From dca247bee880fc6deb1cad15db2e45aed22efbc6 Mon Sep 17 00:00:00 2001 From: Ashish Arora Date: Sat, 8 Jan 2022 21:43:18 +1100 Subject: [PATCH] drm/i915: Discard large BIOS framebuffers causing display corruption. 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 Signed-off-by: Aun-Ali Zaidi --- 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 df05d285f0bd..c66c515a1b31 100644 --- a/drivers/gpu/drm/i915/display/intel_fbdev.c +++ b/drivers/gpu/drm/i915/display/intel_fbdev.c @@ -192,10 +192,10 @@ static int intelfb_create(struct drm_fb_helper *helper, int ret; if (intel_fb && - (sizes->fb_width > intel_fb->base.width || - sizes->fb_height > intel_fb->base.height)) { + (sizes->fb_width != intel_fb->base.width || + sizes->fb_height != intel_fb->base.height)) { drm_dbg_kms(&dev_priv->drm, - "BIOS fb too small (%dx%d), we require (%dx%d)," + "BIOS fb not valid (%dx%d), we require (%dx%d)," " releasing it\n", intel_fb->base.width, intel_fb->base.height, sizes->fb_width, sizes->fb_height);