linux-kernel - [PATCH] matroxfb: set maxvram of vbG200eW to the same as vbG200 to avoid black screen

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Message-Id: <20211218180035.200552-1-liuzx@knownsec.com>
Date:   Sun, 19 Dec 2021 02:00:35 +0800
From:   "Z. Liu" <liuzx@...wnsec.com>
To:     liuzx@...wnsec.com
Cc:     linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] matroxfb: set maxvram of vbG200eW to the same as vbG200 to avoid black screen

Start from commit 11be60bd66d54 "matroxfb: add Matrox MGA-G200eW board
support", when maxvram is 0x800000, monitor become black w/ error message
said: "The current input timing is not supported by the monitor display.
Please change your input timing to 1920x1080@...z ...".

Fixes: 1be60bd66d54 ("matroxfb: add Matrox MGA-G200eW board support")
Cc: linux-fbdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Z. Liu <liuzx@...wnsec.com>
---
 drivers/video/fbdev/matrox/matroxfb_base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/matrox/matroxfb_base.c b/drivers/video/fbdev/matrox/matroxfb_base.c
index 5c82611e93d9..236521b19daf 100644
--- a/drivers/video/fbdev/matrox/matroxfb_base.c
+++ b/drivers/video/fbdev/matrox/matroxfb_base.c
@@ -1377,7 +1377,7 @@ static struct video_board vbG200 = {
 	.lowlevel = &matrox_G100
 };
 static struct video_board vbG200eW = {
-	.maxvram = 0x800000,
+	.maxvram = 0x100000,
 	.maxdisplayable = 0x800000,
 	.accelID = FB_ACCEL_MATROX_MGAG200,
 	.lowlevel = &matrox_G100
-- 
2.32.0