diff mbox series

[-,v2] drm/i915: Discard large BIOS framebuffers causing display corruption.

Message ID F14712CC-6057-4E8B-8694-E014B79EF718@outlook.com (mailing list archive)
State New, archived
Headers show
Series [-,v2] drm/i915: Discard large BIOS framebuffers causing display corruption. | expand

Commit Message

Ashish Arora Jan. 7, 2022, 3:02 p.m. UTC 
From: Ashish Arora <ashisharora.linux@outlook.com>

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 <ashisharora.linux@outlook.com>
---
 drivers/gpu/drm/i915/display/intel_fbdev.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c
index adc3a81be..0a64184df 100644
--- a/drivers/gpu/drm/i915/display/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/display/intel_fbdev.c
@@ -194,10 +194,10 @@  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);