search for: gmux

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...

Enable GPU switching on the pre-retina MacBook Pro (2008 - 2013), v5. The main obstacle on these machines is that the panel mode in VBIOS is bogus. Fortunately gmux can switch DDC independently from the display, thereby allowing the inactive GPU to probe the panel's EDID. In short, vga_switcheroo and apple-gmux are amended with hooks to switch DDC, DRM core is amended with a drm_get_edid_switcheroo() helper, and relevant drivers are amended to call that f...

The Apple GMUX is the one managing the backlight, so there is no need for Nouveau to register its own backlight interface. v2: Do not split information message on two lines as it prevents from grepping it, as pointed out by Lukas Wunner v3: Add a missing end-of-line character to the printed message Signed-...

From: Pierre Moreau <pierre.morrow at free.fr> The Apple GMUX is the one managing the backlight, so there is no need for Nouveau to register its own backlight interface. v2: Do not split information message on two lines as it prevents from grepping it, as pointed out by Lukas Wunner Signed-off-by: Pierre Moreau <pierre.morrow at free.fr> --- driv...

gmux is a microcontroller built into dual GPU MacBook Pros. On pre-retina MBPs, if we're the inactive GPU, we need apple-gmux to temporarily switch DDC so that we can probe the panel's EDID. The checks for CONFIG_VGA_ARB and CONFIG_VGA_SWITCHEROO are necessary because if either of them is disab...

...er for this series IMHO. (Arguably being able to retrieve EDID but then locking up on switching isn't really worse than not being able to retrieve EDID in the first place.) Thanks, Lukas > > The main obstacle on these machines is that the panel mode in VBIOS > is bogus. Fortunately gmux can switch DDC independently from the > display, thereby allowing the inactive GPU to probe the panel's EDID. > > In short, vga_switcheroo and apple-gmux are amended with hooks to > switch DDC, DRM core is amended with a drm_get_edid_switcheroo() helper, > and relevant drivers a...

...rouble switching off the nvidia chip in my Macbook Pro 9,1. I have tried numerous things but there is a lot of flawed documentation out there on this. I have a pile of info (dmesg, kernel configs and etc) that I would like to submit as a bug reports but no clear place to send it. Who maintains the gmux kernel module? I can't find the proper mailing list. I use nouveau right now but I need to switch off the nvidia chip because of the heat/power it runs when I am not really needing it. PS: Good work on the driver. -Evan Foss -- http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/

The Apple GMUX is the one managing the backlight, so there is no need for Nouveau to register its own backlight interface. v2: Do not split information message on two lines as it prevents from grepping it, as pointed out by Hans de Goede Signed-off-by: Pierre Moreau <pierre.morrow at free.fr> --- drm...

On Sun, Nov 13, 2016 at 08:57:07PM +0100, Pierre Moreau wrote: > From: Pierre Moreau <pierre.morrow at free.fr> > > The Apple GMUX is the one managing the backlight, so there is no need for > Nouveau to register its own backlight interface. > > v2: Do not split information message on two lines as it prevents from grepping > it, as pointed out by Lukas Wunner > > Signed-off-by: Pierre Moreau <pierre.m...

...-signal message on external monitors way before Ben???s patch landed, > but only for some adapters. I haven???t tried Ben???s patch yet, nor > yours, but I will certainly do it, and see what effect each of them has. The external DP port on your MBP5,3 is switchable between GPUs and the apple-gmux driver switches it in unison with the panel. Thus the NVAC cannot drive external displays when gmux is switched to the MCP79. (You probably were aware of this, just wanted to mention it in case you weren't.) (In theory we could change vga_switcheroo and apple-gmux to support switching the pa...

...tcheroo: Constify vga_switcheroo_handler drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c | 2 +- drivers/gpu/drm/nouveau/nouveau_acpi.c | 2 +- drivers/gpu/drm/radeon/radeon_atpx_handler.c | 2 +- drivers/gpu/vga/vga_switcheroo.c | 4 ++-- drivers/platform/x86/apple-gmux.c | 2 +- include/linux/vga_switcheroo.h | 4 ++-- 6 files changed, 8 insertions(+), 8 deletions(-) -- 2.1.0

Hello, By having a look at 'drivers/platform/x86/apple-gmux.c', it seems its author is Seth Forshee <seth.forshee at canonical.com>. Other main contributors are Andreas Heider <andreas at meetr.de>, and Matthew Garrett <mjg at redhat.com>, among others. Pierre Moreau On 11:58 PM - Jul 26 2014, Evan Foss wrote: > Hello, > &gt...

...iff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index d37c0a6..20d5898 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -35,11 +35,9 @@ #include "i915_trace.h" #include "intel_drv.h" -#include <linux/apple-gmux.h> #include <linux/console.h> #include <linux/module.h> #include <linux/pm_runtime.h> -#include <linux/vgaarb.h> #include <linux/vga_switcheroo.h> #include <drm/drm_crtc_helper.h> @@ -1025,13 +1023,7 @@ static int i915_pci_probe(struct pci_dev *pdev, co...

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:

This patch certainly needs some more work, but I'd like to get some comments. Not sure if it is really related to the gmux or if it is a different Optimus _DSM version. I tested it on my laptop (MCP79/7A + G96) and the G96 successfully goes to sleep, however it is still marked as PWR in vga_switcheroo, despite `vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF)` being called. --- drm/nouveau_acpi.c | 94 ++++...

...the display switched to the discrete GPU but it can be forced to the integrated GPU with an EFI boot variable. Here's a handy tool for that: https://github.com/0xbb/gpu-switch v1 didn't work in this configuration, v2 does. * Reprobing if the inactive GPU initializes before the apple-gmux module: v1 used Matthew Garrett's approach of adding a driver callback. v2 simply generates a hotplug event instead. nouveau polls its outputs every 10 seconds so we want it to poll immediately once apple-gmux registers. That is achieved by the hotplug event. The i915 driver is change...

On Thu, Mar 09, 2017 at 04:03:47PM +0100, Daniel Vetter wrote: > On Fri, Feb 24, 2017 at 08:19:45PM +0100, Lukas Wunner wrote: > > Fix Thunderbolt-related issues in apple-gmux and vga_switcheroo: > > > > Patch [1/5] ("Recognize Thunderbolt devices") has already been subjected > > to a fair amount of scrutiny over at linux-pci@, I've submitted it 5 times > > total since May 2016. With luck it may be in ack-able shape now. > >...

The first grep of dmesg is for the apple info so you know exactly what box I have. The second is to show that I am booting in EFI mode and not some bogus bios compatibility thing. The third is to show the gmux version. The fourth is to answer the question you actually asked. $ cat /proc/version Linux version 3.19.0 (root at turingatlarge) (gcc version 4.7.3 (Gentoo 4.7.3-r1 p1.4, pie-0.5.5) ) #3 SMP Sun Feb 15 01:09:59 EST 2015 ------ $ dmesg|grep Apple [ 0.000000] efi: EFI v1.10 by Apple [ 0.000...

...& nouveau_has_dsm()) > runtime = true; > vga_switcheroo_register_client(dev->pdev, &nouveau_switcheroo_ops, > runtime); > > - if (runtime && nouveau_has_mux() && !nouveau_is_optimus()) > + if (runtime && (nouveau_has_mux() || nouveau_has_gmux()) && > !nouveau_is_optimus()) > vga_switcheroo_init_domain_pm_ops(drm->dev->dev, > &drm->vga_pm_domain); > } > > @@ -112,11 +112,11 @@ nouveau_vga_fini(struct nouveau_drm *drm) > > if (nouveau_runtime_pm == 1) > runtime = true; > -...

...rouble switching off the nvidia chip in my Macbook Pro 9,1. I have tried numerous things but there is a lot of flawed documentation out there on this. I have a pile of info (dmesg, kernel configs and etc) that I would like to submit as a bug reports but no clear place to send it. Who maintains the gmux kernel module? I can't find the proper mailing list. I use nouveau right now but I need to switch off the nvidia chip because of the heat/power it runs when I am not really needing it. PS: Good work on the driver.