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-rw-r--r--drivers/video/modedb.c41
1 files changed, 29 insertions, 12 deletions
diff --git a/drivers/video/modedb.c b/drivers/video/modedb.c
index f7f9c087ad7..03b06aa2475 100644
--- a/drivers/video/modedb.c
+++ b/drivers/video/modedb.c
@@ -606,26 +606,43 @@ done:
DPRINTK("Trying specified video mode%s %ix%i\n",
refresh_specified ? "" : " (ignoring refresh rate)", xres, yres);
- diff = refresh;
+ if (!refresh_specified) {
+ /*
+ * If the caller has provided a custom mode database and a
+ * valid monspecs structure, we look for the mode with the
+ * highest refresh rate. Otherwise we play it safe it and
+ * try to find a mode with a refresh rate closest to the
+ * standard 60 Hz.
+ */
+ if (db != modedb &&
+ info->monspecs.vfmin && info->monspecs.vfmax &&
+ info->monspecs.hfmin && info->monspecs.hfmax &&
+ info->monspecs.dclkmax) {
+ refresh = 1000;
+ } else {
+ refresh = 60;
+ }
+ }
+
+ diff = -1;
best = -1;
for (i = 0; i < dbsize; i++) {
- if (name_matches(db[i], name, namelen) ||
- (res_specified && res_matches(db[i], xres, yres))) {
- if(!fb_try_mode(var, info, &db[i], bpp)) {
- if(!refresh_specified || db[i].refresh == refresh)
- return 1;
- else {
- if(diff > abs(db[i].refresh - refresh)) {
- diff = abs(db[i].refresh - refresh);
- best = i;
- }
+ if ((name_matches(db[i], name, namelen) ||
+ (res_specified && res_matches(db[i], xres, yres))) &&
+ !fb_try_mode(var, info, &db[i], bpp)) {
+ if (refresh_specified && db[i].refresh == refresh) {
+ return 1;
+ } else {
+ if (abs(db[i].refresh - refresh) < diff) {
+ diff = abs(db[i].refresh - refresh);
+ best = i;
}
}
}
}
if (best != -1) {
fb_try_mode(var, info, &db[best], bpp);
- return 2;
+ return (refresh_specified) ? 2 : 1;
}
diff = xres + yres;