similar to: [Bug 31122] New: Cannot control backlight intensity on Powerbook

https://bugs.freedesktop.org/show_bug.cgi?id=39550 Summary: Brightness stuck to low value after suspend/resume Product: xorg Version: unspecified Platform: Other OS/Version: All Status: NEW Severity: normal Priority: medium Component: Driver/nouveau AssignedTo: nouveau at lists.freedesktop.org

Backlights controlled by i915.ko and only associated with its connectors and also only associated with the intel_drmfb fbcon, controlled by i915.ko. In this situation, we already handle adjusting the backlight when the fbcon is blanked/unblanked and do not require backlight trying to do the same. Attempting to register with the fbdev as a client causes lockdep to warn about a dependency cycle: [

On Tue, 12 Jul 2016, Daniel Vetter <daniel at ffwll.ch> wrote: > On Thu, Jun 30, 2016 at 12:30:56PM +0100, Chris Wilson wrote: >> Backlights controlled by i915.ko and only associated with its connectors >> and also only associated with the intel_drmfb fbcon, controlled by >> i915.ko. In this situation, we already handle adjusting the backlight >> when the fbcon is

On 13.09.2014 23:45, Roy Spliet wrote: > Dear Poma, > > Don't get anyone wrong, your input is greatly valued. The reason why > "we" (nouveau developers) generally ask for a git bisection is because > we don't know or track specific distributions. Although your search has > narrowed the problem down (thanks for that!), we don't know how big the >

Forward declare struct backlight_device and remove the include statement. Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de> Reviewed-by: Jani Nikula <jani.nikula at intel.com> --- include/linux/fb.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/fb.h b/include/linux/fb.h index 2ce2f5c2fca9a..7380d959c5d53 100644 --- a/include/linux/fb.h +++

https://bugs.freedesktop.org/show_bug.cgi?id=86539 Bug ID: 86539 Summary: [NVAC] Trying to register nv_backlight after NV96 did it Product: xorg Version: git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component:

Currently, every backlight interface created by Nouveau uses the same name, nv_backlight. This leads to a sysfs warning as it tries to create an already existing folder. This patch adds a incremented number to the name, but keeps the initial name as nv_backlight, to avoid possibly breaking userspace; the second interface will be named nv_backlight1, and so on. Fixes: fdo#86539 Signed-off-by:

The Apple GMUX is the one managing the backlight, so there is no need for Nouveau to register its own backlight interface. Signed-off-by: Pierre Moreau <pierre.morrow at free.fr> --- drm/nouveau/nouveau_backlight.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drm/nouveau/nouveau_backlight.c b/drm/nouveau/nouveau_backlight.c index 41330e4..94ac3cb 100644 ---

Hi, I'm trying to bring devs to support for backlight on nv50 cards for above 1 year, without any success A lot of laptop (from mac, hp, samsung) doesn't have laptop_panel in hal, and therefore no support for acpi/backlight..., and no entry in /proc/acpi/video nor /sys/class/backlight Kernel team is not reacting, hal team won't fix, devicekit need standardise i/o... I've

Hi I've taken apart a 7960 to fit a backlight to the LCD. Would others on the list be interested in this as a project when I've finished (i.e. should I document and photo all the stages)? Also I can source some 7960's at a very good price but what are the rules about posting this information on the list if others were interested? P

This series fixes some issues with nouveau's backlight support that were causing kernel panics on module reloads, specifically on systems with nouveau handling the backlight of one of the displays. While we're at it, let's cleanup nouveau_backlight.c as well Lyude Paul (5): drm/nouveau: Check backlight IDs are >= 0, not > 0 drm/nouveau: Move backlight device into

Remove unnecessary dependencies in the include statements of the header file <linux/fb.h>. Several files throughout the kernel include the fbdev header, so reducing dependencies positively affects other subsystems as well. Also fix up corgi-lcd, nouveau and fbtft, which need backlight.h in some of their source files. v3: * include backlight.h in corgi-lcd (kernel test robot) * grammar

Next version of https://patchwork.freedesktop.org/series/48596/ . Added NV_INFO_ONCE and made "Move backlight device into nouveau_connector" use that instead so we don't print the GMUX warning more then once. Lyude Paul (5): drm/nouveau: Add NV_PRINTK_ONCE and variants drm/nouveau: Move backlight device into nouveau_connector drm/nouveau:

Next version of https://patchwork.freedesktop.org/series/48596/ . Made some important changes to the refactoring patch, but everything else is the same. Lyude Paul (5): drm/nouveau: Check backlight IDs are >= 0, not > 0 drm/nouveau: Move backlight device into nouveau_connector drm/nouveau: s/nouveau_backlight_exit/nouveau_backlight_fini/ drm/nouveau: Cleanup indenting in

Forgot to send 6 patches instead of five since there's one new one now, whoops! No actual changes, next version of https://patchwork.freedesktop.org/series/48596/ Lyude Paul (6): drm/nouveau: Check backlight IDs are >= 0, not > 0 drm/nouveau: Add NV_PRINTK_ONCE and variants drm/nouveau: Move backlight device into nouveau_connector drm/nouveau:

From: Dave Airlie <airlied at redhat.com> This is preperation for the backlight support code. Signed-off-by: Dave Airlie <airlied at redhat.com> --- src/drmmode_display.c | 54 ++++++++++++++++++++++++++++++++------------------- 1 file changed, 34 insertions(+), 20 deletions(-) diff --git a/src/drmmode_display.c b/src/drmmode_display.c index 6033a6d..ad7bc1f 100644 ---

Refactor for Ben, hopefully this time this should apply to his tree. Next version of https://patchwork.freedesktop.org/series/48596/ No changes otherwise. Lyude Paul (6): drm/nouveau: Check backlight IDs are >= 0, not > 0 drm/nouveau: Add NV_PRINTK_ONCE and variants drm/nouveau: Move backlight device into nouveau_connector drm/nouveau:

Remove unnecessary dependencies in the include statements of the header file <linux/fb.h>. Several files throughout the kernel include the fbdev header, so reducing dependencies positively affects other subsystems as well. Also fix up nouveau and fbtft, which need backlight.h in some their source files. v2: * include backlight.h in fbtft (kernel test robot) Thomas Zimmermann (8):

From: Pierre Moreau <pierre.morrow at free.fr> Currently, every backlight interface created by Nouveau uses the same name, nv_backlight. This leads to a sysfs warning as it tries to create an already existing folder. This patch adds a incremented number to the name, but keeps the initial name as nv_backlight, to avoid possibly breaking userspace; the second interface will be named

How do I disable /usr/libexec/gsd-backlight-helper on a user's WORKSTATION? This is clearly something that should NEVER, EVER be running if it's not a laptop.... mark