<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [SKL] vblank not available on crtc 0, ret=-22 (makes X freeze)" href="https://bugs.freedesktop.org/show_bug.cgi?id=96419#c15">Comment # 15</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [SKL] vblank not available on crtc 0, ret=-22 (makes X freeze)" href="https://bugs.freedesktop.org/show_bug.cgi?id=96419">bug 96419</a> from <a class="email" href="mailto:timur.alperovich@gmail.com" title="Timur Alperovich <timur.alperovich@gmail.com>"> Timur Alperovich</a> <pre>I do not encounter X freezing, but the "vblank not available on crtc 0" shows up on startup using drm-intel-nightly from 07/29/2016. I don't know if this is related or not, but I also encounter mouse cursor issues in Gnome: the cursor leaves trailing marks when moving to the notification bar and flickers when moving over controls. I do not observe these problems using 4.7 rc2 built from the same branch on 06/13/2016. I had the same problems with rc6 and rc7, but was hoping it may be fixed. The cursor also disappears when mousing over chrome tab headers. This makes it fairly difficult to use. Here's an example of what the cursor artifacts look like: <a href="https://goo.gl/photos/MbwQmsjH9fySdqPX9">https://goo.gl/photos/MbwQmsjH9fySdqPX9</a> Let me know what, if any other, debugging information may be useful to reproduce this. This is on Skylake on Dell XPS 13. The cursor artifacts only show up when I connect an external monitor (Dell p2715q). I'm using DP to connect the monitor -- I don't know if that makes a difference.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>