Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754618AbaFYSuw (ORCPT ); Wed, 25 Jun 2014 14:50:52 -0400 Received: from iolanthe.rowland.org ([192.131.102.54]:53219 "HELO iolanthe.rowland.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1750745AbaFYSuv (ORCPT ); Wed, 25 Jun 2014 14:50:51 -0400 Date: Wed, 25 Jun 2014 14:50:50 -0400 (EDT) From: Alan Stern X-X-Sender: stern@iolanthe.rowland.org To: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= cc: Daniel Vetter , intel-gfx , Kernel development list Subject: Re: [Intel-gfx] Regression in i915 driver in 3.16-rc2 In-Reply-To: <20140625182609.GY27580@intel.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 25 Jun 2014, Ville [iso-8859-1] Syrj?l? wrote: > On Wed, Jun 25, 2014 at 02:06:55PM -0400, Alan Stern wrote: > > Daniel: > > > > I encountered a new problem in the i915 driver the first time I booted > > a 3.16-rc kernel on this computer. When it switched over to the frame > > buffer driver, the screen went blank and stayed that way. > > > > 3.15 works okay. > > > > Attached are log extracts from 3.15 and 3.16 (both with drm.debug=0xe > > in the boot command line). The timestamps have been stripped out for > > easy diff comparison. These are the result of > > > > dmesg | egrep 'drm|i915|frame' > > > > with a couple of irrelevant lines removed. I can send the complete > > logs if you need them. > > > > Alan Stern > > > Kernel command line: BOOT_IMAGE=/boot/test-3.x root=/dev/hda8 ro console=ttyS0,115200 console=tty0 earlyprintk=serial,ttyS0,115200 no_console_suspend drm.debug=0xe vconsole.keymap=us vconsole.font=latarcyrheb-sun16 LANG=en_US.UTF-8 usbcore.dyndbg=+p ehci_hcd.dyndbg=+p > > [drm] Initialized drm 1.1.0 20060810 > > [drm:i915_dump_device_info] i915 device info: gen=2, pciid=0x2572 flags=has_overlay,overlay_needs_physical, > > [drm:intel_detect_pch] No PCH found. > > [drm] Memory usable by graphics device = 128M > > [drm:i915_gem_gtt_init] GMADR size = 128M > > [drm:i915_gem_gtt_init] GTT stolen size = 8M > > [drm:i915_gem_gtt_init] ppgtt mode: 0 > > [drm:intel_opregion_setup] graphic opregion physical addr: 0x0 > > [drm:intel_opregion_setup] ACPI OpRegion not supported! > > [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). > > [drm] Driver supports precise vblank timestamp query. > > [drm:init_vbt_defaults] Set default to SSC at 66667 kHz > > [drm:parse_general_features] BDB_GENERAL_FEATURES int_tv_support 1 int_crt_support 0 lvds_use_ssc 0 lvds_ssc_freq 48000 display_clock_mode 0 fdi_rx_polarity_inverted 0 > ^^^^^^^^^^^^^^^^^ > > This should get your display back: > http://patchwork.freedesktop.org/patch/28508/ It did indeed. Thank you very much. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/