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compositor-fbdev: Instead of less than 1 Hz use default refresh rate 

I ran Weston on a Nexus 4 mobile phone, with a native GNU/Linux userland,
and the latest Android kernel for that device from LineageOS [1].

calculate_refresh_rate() returned 1 (mHz), which gets rounded to 0 Hz later
and results in nothing being drawn to the screen.

This patch makes sure, that there is at least a refresh rate of 1 Hz, because
it returns the default refresh rate of 60 Hz otherwise.

[1]: https://github.com/LineageOS/lge-kernel-mako

Signed-off-by: Oliver Smith <ollieparanoid@bitmessage.ch>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
This commit is contained in:
Oliver Smith 2017-04-17 11:11:00 +00:00 committed by Quentin Glidic
parent 47bbdc7296
commit a5066e00e8
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1 changed files with 2 additions and 1 deletions
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libweston/compositor-fbdev.c
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@ -253,7 +253,8 @@ calculate_refresh_rate(struct fb_var_screeninfo *vinfo)
if (refresh_rate > 200000)
refresh_rate = 200000; /* cap at 200 Hz */
return refresh_rate;
if (refresh_rate >= 1000) /* at least 1 Hz */
return refresh_rate;
}
return 60 * 1000; /* default to 60 Hz */