Date: Sun, 11 Oct 2015 21:01:54 +0300 From: Arto Pekkanen <isoa@kapsi.fi> To: =?UTF-8?Q?Juan_Ram=c3=b3n_Molina_Menor?= <listjm@club.fr>, freebsd-x11@freebsd.org, =?UTF-8?Q?Jean-S=c3=a9bastien_P=c3=a9dron?= <jean-sebastien.pedron@dumbbell.fr> Subject: Re: Success! Was: Testing the new i915 driver (HD Graphics 4400) Message-ID: <561AA412.2080700@kapsi.fi> In-Reply-To: <561A88B0.1040101@club.fr> References: <561A88B0.1040101@club.fr>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --m9CfQWCCURUkktUeRrSjQRG0ptMw3mh0U Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Would you like to elaborate on this "High CPU usage when playing videos"?= Did you mean "high CPU usage when compared to previous driver"? Or what = are the exact metrics for this statement? I am a multi-system power user, and I can tell you that in a vanilla Debi= an 8.0 installation with Intel driver, on my Thinkpad T430, Chromium eats= 20%+ CPU when playing HD videos from Youtube. Also, to get rid of video = tearing issues, one need to use x11-wm/compton to do composition in both = FreeBSD and Debian (or any other Linuxen). The compositor causes further = +20-40% CPU usage per OpenGL/GLX process (guaranteed, tested, no workarou= nd). The compositor induced per process overhead could be done away by tw= eaking driver options, compositor configuration etc. but it requires a lo= t of experimentation (and frankly, most people just give up at this point= and learn to live with either high CPU usage or video tearing). In gener= al, most systems using X.org/X11 is really, really awful at video playbac= k when compared to Windows or OS X. This is why there are video accelerat= ion interfaces, such as Intel VAAPI or nVidia VDPAU that negate the CPU o= verhead and eliminate tearing. Plese try VAAPI. You must compile in the VAAPI support in both the player= and the AV codec framework. If you VAAPI helped with the high CPU usage,= a report would be appreciated. On 11.10.2015 19:05, Juan Ram=C3=B3n Molina Menor wrote: >>> With the updated code, kldload i915kms works after some hesitation an= d >>> screen artefacts (images not sent to the list), then X starts and I c= an >>> switch to the console forth and back but as soon as I open a xterm >>> window the computer crashes and reboots. >=20 > The changes made yesterday have resolved the issue of X applications cr= ashing and the light environment I use (CWM, Vimb) has proven to be very = stable. I have been able to play HD videos at full-screen, browse YouTube= , close the Xorg server and launch it again, etc. Normal operation, albei= t the CPU usage seems very high when playing videos. >=20 > Thanks again Jean-S=C3=A9bastien, it is a pleasure to finally use FreeB= SD on my main laptop. >=20 > Best regards, > Juan > _______________________________________________ > freebsd-x11@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-x11 > To unsubscribe, send any mail to "freebsd-x11-unsubscribe@freebsd.org" --m9CfQWCCURUkktUeRrSjQRG0ptMw3mh0U Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (MingW32) iF4EAREIAAYFAlYapBUACgkQTBivhqtJa27TQgEAhsYNFMDQ9l8RbioTnTsj1COE EPDb/F9W2YhhXKg3hBcA+weIbIaxjc5TK1qXc1klfHn7OnFUXRXgaj9yXZG3oJgs =weL4 -----END PGP SIGNATURE----- --m9CfQWCCURUkktUeRrSjQRG0ptMw3mh0U--
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