Date: Mon, 13 Jul 2015 20:42:40 -0400 From: Eric McCorkle <eric@metricspace.net> To: freebsd-multimedia@freebsd.org Subject: Suspend/resume screen issue Message-ID: <55A45B00.6090906@metricspace.net>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --l3lI7oW6lXibFrdNR1s9pBpSe1IeMpaIQ Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi folks, I've got a long-standing issue where my screen won't come back on after a resume (Lenovo W540, haswell graphics). The conditions are a bit weird= : * The screen used to come back up with sc in pixel mode, until r274386. Log output shows the VGA driver failing to save the state after that patch (the patch affects how devices are powered down/up, but it's not immediately obvious how this translates into the vga driver failing to save its state) * The screen never worked with vt, either with vga or efifb, or with sc in text mode. This further suggests some kind of issue with saving and restoring video state. Based on these clues, I'd say the video state isn't getting saved and restored properly (there aren't any messages in the logs with vt about saving and restoring video state, so I can't tell). Is this reasoning completely off? If not, what would be the best way to go about further diagnosing the issue based on this evidence? Thanks, Eric --l3lI7oW6lXibFrdNR1s9pBpSe1IeMpaIQ 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 iQIcBAEBAgAGBQJVpFsFAAoJECuREQPg1IcEKTUP/j4a4E2nt25OK2u38Kz7LZAM 6ogLWu7cbsmxTpGPlyi5Y2N07k24N3HPhcjjuPYW6R/klYodwRp0qIliPRgUX6Hg lRrp8ERC0DU0hTTSjrwwPKKO7PTcG36/0jOrmTjq7FNmH2/quZJprosyBD0M7tCg hBP9XIWDTSK+kOVWFPUANl94NPOXYUh89TfSp9ZDAlCNbAtLra2Nkq6qh4Qf1bgf 0jRby0scz8skChPdZ/Rt6YK9URHalUI7g7+jZFqS9D74Azq4ZAuEXwfU9t39YnOB i2PAcYTZhL+Qx3983EUx/2YBY8gTc7JrDioj+qgK83AkLNwwTbmD7KzR3ECyZUWJ QgDRV8dpjEUDVMoOXLLz5v8xaC6nwyD2ldgW4bL8wRbzMPhv9rgHW5HEMIsm9N/m 0fGcx9J13WsRQDXKzQIIcyDlbagDTm0oPfGqE07dYcISc5AHs2hyeau+4R12I7db 6AcJfZ4UXTcBJ019fN5F0HHZb3PLlGtCTlpZJijw650vNCau08qjp6MjPAzD0ic3 ErypEH34uAOd2MJU3vktsPF0qz+xS/SRq9JYmbG76e7tRdWv3STZdOyOgYPxrE90 eyo+k9gaA+ob2cQ40igZOCdYyQUtaaSaVXM52ReYYc8VdgYHtAuRDc5/lZFHBFgG Y/wKQkF/bFxJKn9nEzFl =dYdC -----END PGP SIGNATURE----- --l3lI7oW6lXibFrdNR1s9pBpSe1IeMpaIQ--
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