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-rw-r--r--src/atipreinit.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/atipreinit.c b/src/atipreinit.c
index ebe54ad1..df112461 100644
--- a/src/atipreinit.c
+++ b/src/atipreinit.c
@@ -1918,11 +1918,11 @@ ATIPreInit
VBlankEnd += 0x0100U;
pATI->LCDHBlankWidth = HBlankEnd - HBlankStart;
- pATI->LCDHSyncStart = HSyncStart - HBlankStart - 1;
+ pATI->LCDHSyncStart = HSyncStart - HBlankStart;
pATI->LCDHSyncWidth = HSyncEnd - HSyncStart;
pATI->LCDVBlankWidth = VBlankEnd - VBlankStart;
- pATI->LCDVSyncStart = VSyncStart - VBlankStart - 1;
+ pATI->LCDVSyncStart = VSyncStart - VBlankStart;
pATI->LCDVSyncWidth = VSyncEnd - VSyncStart;
HDisplay = HTotal + 5 - pATI->LCDHBlankWidth;