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SubjectRe: [Linux-fbdev-devel] [PATCH 1/4] fbdev: make fb_find_mode look for a mode with the highest refresh rate
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On Sat, 2007-06-23 at 12:50 +0200, Michal Januszewski wrote:
> If the refresh rate hasn't been explicitly specified, fd_find_mode
> currently returns the first mode with the requested resolution. Change
> it so that it returns a mode with the requested resolution and the
> highest refresh rate.
>
> Also export fb_destroy_modelist, which is used in uvesafb.
>
> Signed-off-by: Michal Januszewski <spock@gentoo.org>
> ---
> drivers/video/modedb.c | 7 +++++--
> 1 files changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/video/modedb.c b/drivers/video/modedb.c
> index 3741ad7..98ee77b 100644
> --- a/drivers/video/modedb.c
> +++ b/drivers/video/modedb.c
> @@ -606,16 +606,18 @@ done:
> DPRINTK("Trying specified video mode%s %ix%i\n",
> refresh_specified ? "" : " (ignoring refresh rate)", xres, yres);
>
> + if (!refresh_specified)
> + refresh = 200;
> diff = refresh;

How about..?

if (!refresh_specified)
diff = 0;
else
diff = refresh;

> 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)
> + if (refresh_specified && db[i].refresh == refresh)
> return 1;
> else {
> - if(diff > abs(db[i].refresh - refresh)) {
> + if (diff > abs(db[i].refresh - refresh)) {
> diff = abs(db[i].refresh - refresh);
> best = i;
> }
then
if (diff < db[i].refresh) {
diff = db[i].refresh;
best = i;
}

Tony


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