If fbdev uses a shadow framebuffer, call the damage handler. Otherwise the update might not make it to the screen.
Signed-off-by: Thomas Zimmermann <[email protected]> Fixes: 222ec45f4c69 ("drm/fb_helper: Support framebuffers in I/O memory") Cc: Thomas Zimmermann <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Sam Ravnborg <[email protected]> Cc: Maarten Lankhorst <[email protected]> Cc: Maxime Ripard <[email protected]> Cc: David Airlie <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Gerd Hoffmann <[email protected]> Cc: [email protected] Cc: [email protected] --- drivers/gpu/drm/drm_fb_helper.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 25edf670867c..ee1a19e22df2 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -2189,6 +2189,9 @@ static ssize_t drm_fbdev_fb_write(struct fb_info *info, const char __user *buf, if (ret > 0) *ppos += ret; + if (ret > 0) + drm_fb_helper_dirty(info, 0, 0, info->var.xres, info->var.yres); + return ret ? ret : err; } -- 2.29.2 _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
