linux

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History

Linus Torvalds c9354c85c1 i915: fix intel graphics suspend breakage due to resume/lid event confusion In commit `c1c7af6089` ("drm/i915: force mode set at lid open time") the intel graphics driver was taught to restore the LVDS mode on lid open. That caused problems with interaction with the suspend/resume code, which commonly runs at the same time (suspend is often caused by the lid close event, while lid open is commonly a resume event), which was worked around with in commit `06891e27a9` ("drm/i915: fix suspend/resume breakage in lid notifier"). However, in the meantime the lid event code had also grown a user event notifier (commit `06324194ee`: "drm/i915: generate a KMS uevent at lid open/close time"), and now _that_ causes problems with suspend/resume and some versions of Xorg reacting to those uevents by setting the mode. So this effectively reverts that commit `06324194ee`, and makes the lid open protection logic against suspend/resume more explicit. This fixes at least one laptop. See http://bugzilla.kernel.org/show_bug.cgi?id=14484 for more details. Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com> Cc: Eric Anholt <eric@anholt.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-11-02 09:29:55 -08:00
..
i810
i830
i915	i915: fix intel graphics suspend breakage due to resume/lid event confusion	2009-11-02 09:29:55 -08:00
mga	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-09-22 07:51:45 -07:00
r128	drm/r128: Add test for initialisation to all ioctls that require it	2009-08-31 09:09:30 +10:00
radeon	drm/radeon/kms: ignore vga arbiter return.	2009-10-28 11:09:58 +10:00
savage
sis
tdfx
ttm	Merge branch 'drm-next' of ../drm-next into drm-linus	2009-10-08 14:03:05 +10:00
via
ati_pcigart.c
drm_agpsupport.c
drm_auth.c
drm_bufs.c	drm: fix _DRM_GEM addmap error message	2009-09-18 14:34:06 +10:00
drm_cache.c	drm: fix drm_cache.c for arch with no support.	2009-09-02 09:41:13 +10:00
drm_context.c
drm_crtc_helper.c	drm/kms: protect against fb helper not being created.	2009-09-26 06:39:00 +10:00
drm_crtc.c	drm: Delete the DRM_DEBUG_KMS in drm_mode_cursor_ioctl	2009-10-05 10:00:57 +10:00
drm_debugfs.c
drm_dma.c
drm_drawable.c
drm_drv.c
drm_edid.c	drm: Add the basic check for the detailed timing in EDID	2009-10-28 11:23:39 +10:00
drm_encoder_slave.c
drm_fb_helper.c	drm/kms: fix kms/fbdev colormap support properly.	2009-10-28 11:23:48 +10:00
drm_fops.c
drm_gem.c	drm/i915: Improve behaviour under memory pressure	2009-09-17 14:43:32 -07:00
drm_hashtab.c
drm_info.c
drm_ioc32.c
drm_ioctl.c
drm_irq.c	drm/vgaarb: add VGA arbitration support to the drm and kms.	2009-09-21 15:00:27 +10:00
drm_lock.c
drm_memory.c
drm_mm.c	drm/mm: add ability to dump mm lists via debugfs	2009-09-02 09:39:43 +10:00
drm_modes.c	drm/kms: start adding command line interface using fb.	2009-09-25 13:08:20 +10:00
drm_pci.c
drm_proc.c	drm: use proc_create_data()	2009-08-31 09:37:22 +10:00
drm_scatter.c
drm_sman.c
drm_stub.c
drm_sysfs.c	Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6	2009-09-21 08:10:09 -07:00
drm_vm.c	const: mark struct vm_struct_operations	2009-09-27 11:39:25 -07:00
Kconfig	drm/i915: force mode set at lid open time	2009-09-10 16:10:00 -07:00
Makefile	drm/kms: fix kms helper license + Kconfig	2009-09-08 11:15:58 +10:00
README.drm

README.drm

************************************************************
* For the very latest on DRI development, please see:      *
*     http://dri.freedesktop.org/                          *
************************************************************

The Direct Rendering Manager (drm) is a device-independent kernel-level
device driver that provides support for the XFree86 Direct Rendering
Infrastructure (DRI).

The DRM supports the Direct Rendering Infrastructure (DRI) in four major
ways:

    1. The DRM provides synchronized access to the graphics hardware via
       the use of an optimized two-tiered lock.

    2. The DRM enforces the DRI security policy for access to the graphics
       hardware by only allowing authenticated X11 clients access to
       restricted regions of memory.

    3. The DRM provides a generic DMA engine, complete with multiple
       queues and the ability to detect the need for an OpenGL context
       switch.

    4. The DRM is extensible via the use of small device-specific modules
       that rely extensively on the API exported by the DRM module.


Documentation on the DRI is available from:
    http://dri.freedesktop.org/wiki/Documentation
    http://sourceforge.net/project/showfiles.php?group_id=387
    http://dri.sourceforge.net/doc/

For specific information about kernel-level support, see:

    The Direct Rendering Manager, Kernel Support for the Direct Rendering
    Infrastructure
    http://dri.sourceforge.net/doc/drm_low_level.html

    Hardware Locking for the Direct Rendering Infrastructure
    http://dri.sourceforge.net/doc/hardware_locking_low_level.html

    A Security Analysis of the Direct Rendering Infrastructure
    http://dri.sourceforge.net/doc/security_low_level.html