From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?windows-1252?Q?Nicolas_G=F6ddel?= Subject: Re: Artifacts on external monitor with Optimus and GK107 on Thinkpad W530 Date: Tue, 29 Apr 2014 21:10:36 +0200 Message-ID: <535FF92C.7090508@freakscorner.de> References: <535FBAFD.2010300@freakscorner.de> Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <535FBAFD.2010300-WO/VGsxbqFypxiQzEpw4SQ@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org Hi, as additional information here a youtube video showing the problem after cl= osing a vlc window: https://www.youtube.com/watch?v=3D-GWaEo-pEGs Am 29.04.2014 16:45, schrieb Nicolas G=F6ddel: > Hi there, > > last week I installed Ubuntu Gnome 14.04 on my Thinkpad W530. It has the > following specifications: > > Intel Core i7-3820QM > Intel HD 4000 and nVidia Quadro K2000M > 15,6" FHD RGB 1920x1080 > > With "Optimus" enabled in the BIOS, I am able to use the external monitor= via > VGA-1-2. But there are refresh problems only on the external monitor: Mou= se > traces, parts of a window remain on the screen after closing the window, = etc. My > idea was to enable VSync for the external monitor but I don't know how to= enable > this. If you say enabling VSync will not help, maybe you have an other id= ea to > avoid these refresh problems? > > This is what 'glxgears' outputs (First 8 lines the glxgears window was on= the > external screen, last 3 lines the window was on the internal screen): > > nicolas@tp-w530:~$ glxgears > Running synchronized to the vertical refresh. The framerate should be > approximately the same as the monitor refresh rate. > 14814 frames in 5.0 seconds =3D 2962.673 FPS > 16443 frames in 5.0 seconds =3D 3288.454 FPS > 15912 frames in 5.0 seconds =3D 3182.394 FPS > 14498 frames in 5.0 seconds =3D 2898.920 FPS > 13834 frames in 5.0 seconds =3D 2766.738 FPS > 14584 frames in 5.0 seconds =3D 2916.712 FPS > 14802 frames in 5.0 seconds =3D 2960.245 FPS > 11026 frames in 5.0 seconds =3D 2205.070 FPS > 299 frames in 5.0 seconds =3D 59.675 FPS > 299 frames in 5.0 seconds =3D 59.680 FPS > 299 frames in 5.0 seconds =3D 59.676 FPS > > This is how I tested VSync. > > Best Regards, > Nicolas > _______________________________________________ > Nouveau mailing list > Nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org > http://lists.freedesktop.org/mailman/listinfo/nouveau > -- = =97=97=97=97=97=97=97=97=97=97=97=97=97=97=97=97=97=97=97=97=97=97=97=97=97= =97=97=97=97=97=97=97=97=97=97=97=97=97=97=97=97=97=97=97=97=97 Homepage: http://freakscorner.de Facebook: http://www.facebook.com/Bastelkeller Twitter: http://twitter.com/freaks_corner