Date: Sat, 5 Apr 2014 10:17:42 +0300 From: Johannes Meixner <xmj@chaot.net> To: freebsd-hackers@freebsd.org Subject: hw.acpi.reset_video behavior when multiple VGA cards are present Message-ID: <20140405071627.GA83459@mx12.chaot.net>
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--pQhZXvAqiZgbeUkD Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, I've originally posted the following to freebsd-acpi@ in February but didn'= t get any replies, so maybe someone here can help me out. I've been trying to work out why my ASUS ZenBook can't work correctly with = S3 sleepstates. Resume works theoretically like a charm (I suspend with music playing; the = music stops and continues upon wakeup; I can reboot the system blindly from comma= nd line).=20 One thing that does not, however, is VGA resume. The screen will just stay blank.=20 So I looked into it a little and realized -- what's the expected behaviour towards video reset when multiple VGA cards are present (NVIDIA Optimus)=20 with vgapci0 being the (unusable) NVIDIA board and vgapci1 the (usable with= =20 Xorg, vt(9), KMS etc) Intel one? As in, which card does `hw.acpi.reset_video` actually reset the video on? Best Johannes --=20 xmj@chaot.net http://xmj.me --pQhZXvAqiZgbeUkD Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (FreeBSD) iQIcBAEBAgAGBQJTP64WAAoJEAy1bITjfmSMsLYQAIqlapkeIyu8YhrhmFSs1H3A vevPSrlohi4YP9dD3a6t8NR4xKjtsC0ZiyUY5erCaI03DhRat8H5OJu3EJNfZbgO 2PgHMcPsd4OiAdYB7zifd0KfyIx31dF6f7Tt8xWqmbYOWqixoOtX0KuMnjIo6VcV CKqNNSCUbUXBv0NKwcIfDsB+tJN/F8qGrCMW6koKVWeZQNVMyTE57u62t4+R9kLT kCfxWNS16aL+Hmbec6h8xr3NVwZLboHBpeX5goXu8s8kBOMeWnkTEph5eGqMeiLw SG8kaazbw9RGk1EtqQ1YEo+2rkU5Ow/6xqFOzcR+8MIpIAzsJu5xPkxnfQTBVfMo V2WFCGVq+n2VBIjLpLiMmDY+jZc/c1H6LCtkE4IRQl5N6auqTEccaoNTPfBT6X4a GYZ4ZlgHm6O+//DsufXGn3nOd4VweRlhlnx4v5dwXpi2muIvMl9aHrbPYzOqS7ra 6YmX7qn+OS0TUo4TT4TdqmtaO8o/gk54MiKjrSTaohubBj0tTE5I7a+eARduSkaT zZxjZfqxEegYdYSUWHSBO365yAijN5Nd7TTwctitcRtaIHVLgx1PgGfxAZp19cpu U55TxoBQIOmYjSnxXAfakJMmGh9SO+DQAmYUlhvY+fz2zir1EE1inCOD81g9MgCI y1Ccl5ZPufcghG8H+lwt =CG7X -----END PGP SIGNATURE----- --pQhZXvAqiZgbeUkD--
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