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
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