Index: viaLowLevel.c
===================================================================
--- viaLowLevel.c	(revision 686)
+++ viaLowLevel.c	(working copy)
@@ -277,10 +277,14 @@
 	xl->tsMem.size = 64;
 	xl->tsMem.type = VIA_MEM_VIDEO;
 	if (drmCommandWriteRead(xl->fd, DRM_VIA_ALLOCMEM, &xl->tsMem,
-		sizeof(xl->tsMem)) < 0)
+		sizeof(xl->tsMem)) < 0) {
+	    fprintf(stderr, "DRM_VIA_ALLOCMEM failed size %d\n", sizeof(xl->tsMem));
 	    return ret;
-	if (xl->tsMem.size != 64)
+	}
+	if (xl->tsMem.size != 64) {
+	    fprintf(stderr, "error: tsMem.size is %d\n", xl->tsMem.size);
 	    return -1;
+	}
 	xl->tsOffset = (xl->tsMem.offset + 31) & ~31;
 	xl->tsP = (CARD32 *) xl->fbAddress + (xl->tsOffset >> 2);
 	xl->curTimeStamp = 1;
@@ -1014,8 +1018,10 @@
 
     xl = (XvMCLowLevel *) malloc(sizeof(XvMCLowLevel));
 
-    if (!xl)
+    if (!xl) {
+	fprintf(stderr, "malloc failed\n");
 	return NULL;
+    }
 
     xl->agp_pos = 0;
     xl->pci_pos = 0;
@@ -1031,6 +1037,7 @@
     xl->agpSync = 0;
     ret = viaDMAInitTimeStamp(xl);
     if (ret) {
+	fprintf(stderr, "viaDMAInitTimeStamp failed with code %d\n", ret);
 	free(xl);
 	return NULL;
     }
Index: viaLowLevelPro.c
===================================================================
--- viaLowLevelPro.c	(revision 686)
+++ viaLowLevelPro.c	(working copy)
@@ -1467,6 +1467,9 @@
 
 	if (((ret = drmCommandWriteRead(xl->fd, DRM_VIA_ALLOCMEM, mem,
 			sizeof(mem))) < 0) || mem->size != size) {
+	    fprintf(stderr, "updateLowLevelBuf failure:\n"
+			    " ret=%d, size=%u, mem->size=%u\n",
+			    ret, size, mem->size);
 	    mem->size = 0;
 	    return -1;
 	}
@@ -1514,6 +1517,7 @@
     drmAddress fbAddress, unsigned fbStride, unsigned fbDepth,
     unsigned width, unsigned height, int useAgp, unsigned chipId)
 {
+    int ret;
     XvMCLowLevel *xl;
     
     if (chipId != PCI_CHIP_VT3259 && chipId != PCI_CHIP_VT3364) {
@@ -1523,13 +1527,18 @@
     }
 
     xl = (XvMCLowLevel *) malloc(sizeof(XvMCLowLevel));
-    if (!xl)
+    if (!xl) {
+	fprintf(stderr, "xl malloc failed\n");
 	return NULL;
+    }
+
     xl->state = ll_init;
 
     xl->agpBuf.buf = (CARD32 *) malloc(LL_AGP_CMDBUF_SIZE * sizeof(CARD32));
-    if (!xl->agpBuf.buf)
+    if (!xl->agpBuf.buf) {
+	fprintf(stderr, "xl->agpBuf.buf malloc failed\n");
 	return releaseXvMCLowLevel(xl);
+    }
     xl->state = ll_agpBuf;
     xl->agpBuf.bufSize = LL_AGP_CMDBUF_SIZE;
     xl->agpBuf.flushFunc = &agpFlush;
@@ -1538,8 +1547,10 @@
     xl->agpBuf.waitFlags = 0;
 
     xl->pciBuf.buf = (CARD32 *) malloc(LL_PCI_CMDBUF_SIZE * sizeof(CARD32));
-    if (!xl->pciBuf.buf)
+    if (!xl->pciBuf.buf) {
+	fprintf(stderr, "xl->pciBuf.buf malloc failed\n");
 	return releaseXvMCLowLevel(xl);
+    }
     xl->state = ll_pciBuf;
     xl->pciBuf.bufSize = LL_PCI_CMDBUF_SIZE;
     xl->pciBuf.flushFunc = &pciFlush;
@@ -1562,15 +1573,19 @@
     xl->agpSync = 0;
     xl->chipId = chipId;
 
-    if (viaDMAInitTimeStamp(xl))
+    if ((ret = viaDMAInitTimeStamp(xl))) {
+	fprintf(stderr, "viaDMAInitTimeStamp failed with code %d\n", ret);	
 	return releaseXvMCLowLevel(xl);
+    }
     xl->state = ll_timeStamp;
 
     xl->scale.mem.size = 0;
     xl->back.mem.size = 0;
 
-    if (updateLowLevelBuf(xl, &xl->scale, width, height))
+    if ((ret = updateLowLevelBuf(xl, &xl->scale, width, height))) {
+	fprintf(stderr, "updateLowLevelBuf failed with code %d\n", ret);
 	return releaseXvMCLowLevel(xl);
+    }
     xl->state = ll_llBuf;
 
 #ifdef VIDEO_DMA