/intel_fbdev.c @@ -224,10 +224,10 @@ int intel_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper, ifbdev->fb = NULL; if (fb && - (sizes->fb_width > fb->base.width || - sizes->fb_height > fb->base.height)) { + (sizes->fb_width != fb->base.width || + sizes->fb_height != fb->base.height)) { drm_dbg_kms(display->drm, - "BIOS fb too small (%dx%d), we require (%dx%d)," + "BIOS fb not valid (%dx%d), we require (%dx%d)," " releasing it\n", fb->base.width, fb->base.height, sizes->fb_width, sizes->fb_height); -- 1.8.3.1