[PATCH 6/10] nvidiafb: Some chipsets need a buffer pitch divisible by 64
From: Antonino A. Daplas <hidden>
Date: 2005-03-06 00:18:59
The Geforce2 cards crashes at 800x600-8, but not at 640x480 or 1024x768. Changing the xres_virtual to be divisible by 64 fixes the problem. Signed-off-by: Antonino Daplas <redacted> --- nvidia.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff -Nru a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c
--- a/drivers/video/nvidia/nvidia.c 2005-02-21 20:43:10 +08:00
+++ b/drivers/video/nvidia/nvidia.c 2005-03-01 00:12:38 +08:00@@ -1099,7 +1099,6 @@ var->transp.length = 0; var->xres &= ~7; - var->xres_virtual &= ~7; if (var->bits_per_pixel <= 8) var->bits_per_pixel = 8;
@@ -1179,6 +1178,8 @@ if (var->xres_virtual < var->xres) var->xres_virtual = var->xres; + var->xres_virtual = (var->xres_virtual + 63) & ~63; + vramlen = info->fix.smem_len; pitch = ((var->xres_virtual * var->bits_per_pixel) + 7) / 8; memlen = pitch * var->yres_virtual;
@@ -1212,7 +1213,7 @@ var->xres_virtual = 0x7fff; } - var->xres_virtual &= ~8; + var->xres_virtual &= ~63; NVTRACE_LEAVE(); -------------------------------------------------------
SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click