Re: [Intel-gfx] Regression in i915 driver in 3.16-rc2

2014-06-30 Thread Jani Nikula
On Wed, 25 Jun 2014, Alan Stern st...@rowland.harvard.edu wrote:
 On Wed, 25 Jun 2014, Ville [iso-8859-1] Syrjl 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 7 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.

Fix pushed to drm-intel-fixes; expect to land in v3.16-rc4 or v3.16-rc5
at the latest.

Thanks for the report and testing.

BR,
Jani.



 Alan Stern

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Re: [Intel-gfx] Regression in i915 driver in 3.16-rc2

2014-06-25 Thread Ville Syrjälä
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 7 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/

-- 
Ville Syrjälä
Intel OTC
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Re: [Intel-gfx] Regression in i915 driver in 3.16-rc2

2014-06-25 Thread Alan Stern
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 7 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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