On Mon, Jul 6, 2015 at 16:44:37 +0100, olsen wrote: > Package: xserver-xorg-video-intel > Version: 2:2.99.917-1~bpo8+1 > Severity: important > > Dear Maintainer, > > *** Reporter, please consider answering these questions, where appropriate *** > > * What led up to the situation? > The problem becomes apparent for example if I start chromium and try to move the whole browser window by holding down the alt key + the mouse, resulting in almost slow motion. > Similar effects with Iceweasel on various websites e.g. googlemaps. This is after a fresh reboot. > Furthermore I noticed after a couple of resumes I can't play videos with the default settings any more, e.g. in mplayer only with the -xv X11 option. > * What exactly did you do (or not do) that was effective (or > ineffective)? > I switched from testing to experimental (xserver-xorg-video-intel 2:2.99.917-1~bpo8+1) both with "uxa" acceleration in /etc/X11/xorg.conf.d/20-intel.conf as follows: > Section "Device" > Identifier "Intel Graphics" > Driver "intel" > Option "AccelMethod" "uxa" > EndSection > * What was the outcome of this action? > Slightly better performance but the issue still remains, especially the loss of the acceleration after resumes. > * What outcome did you expect instead? > No loss of the hardware acceleration > Does that also happen with a newer kernel and/or mesa? Cheers, Julien
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