Paul Gofman : win32u: Set BAD_EDID registry value for empty EDID.
Alexandre Julliard
julliard at winehq.org
Wed Mar 2 15:39:51 CST 2022
Module: wine
Branch: master
Commit: 7a49ff107e2fd28d366099133eeac153da4115f7
URL: https://source.winehq.org/git/wine.git/?a=commit;h=7a49ff107e2fd28d366099133eeac153da4115f7
Author: Paul Gofman <pgofman at codeweavers.com>
Date: Wed Mar 2 19:02:43 2022 +0300
win32u: Set BAD_EDID registry value for empty EDID.
Fixes a regression introduced by commit
548bc54bf396d74b5b928bf9be835272ddda1886.
Signed-off-by: Paul Gofman <pgofman at codeweavers.com>
Signed-off-by: Jacek Caban <jacek at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/win32u/sysparams.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/dlls/win32u/sysparams.c b/dlls/win32u/sysparams.c
index cd4ff91255e..b981faef335 100644
--- a/dlls/win32u/sysparams.c
+++ b/dlls/win32u/sysparams.c
@@ -1120,8 +1120,13 @@ static void add_monitor( const struct gdi_monitor *monitor, void *param )
if ((subkey = reg_create_key( hkey, device_parametersW, sizeof(device_parametersW), 0, NULL )))
{
+ static const WCHAR bad_edidW[] = {'B','A','D','_','E','D','I','D',0};
static const WCHAR edidW[] = {'E','D','I','D',0};
- set_reg_value( subkey, edidW, REG_BINARY, monitor->edid, monitor->edid_len );
+
+ if (monitor->edid_len)
+ set_reg_value( subkey, edidW, REG_BINARY, monitor->edid, monitor->edid_len );
+ else
+ set_reg_value( subkey, bad_edidW, REG_BINARY, NULL, 0 );
NtClose( subkey );
}
@@ -1327,7 +1332,6 @@ static BOOL update_display_cache(void)
ERR( "failed to read display config\n" );
return FALSE;
}
-
return TRUE;
}
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