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From ee6cee995e403b3fa81798cddb5247be6de3205b Mon Sep 17 00:00:00 2001
From: Colin Watson <cjwatson@ubuntu.com>
Date: Mon, 13 Jan 2014 12:13:11 +0000
Subject: Blacklist 1440x900x32 from VBE preferred mode handling
Bug-Ubuntu: https://bugs.launchpad.net/bugs/701111
Forwarded: no
Last-Update: 2013-11-14
Patch-Name: blacklist-1440x900x32.patch
---
grub-core/video/i386/pc/vbe.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/grub-core/video/i386/pc/vbe.c b/grub-core/video/i386/pc/vbe.c
index b7f911926..4b1bd7d5e 100644
--- a/grub-core/video/i386/pc/vbe.c
+++ b/grub-core/video/i386/pc/vbe.c
@@ -1054,6 +1054,15 @@ grub_video_vbe_setup (unsigned int width, unsigned int height,
|| vbe_mode_info.y_resolution > height)
/* Resolution exceeds that of preferred mode. */
continue;
+
+ /* Blacklist 1440x900x32 from preferred mode handling until a
+ better solution is available. This mode causes problems on
+ many Thinkpads. See:
+ https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/701111 */
+ if (vbe_mode_info.x_resolution == 1440 &&
+ vbe_mode_info.y_resolution == 900 &&
+ vbe_mode_info.bits_per_pixel == 32)
+ continue;
}
else
{
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