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-rw-r--r--src/radeon_driver.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/radeon_driver.c b/src/radeon_driver.c
index bb1e070c..6182eb02 100644
--- a/src/radeon_driver.c
+++ b/src/radeon_driver.c
@@ -2866,7 +2866,8 @@ static Bool RADEONPreInitModes(ScrnInfoPtr pScrn, xf86Int10InfoPtr pInt10)
if (modesFound < 1 && info->FBDev) {
fbdevHWUseBuildinMode(pScrn);
- pScrn->displayWidth = pScrn->virtualX; /* FIXME: might be wrong */
+ pScrn->displayWidth = fbdevHWGetLineLength(pScrn)
+ / info->CurrentLayout.pixel_bytes;
modesFound = 1;
}
@@ -4593,6 +4594,8 @@ _X_EXPORT Bool RADEONScreenInit(int scrnIndex, ScreenPtr pScreen,
unsigned char *RADEONMMIO = info->MMIO;
if (!fbdevHWModeInit(pScrn, pScrn->currentMode)) return FALSE;
+ pScrn->displayWidth = fbdevHWGetLineLength(pScrn)
+ / info->CurrentLayout.pixel_bytes;
RADEONSaveMemMapRegisters(pScrn, &info->ModeReg);
info->fbLocation = (info->ModeReg.mc_fb_location & 0xffff) << 16;
info->ModeReg.surface_cntl = INREG(RADEON_SURFACE_CNTL);
@@ -7230,6 +7233,8 @@ _X_EXPORT Bool RADEONSwitchMode(int scrnIndex, DisplayModePtr mode, int flags)
RADEONSaveFBDevRegisters(pScrn, &info->ModeReg);
ret = fbdevHWSwitchMode(scrnIndex, mode, flags);
+ pScrn->displayWidth = fbdevHWGetLineLength(pScrn)
+ / info->CurrentLayout.pixel_bytes;
RADEONRestoreFBDevRegisters(pScrn, &info->ModeReg);
} else {