<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:10pt">I mean that I can type, move the mouse pointer, open new windows but there is a lag until these changes are displayed. Stuttering like.<br><br>I ended up not reverting the aforementioned commit but modifying it. This also solves the issue. Here is the patch:<br><br><div style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"><span style="font-size: 13px;"><span><span><span><span style="font-family: arial,helvetica,sans-serif;">diff -rupN a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c<br>--- a/drivers/gpu/drm/drm_crtc_helper.c 2013-02-19 00:58:34.000000000 +0100<br>+++ b/drivers/gpu/drm/drm_crtc_helper.c 2013-04-05 23:10:36.454936677 +0200<br>@@ -1067,7 +1067,7 @@ void
drm_helper_hpd_irq_event(struct drm<br> enum drm_connector_status old_status;<br> bool changed = false;<br> <br>- if (!dev->mode_config.poll_enabled)<br>+ if (!dev->mode_config.poll_enabled || !drm_kms_helper_poll)<br> return;<br> <br> mutex_lock(&dev->mode_config.mutex);</span></span></span></span></span><br><br> </div> </div> </div></body></html>