[PATCH] gpu/nouveau/nouveau_acpi.c: Fix Type Mismatch ACPI warning
nouveau_optimus_dsm is using ACPI_TYPE_BUFFER, and this triggers warnings on
ACPI:
[7.730564] ACPI: \_SB_.PCI0.RP05.PEGP: failed to evaluate _DSM
[7.730570] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
To fix it, change ACPI_TYPE_BUFFER to ACPI_TYPE_PACKAGE, as the warning tells
to do.
Signed-off-by: Marcos Paulo de Souza
---
After booting my Asus Laptop, and after a suspend/resume too, dmesg shows
warnings:
[1.633361] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[1.633434] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[7.730176] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[7.730564] ACPI: \_SB_.PCI0.RP05.PEGP: failed to evaluate _DSM
[7.730570] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 49.732059] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 49.732424] ACPI: \_SB_.PCI0.RP05.PEGP: failed to evaluate _DSM
[ 49.732430] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 74.366300] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 74.366657] ACPI: \_SB_.PCI0.RP05.PEGP: failed to evaluate _DSM
[ 74.33] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 140.357789] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
[ 140.358532] ACPI: \_SB_.PCI0.RP05.PEGP: failed to evaluate _DSM
[ 140.358547] ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95)
I don't know if this is the right thing to do, I just looked at intel_acpi.c to
check how to use/check for ACPI Package.
The patch below silenced the "type mismatch" warnings, and some of the
"evaluated _DSM" ones.
If this is not the right approach, please let me know how to fix it, I don't
have knowledge in ACPI, but I really want to help.
drivers/gpu/drm/nouveau/nouveau_acpi.c | 14 +-
1 file changed, 1 insertion(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c
b/drivers/gpu/drm/nouveau/nouveau_acpi.c
index cdf5227..f04aef3 100644
--- a/drivers/gpu/drm/nouveau/nouveau_acpi.c
+++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c
@@ -73,22 +73,10 @@ static const char nouveau_op_dsm_muid[] = {
static int nouveau_optimus_dsm(acpi_handle handle, int func, int arg, uint32_t
*result)
{
- int i;
union acpi_object *obj;
- char args_buff[4];
- union acpi_object argv4 = {
- .buffer.type = ACPI_TYPE_BUFFER,
- .buffer.length = 4,
- .buffer.pointer = args_buff
- };
-
- /* ACPI is little endian, AABBCCDD becomes {DD,CC,BB,AA} */
- for (i = 0; i < 4; i++)
- args_buff[i] = (arg >> i * 8) & 0xFF;
-
*result = 0;
obj = acpi_evaluate_dsm_typed(handle, nouveau_op_dsm_muid, 0x0100,
- func, &argv4, ACPI_TYPE_BUFFER);
+ func, NULL, ACPI_TYPE_PACKAGE);
if (!obj) {
acpi_handle_info(handle, "failed to evaluate _DSM\n");
return AE_ERROR;
--
2.5.5
max PWM is zero
Hi lkml, I'm using the kernel 3.2-rc1 and I'm getting the following message in my dmesg: fixme: max PWM is zero. I don't remember if this message was here before... I'm trying to verify what is causing this. I found this waring message in the drivers/gpu/drm/i915/intel_panel.c. There is a comment above this message, talking about put a code to query mode clock or hw clock to set the max PWM. Bellow is my lspci. I will be happy if you continue to cc me, and if you need any test, I'm able to do this. 00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 09) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, fast devsel, latency 0 Capabilities: [e0] Vendor Specific Information: Len=0a Kernel driver in use: agpgart-intel Kernel modules: intel-agp 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, fast devsel, latency 0, IRQ 44 Memory at f800 (64-bit, non-prefetchable) [size=4M] Memory at d000 (64-bit, prefetchable) [size=256M] I/O ports at 1800 [size=8] Expansion ROM at [disabled] Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [d0] Power Management version 3 Kernel driver in use: i915 Kernel modules: i915 00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 09) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, fast devsel, latency 0 Memory at f840 (64-bit, non-prefetchable) [size=1M] Capabilities: [d0] Power Management version 3 00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03) (prog-if 00 [UHCI]) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, medium devsel, latency 0, IRQ 16 I/O ports at 1820 [size=32] Capabilities: [50] PCI Advanced Features Kernel driver in use: uhci_hcd 00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03) (prog-if 00 [UHCI]) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, medium devsel, latency 0, IRQ 21 I/O ports at 1840 [size=32] Capabilities: [50] PCI Advanced Features Kernel driver in use: uhci_hcd 00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03) (prog-if 00 [UHCI]) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, medium devsel, latency 0, IRQ 19 I/O ports at 1860 [size=32] Capabilities: [50] PCI Advanced Features Kernel driver in use: uhci_hcd 00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03) (prog-if 20 [EHCI]) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, medium devsel, latency 0, IRQ 19 Memory at f8704000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features Kernel driver in use: ehci_hcd 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, fast devsel, latency 0, IRQ 43 Memory at f870 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [100] Virtual Channel Capabilities: [130] Root Complex Link Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel 00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=02, subordinate=03, sec-latency=0 I/O behind bridge: 2000-2fff Memory behind bridge: f400-f5ff Prefetchable memory behind bridge: f000-f1ff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Gammagraphx, Inc. (or missing ID) Device Capabilities: [a0] Power Management version 2 Capabilities: [100] Virtual Channel Capabilities: [180] Root Complex Link Kernel driver in use: pcieport Kernel modules: shpchp 00:1c.5 PCI bridge: Intel Corporation 82801I (
Re: max PWM is zero
So, anybody gets the same message? I'm trying the 3.2-rc2 and it gives the same message. Again, if you need someone to make tests, or test some patches, I'm able to do this. * Uma vida sem desafios é uma vida sem razão * * A life without challanges is a non reason life * On Tue, 15 Nov 2011, Marcos Paulo de Souza wrote: Hi lkml, I'm using the kernel 3.2-rc1 and I'm getting the following message in my dmesg: fixme: max PWM is zero. I don't remember if this message was here before... I'm trying to verify what is causing this. I found this waring message in the drivers/gpu/drm/i915/intel_panel.c. There is a comment above this message, talking about put a code to query mode clock or hw clock to set the max PWM. Bellow is my lspci. I will be happy if you continue to cc me, and if you need any test, I'm able to do this. 00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 09) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, fast devsel, latency 0 Capabilities: [e0] Vendor Specific Information: Len=0a Kernel driver in use: agpgart-intel Kernel modules: intel-agp 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, fast devsel, latency 0, IRQ 44 Memory at f800 (64-bit, non-prefetchable) [size=4M] Memory at d000 (64-bit, prefetchable) [size=256M] I/O ports at 1800 [size=8] Expansion ROM at [disabled] Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [d0] Power Management version 3 Kernel driver in use: i915 Kernel modules: i915 00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 09) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, fast devsel, latency 0 Memory at f840 (64-bit, non-prefetchable) [size=1M] Capabilities: [d0] Power Management version 3 00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03) (prog-if 00 [UHCI]) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, medium devsel, latency 0, IRQ 16 I/O ports at 1820 [size=32] Capabilities: [50] PCI Advanced Features Kernel driver in use: uhci_hcd 00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03) (prog-if 00 [UHCI]) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, medium devsel, latency 0, IRQ 21 I/O ports at 1840 [size=32] Capabilities: [50] PCI Advanced Features Kernel driver in use: uhci_hcd 00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03) (prog-if 00 [UHCI]) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, medium devsel, latency 0, IRQ 19 I/O ports at 1860 [size=32] Capabilities: [50] PCI Advanced Features Kernel driver in use: uhci_hcd 00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03) (prog-if 20 [EHCI]) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, medium devsel, latency 0, IRQ 19 Memory at f8704000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features Kernel driver in use: ehci_hcd 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, fast devsel, latency 0, IRQ 43 Memory at f870 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [100] Virtual Channel Capabilities: [130] Root Complex Link Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel 00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=02, subordinate=03, sec-latency=0 I/O behind bridge: 2000-2fff Memory behind bridge: f400-f5ff Prefetchable memory behind bridge: f000-f1ff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI
Re: max PWM is zero
Hi Keith, On Sat, 19 Nov 2011, Keith Packard wrote: On Sat, 19 Nov 2011 11:26:07 + (Local time zone must be set--see zic manual page), Marcos Paulo de Souza wrote: So, anybody gets the same message? I'm trying the 3.2-rc2 and it gives the same message. Again, if you need someone to make tests, or test some patches, I'm able to do this. Is your machine even using the intel backlight device? You can test this by: # cd /sys/class/backlight/intel_backlight Then look at 'max_brightness' and try echoing a range of numbers from 0 to max_brightness into the brightness file and see if it changes the backlight. My max_brightness is 1, and my brightness is 0. But, my acpi_video0 have a max_brightness value = 9... It's more than possible that your machine is simply using some other hardware to drive the backlight and that the integrated backlight controller is simply disabled. So, what can I do to silence this warning...? Change the driver of backlight? -- keith.pack...@intel.com ___ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel
[PATCH 02/12] drivers: gpu: drm: gma500: mdfld_dsi_output.h: Remove not unneeded include of version.h
The output of "make versioncheck" points a incorrect include of version.h in the drivers/gpu/drm/gma500/mdfld_dsi_output.h: drivers/gpu/drm/gma500/mdfld_dsi_output.h: 32 linux/version.h not needed. If we take a look in the file, we can agree to remove it. Cc: David Airlie Cc: Signed-off-by: Marcos Paulo de Souza --- drivers/gpu/drm/gma500/mdfld_dsi_output.h |1 - 1 files changed, 0 insertions(+), 1 deletions(-) diff --git a/drivers/gpu/drm/gma500/mdfld_dsi_output.h b/drivers/gpu/drm/gma500/mdfld_dsi_output.h index 21071ce..36eb074 100644 --- a/drivers/gpu/drm/gma500/mdfld_dsi_output.h +++ b/drivers/gpu/drm/gma500/mdfld_dsi_output.h @@ -29,7 +29,6 @@ #define __MDFLD_DSI_OUTPUT_H__ #include -#include #include #include #include -- 1.7.7.6 ___ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel
[PATCH 02/12] drivers: gpu: drm: gma500: mdfld_dsi_output.h: Remove not unneeded include of version.h
The output of "make versioncheck" points a incorrect include of version.h in the drivers/gpu/drm/gma500/mdfld_dsi_output.h: drivers/gpu/drm/gma500/mdfld_dsi_output.h: 32 linux/version.h not needed. If we take a look in the file, we can agree to remove it. Cc: David Airlie Cc: Signed-off-by: Marcos Paulo de Souza --- drivers/gpu/drm/gma500/mdfld_dsi_output.h |1 - 1 files changed, 0 insertions(+), 1 deletions(-) diff --git a/drivers/gpu/drm/gma500/mdfld_dsi_output.h b/drivers/gpu/drm/gma500/mdfld_dsi_output.h index 21071ce..36eb074 100644 --- a/drivers/gpu/drm/gma500/mdfld_dsi_output.h +++ b/drivers/gpu/drm/gma500/mdfld_dsi_output.h @@ -29,7 +29,6 @@ #define __MDFLD_DSI_OUTPUT_H__ #include -#include #include #include #include -- 1.7.7.6
max PWM is zero
Hi lkml, I'm using the kernel 3.2-rc1 and I'm getting the following message in my dmesg: fixme: max PWM is zero. I don't remember if this message was here before... I'm trying to verify what is causing this. I found this waring message in the drivers/gpu/drm/i915/intel_panel.c. There is a comment above this message, talking about put a code to query mode clock or hw clock to set the max PWM. Bellow is my lspci. I will be happy if you continue to cc me, and if you need any test, I'm able to do this. 00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 09) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, fast devsel, latency 0 Capabilities: [e0] Vendor Specific Information: Len=0a Kernel driver in use: agpgart-intel Kernel modules: intel-agp 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, fast devsel, latency 0, IRQ 44 Memory at f800 (64-bit, non-prefetchable) [size=4M] Memory at d000 (64-bit, prefetchable) [size=256M] I/O ports at 1800 [size=8] Expansion ROM at [disabled] Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [d0] Power Management version 3 Kernel driver in use: i915 Kernel modules: i915 00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 09) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, fast devsel, latency 0 Memory at f840 (64-bit, non-prefetchable) [size=1M] Capabilities: [d0] Power Management version 3 00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03) (prog-if 00 [UHCI]) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, medium devsel, latency 0, IRQ 16 I/O ports at 1820 [size=32] Capabilities: [50] PCI Advanced Features Kernel driver in use: uhci_hcd 00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03) (prog-if 00 [UHCI]) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, medium devsel, latency 0, IRQ 21 I/O ports at 1840 [size=32] Capabilities: [50] PCI Advanced Features Kernel driver in use: uhci_hcd 00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03) (prog-if 00 [UHCI]) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, medium devsel, latency 0, IRQ 19 I/O ports at 1860 [size=32] Capabilities: [50] PCI Advanced Features Kernel driver in use: uhci_hcd 00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03) (prog-if 20 [EHCI]) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, medium devsel, latency 0, IRQ 19 Memory at f8704000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features Kernel driver in use: ehci_hcd 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03) Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 Flags: bus master, fast devsel, latency 0, IRQ 43 Memory at f870 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [100] Virtual Channel Capabilities: [130] Root Complex Link Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel 00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=02, subordinate=03, sec-latency=0 I/O behind bridge: 2000-2fff Memory behind bridge: f400-f5ff Prefetchable memory behind bridge: f000-f1ff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Gammagraphx, Inc. (or missing ID) Device Capabilities: [a0] Power Management version 2 Capabilities: [100] Virtual Channel Capabilities: [180] Root Complex Link Kernel driver in use: pcieport Kernel modules: shpchp 00:1c.5 PCI bridge: Intel Corporation 82801I (ICH9
max PWM is zero
So, anybody gets the same message? I'm trying the 3.2-rc2 and it gives the same message. Again, if you need someone to make tests, or test some patches, I'm able to do this. * Uma vida sem desafios ? uma vida sem raz?o * * A life without challanges is a non reason life * On Tue, 15 Nov 2011, Marcos Paulo de Souza wrote: > Hi lkml, > > I'm using the kernel 3.2-rc1 and I'm getting the following message in my > dmesg: > fixme: max PWM is zero. > > I don't remember if this message was here before... > > I'm trying to verify what is causing this. I found this waring message in the > drivers/gpu/drm/i915/intel_panel.c. > > There is a comment above this message, talking about put a code to query > mode clock or hw clock to set the max PWM. > > Bellow is my lspci. > > I will be happy if you continue to cc me, and if you need any test, I'm able > to do this. > > 00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory > Controller Hub (rev 09) > Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 > Flags: bus master, fast devsel, latency 0 > Capabilities: [e0] Vendor Specific Information: Len=0a > Kernel driver in use: agpgart-intel > Kernel modules: intel-agp > > 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset > Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) > Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 > Flags: bus master, fast devsel, latency 0, IRQ 44 > Memory at f800 (64-bit, non-prefetchable) [size=4M] > Memory at d000 (64-bit, prefetchable) [size=256M] > I/O ports at 1800 [size=8] > Expansion ROM at [disabled] > Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- > Capabilities: [d0] Power Management version 3 > Kernel driver in use: i915 > Kernel modules: i915 > > 00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset > Integrated Graphics Controller (rev 09) > Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 > Flags: bus master, fast devsel, latency 0 > Memory at f840 (64-bit, non-prefetchable) [size=1M] > Capabilities: [d0] Power Management version 3 > > 00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI > Controller #4 (rev 03) (prog-if 00 [UHCI]) > Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 > Flags: bus master, medium devsel, latency 0, IRQ 16 > I/O ports at 1820 [size=32] > Capabilities: [50] PCI Advanced Features > Kernel driver in use: uhci_hcd > > 00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI > Controller #5 (rev 03) (prog-if 00 [UHCI]) > Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 > Flags: bus master, medium devsel, latency 0, IRQ 21 > I/O ports at 1840 [size=32] > Capabilities: [50] PCI Advanced Features > Kernel driver in use: uhci_hcd > > 00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI > Controller #6 (rev 03) (prog-if 00 [UHCI]) > Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 > Flags: bus master, medium devsel, latency 0, IRQ 19 > I/O ports at 1860 [size=32] > Capabilities: [50] PCI Advanced Features > Kernel driver in use: uhci_hcd > > 00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI > Controller #2 (rev 03) (prog-if 20 [EHCI]) > Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 > Flags: bus master, medium devsel, latency 0, IRQ 19 > Memory at f8704000 (32-bit, non-prefetchable) [size=1K] > Capabilities: [50] Power Management version 2 > Capabilities: [58] Debug port: BAR=1 offset=00a0 > Capabilities: [98] PCI Advanced Features > Kernel driver in use: ehci_hcd > > 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio > Controller (rev 03) > Subsystem: FIRST INTERNATIONAL Computer Inc Device 3009 > Flags: bus master, fast devsel, latency 0, IRQ 43 > Memory at f870 (64-bit, non-prefetchable) [size=16K] > Capabilities: [50] Power Management version 2 > Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+ > Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00 > Capabilities: [100] Virtual Channel > Capabilities: [130] Root Complex Link > Kernel driver in use: snd_hda_intel > Kernel modules: snd-hda-intel > > 00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 > (rev 03) (prog-if 00 [Normal decode]) > Flags: bus mast
max PWM is zero
Hi Keith, On Sat, 19 Nov 2011, Keith Packard wrote: > On Sat, 19 Nov 2011 11:26:07 + (Local time zone must be set--see zic > manual page), Marcos Paulo de Souza wrote: >> So, anybody gets the same message? >> >> I'm trying the 3.2-rc2 and it gives the same message. >> >> Again, if you need someone to make tests, or test some patches, I'm >> able to do this. > > Is your machine even using the intel backlight device? You can test this > by: > > # cd /sys/class/backlight/intel_backlight > > Then look at 'max_brightness' and try echoing a range of numbers from 0 > to max_brightness into the brightness file and see if it changes the > backlight. My max_brightness is 1, and my brightness is 0. But, my acpi_video0 have a max_brightness value = 9... > It's more than possible that your machine is simply using some other > hardware to drive the backlight and that the integrated backlight > controller is simply disabled. So, what can I do to silence this warning...? Change the driver of backlight? > -- > keith.packard at intel.com >
