Running on Debian unstable, with the upgrade to xserver-xorg 2:1.18.0-3 and xserver-xorg-video-intel 2:2.99.917+git20160127-1+b1 I'm experiencing the weirdest rendering corruption, which mostly manifests through a horizontal banding of the display. Snapshots of the correct and glitched display can be found at these imgur links: http://i.imgur.com/V9V8s8h.png http://i.imgur.com/NhNq9OF.png The issue doesn't normally manifest in my setup and with the applications I use, with the only exception of Opera 12, which manifests it quite consistently. Previous versions of the graphics stack on Debian (particularly xserver-xorg-video-intel 2:2.99.917-2 from testing, on pre-1.18 Xorg) work fine. Most interesting, the glitch only manifests when running on AC. If the laptop is on battery, there are no issues. (Reported as Debian bug #813625: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=813625, which include Xorg and dmesg snippet. Shall I attach them to this report as well? Hardware is the IGP of an Intel(R) Core(TM) i7-4712HQ CPU @ 2.30GHz)
Additional information: switching to AccelMethod UXA instead of SNA fixes the problem for me, so it would seem the issue is in the SNA code.
sorry about not taking this up earlier. Please can you test this with latest kernel and xorg-video-intel. There has been many fixes introduced which might resolve your problem.
Giuseppe have you been able to retest with updated kernel and xorg-video-intel? we are sorry we did not responded for a while to your bug. Jari suggested this a month ago, please collaborate with us to help you
Hello, with kernel 4.9 and xserver-xorg-video-intel 2:2.99.917+git20161206-1 and libdrm-intel1 2.4.74-1 the issue seems to be gone. I'm marking the issue RESOLVED FIXED. Thanks for pinging me, for some reason I had missed the previous comment.
(In reply to Giuseppe Bilotta from comment #4) > Hello, with kernel 4.9 and xserver-xorg-video-intel > 2:2.99.917+git20161206-1 and libdrm-intel1 2.4.74-1 the issue seems to be > gone. I'm marking the issue RESOLVED FIXED. Thanks for pinging me, for some > reason I had missed the previous comment. thanks Giuseppe
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