Hi,
When using more than one monitor, the card uses higher clocks than in single-monitor mode and low-power profile. As a subjectively negative side-effect, the fan on the card starts making more noise. Other cards I used before had no problem with staying quiet even when more monitors were attached.
As soon as I switch back to single-monitor mode, clocks go down and the card becomes silent again.
Is there a way to manually force lower clock speeds, and therefore reach an acceptable noise level? Maybe make it use the same power profile settings in dual-monitor as in single-monitor?
Dual-monitor mode:
~ $ cat /sys/class/drm/card0/device/power_profile low
~ $ cat /sys/kernel/debug/dri/0/radeon_pm_info default engine clock: 800000 kHz current engine clock: 799940 kHz default memory clock: 1250000 kHz current memory clock: 1250000 kHz voltage: 1060 mV
Single-monitor mode:
~ $ cat /sys/class/drm/card0/device/power_profile low
~ $ cat /sys/kernel/debug/dri/0/radeon_pm_info default engine clock: 800000 kHz current engine clock: 249990 kHz default memory clock: 1250000 kHz current memory clock: 150000 kHz voltage: 900 mV
Regards, Harald
On 12/20/11 1:38 PM, Harald Judt wrote:
Hi,
When using more than one monitor, the card uses higher clocks than in single-monitor mode and low-power profile. As a subjectively negative side-effect, the fan on the card starts making more noise. Other cards I used before had no problem with staying quiet even when more monitors were attached.
As soon as I switch back to single-monitor mode, clocks go down and the card becomes silent again.
Is there a way to manually force lower clock speeds, and therefore reach an acceptable noise level? Maybe make it use the same power profile settings in dual-monitor as in single-monitor?
It really depends on what kind of power profiles the device exposes. Boot with drm.debug=0x2 and they'll be in dmesg.
- ajax
Am 20.12.2011 21:20, schrieb Adam Jackson:
On 12/20/11 1:38 PM, Harald Judt wrote:
Hi,
When using more than one monitor, the card uses higher clocks than in single-monitor mode and low-power profile. As a subjectively negative side-effect, the fan on the card starts making more noise. Other cards I used before had no problem with staying quiet even when more monitors were attached.
As soon as I switch back to single-monitor mode, clocks go down and the card becomes silent again.
Is there a way to manually force lower clock speeds, and therefore reach an acceptable noise level? Maybe make it use the same power profile settings in dual-monitor as in single-monitor?
It really depends on what kind of power profiles the device exposes. Boot with drm.debug=0x2 and they'll be in dmesg.
- ajax
Here we go:
[drm] Initialized drm 1.1.0 20060810 [drm] radeon defaulting to kernel modesetting. [drm] radeon kernel modesetting enabled. radeon 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 radeon 0000:01:00.0: setting latency timer to 64 [drm] initializing kernel modesetting (CAYMAN 0x1002:0x6719 0x1002:0x0B00). [drm] register mmio base: 0xFE620000 [drm] register mmio size: 131072 ATOM BIOS: CAYMAN radeon 0000:01:00.0: VRAM: 2048M 0x0000000000000000 - 0x000000007FFFFFFF (2048M used) radeon 0000:01:00.0: GTT: 512M 0x0000000080000000 - 0x000000009FFFFFFF mtrr: type mismatch for c0000000,10000000 old: write-back new: write-combining [drm] Detected VRAM RAM=2048M, BAR=256M [drm] RAM width 256bits DDR [TTM] Zone kernel: Available graphics memory: 8209192 kiB. [TTM] Zone dma32: Available graphics memory: 2097152 kiB. [TTM] Initializing pool allocator. [drm] radeon: 2048M of VRAM memory ready [drm] radeon: 512M of GTT memory ready. [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). [drm] Driver supports precise vblank timestamp query. radeon 0000:01:00.0: irq 54 for MSI/MSI-X radeon 0000:01:00.0: radeon: using MSI. [drm] radeon: irq initialized. [drm] GART: num cpu pages 131072, num gpu pages 131072 [drm] Loading CAYMAN Microcode [drm] PCIE GART of 512M enabled (table at 0x0000000000040000). radeon 0000:01:00.0: WB enabled [drm] ring test succeeded in 3 usecs [drm] radeon: ib pool ready. [drm] ib test succeeded in 0 usecs [drm] Radeon Display Connectors [drm] Connector 0: [drm] DisplayPort [drm] HPD5 [drm] DDC: 0x6430 0x6430 0x6434 0x6434 0x6438 0x6438 0x643c 0x643c [drm] Encoders: [drm] DFP1: INTERNAL_UNIPHY2 [drm] Connector 1: [drm] DisplayPort [drm] HPD4 [drm] DDC: 0x6440 0x6440 0x6444 0x6444 0x6448 0x6448 0x644c 0x644c [drm] Encoders: [drm] DFP2: INTERNAL_UNIPHY2 [drm] Connector 2: [drm] HDMI-A [drm] HPD6 [drm] DDC: 0x6460 0x6460 0x6464 0x6464 0x6468 0x6468 0x646c 0x646c [drm] Encoders: [drm] DFP3: INTERNAL_UNIPHY1 [drm] Connector 3: [drm] DVI-D [drm] HPD1 [drm] DDC: 0x6450 0x6450 0x6454 0x6454 0x6458 0x6458 0x645c 0x645c [drm] Encoders: [drm] DFP4: INTERNAL_UNIPHY1 [drm] Connector 4: [drm] DVI-I [drm] HPD3 [drm] DDC: 0x6470 0x6470 0x6474 0x6474 0x6478 0x6478 0x647c 0x647c [drm] Encoders: [drm] DFP5: INTERNAL_UNIPHY [drm] CRT1: INTERNAL_KLDSCP_DAC1 [drm] Internal thermal controller with fan control [drm:radeon_pm_print_states], 4 Power State(s) [drm:radeon_pm_print_states], State 0: Default [drm:radeon_pm_print_states], Default [drm:radeon_pm_print_states], 16 PCIE Lanes [drm:radeon_pm_print_states], 3 Clock Mode(s) [drm:radeon_pm_print_states], 0 e: 800000 m: 1250000 v: 1060 No display only [drm:radeon_pm_print_states], 1 e: 800000 m: 1250000 v: 1060 [drm:radeon_pm_print_states], 2 e: 800000 m: 1250000 v: 1060 [drm:radeon_pm_print_states], State 1: Performance [drm:radeon_pm_print_states], 16 PCIE Lanes [drm:radeon_pm_print_states], 3 Clock Mode(s) [drm:radeon_pm_print_states], 0 e: 250000 m: 150000 v: 900 No display only [drm:radeon_pm_print_states], 1 e: 500000 m: 1250000 v: 1000 [drm:radeon_pm_print_states], 2 e: 800000 m: 1250000 v: 1060 [drm:radeon_pm_print_states], State 2: Default [drm:radeon_pm_print_states], 16 PCIE Lanes [drm:radeon_pm_print_states], 3 Clock Mode(s) [drm:radeon_pm_print_states], 0 e: 500000 m: 1250000 v: 1000 No display only [drm:radeon_pm_print_states], 1 e: 500000 m: 1250000 v: 1000 [drm:radeon_pm_print_states], 2 e: 725000 m: 1250000 v: 1060 [drm:radeon_pm_print_states], State 3: Default [drm:radeon_pm_print_states], 16 PCIE Lanes [drm:radeon_pm_print_states], 3 Clock Mode(s) [drm:radeon_pm_print_states], 0 e: 500000 m: 1250000 v: 1000 No display only [drm:radeon_pm_print_states], 1 e: 500000 m: 1250000 v: 1000 [drm:radeon_pm_print_states], 2 e: 725000 m: 1250000 v: 1060 [drm] radeon: power management initialized [drm] fb mappable at 0xC0142000 [drm] vram apper at 0xC0000000 [drm] size 8294400 [drm] fb depth is 24 [drm] pitch is 7680 fbcon: radeondrmfb (fb0) is primary device [drm:radeon_set_power_state], Setting: e: 80000 [drm:radeon_set_power_state], Setting: m: 125000 Console: switching to colour frame buffer device 240x67 fb0: radeondrmfb frame buffer device drm: registered panic notifier [drm] Initialized radeon 2.12.0 20080528 for 0000:01:00.0 on minor 0
There are three Default and one Performance State. How can they be related to the /sys profile entry? Further, how are the ones for multi-display configuration chosen?
BTW: I guess there is a typo somewhere in the drm debug code? Evidently, the last 0 is missing here: [drm:radeon_set_power_state], Setting: e: 80000 [drm:radeon_set_power_state], Setting: m: 125000
Regards, Harald
On Tue, Dec 20, 2011 at 4:19 PM, Harald Judt h.judt@gmx.at wrote:
Am 20.12.2011 21:20, schrieb Adam Jackson:
On 12/20/11 1:38 PM, Harald Judt wrote:
Hi,
When using more than one monitor, the card uses higher clocks than in single-monitor mode and low-power profile. As a subjectively negative side-effect, the fan on the card starts making more noise. Other cards I used before had no problem with staying quiet even when more monitors were attached.
As soon as I switch back to single-monitor mode, clocks go down and the card becomes silent again.
Is there a way to manually force lower clock speeds, and therefore reach an acceptable noise level? Maybe make it use the same power profile settings in dual-monitor as in single-monitor?
It really depends on what kind of power profiles the device exposes. Boot with drm.debug=0x2 and they'll be in dmesg.
- ajax
Here we go:
[drm] Initialized drm 1.1.0 20060810 [drm] radeon defaulting to kernel modesetting. [drm] radeon kernel modesetting enabled. radeon 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 radeon 0000:01:00.0: setting latency timer to 64 [drm] initializing kernel modesetting (CAYMAN 0x1002:0x6719 0x1002:0x0B00). [drm] register mmio base: 0xFE620000 [drm] register mmio size: 131072 ATOM BIOS: CAYMAN radeon 0000:01:00.0: VRAM: 2048M 0x0000000000000000 - 0x000000007FFFFFFF (2048M used) radeon 0000:01:00.0: GTT: 512M 0x0000000080000000 - 0x000000009FFFFFFF mtrr: type mismatch for c0000000,10000000 old: write-back new: write-combining [drm] Detected VRAM RAM=2048M, BAR=256M [drm] RAM width 256bits DDR [TTM] Zone kernel: Available graphics memory: 8209192 kiB. [TTM] Zone dma32: Available graphics memory: 2097152 kiB. [TTM] Initializing pool allocator. [drm] radeon: 2048M of VRAM memory ready [drm] radeon: 512M of GTT memory ready. [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). [drm] Driver supports precise vblank timestamp query. radeon 0000:01:00.0: irq 54 for MSI/MSI-X radeon 0000:01:00.0: radeon: using MSI. [drm] radeon: irq initialized. [drm] GART: num cpu pages 131072, num gpu pages 131072 [drm] Loading CAYMAN Microcode [drm] PCIE GART of 512M enabled (table at 0x0000000000040000). radeon 0000:01:00.0: WB enabled [drm] ring test succeeded in 3 usecs [drm] radeon: ib pool ready. [drm] ib test succeeded in 0 usecs [drm] Radeon Display Connectors [drm] Connector 0: [drm] DisplayPort [drm] HPD5 [drm] DDC: 0x6430 0x6430 0x6434 0x6434 0x6438 0x6438 0x643c 0x643c [drm] Encoders: [drm] DFP1: INTERNAL_UNIPHY2 [drm] Connector 1: [drm] DisplayPort [drm] HPD4 [drm] DDC: 0x6440 0x6440 0x6444 0x6444 0x6448 0x6448 0x644c 0x644c [drm] Encoders: [drm] DFP2: INTERNAL_UNIPHY2 [drm] Connector 2: [drm] HDMI-A [drm] HPD6 [drm] DDC: 0x6460 0x6460 0x6464 0x6464 0x6468 0x6468 0x646c 0x646c [drm] Encoders: [drm] DFP3: INTERNAL_UNIPHY1 [drm] Connector 3: [drm] DVI-D [drm] HPD1 [drm] DDC: 0x6450 0x6450 0x6454 0x6454 0x6458 0x6458 0x645c 0x645c [drm] Encoders: [drm] DFP4: INTERNAL_UNIPHY1 [drm] Connector 4: [drm] DVI-I [drm] HPD3 [drm] DDC: 0x6470 0x6470 0x6474 0x6474 0x6478 0x6478 0x647c 0x647c [drm] Encoders: [drm] DFP5: INTERNAL_UNIPHY [drm] CRT1: INTERNAL_KLDSCP_DAC1 [drm] Internal thermal controller with fan control [drm:radeon_pm_print_states], 4 Power State(s) [drm:radeon_pm_print_states], State 0: Default [drm:radeon_pm_print_states], Default [drm:radeon_pm_print_states], 16 PCIE Lanes [drm:radeon_pm_print_states], 3 Clock Mode(s) [drm:radeon_pm_print_states], 0 e: 800000 m: 1250000 v: 1060 No display only [drm:radeon_pm_print_states], 1 e: 800000 m: 1250000 v: 1060 [drm:radeon_pm_print_states], 2 e: 800000 m: 1250000 v: 1060
This first state is the default/boot state.
[drm:radeon_pm_print_states], State 1: Performance [drm:radeon_pm_print_states], 16 PCIE Lanes [drm:radeon_pm_print_states], 3 Clock Mode(s) [drm:radeon_pm_print_states], 0 e: 250000 m: 150000 v: 900 No display only [drm:radeon_pm_print_states], 1 e: 500000 m: 1250000 v: 1000 [drm:radeon_pm_print_states], 2 e: 800000 m: 1250000 v: 1060
This is the single head performance state.
[drm:radeon_pm_print_states], State 2: Default [drm:radeon_pm_print_states], 16 PCIE Lanes [drm:radeon_pm_print_states], 3 Clock Mode(s) [drm:radeon_pm_print_states], 0 e: 500000 m: 1250000 v: 1000 No display only [drm:radeon_pm_print_states], 1 e: 500000 m: 1250000 v: 1000 [drm:radeon_pm_print_states], 2 e: 725000 m: 1250000 v: 1060 [drm:radeon_pm_print_states], State 3: Default [drm:radeon_pm_print_states], 16 PCIE Lanes [drm:radeon_pm_print_states], 3 Clock Mode(s) [drm:radeon_pm_print_states], 0 e: 500000 m: 1250000 v: 1000 No display only [drm:radeon_pm_print_states], 1 e: 500000 m: 1250000 v: 1000 [drm:radeon_pm_print_states], 2 e: 725000 m: 1250000 v: 1060
These last two are most likely special video playback states.
[drm] radeon: power management initialized [drm] fb mappable at 0xC0142000 [drm] vram apper at 0xC0000000 [drm] size 8294400 [drm] fb depth is 24 [drm] pitch is 7680 fbcon: radeondrmfb (fb0) is primary device [drm:radeon_set_power_state], Setting: e: 80000 [drm:radeon_set_power_state], Setting: m: 125000 Console: switching to colour frame buffer device 240x67 fb0: radeondrmfb frame buffer device drm: registered panic notifier [drm] Initialized radeon 2.12.0 20080528 for 0000:01:00.0 on minor 0
There are three Default and one Performance State. How can they be related to the /sys profile entry? Further, how are the ones for multi-display configuration chosen?
There's only 1 default state. The code to print out the tables says "default" by default if there is no other attribute set. Most cards have two performance states: one for multi-head and one for single head. Since there is no multi-head power state, the driver uses the default profile for multi-head. On systems like this it might be better to use the last profile for multi-head.
BTW: I guess there is a typo somewhere in the drm debug code? Evidently, the last 0 is missing here: [drm:radeon_set_power_state], Setting: e: 80000 [drm:radeon_set_power_state], Setting: m: 125000
The driver stores clocks in 10 khz units.
Regards, Harald
-- `Experience is the best teacher.' _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel
Am 20.12.2011 22:50, schrieb Alex Deucher:
[...]
[drm:radeon_pm_print_states], 4 Power State(s) [drm:radeon_pm_print_states], State 0: Default [drm:radeon_pm_print_states], Default [drm:radeon_pm_print_states], 16 PCIE Lanes [drm:radeon_pm_print_states], 3 Clock Mode(s) [drm:radeon_pm_print_states], 0 e: 800000 m: 1250000 v: 1060 No display only [drm:radeon_pm_print_states], 1 e: 800000 m: 1250000 v: 1060 [drm:radeon_pm_print_states], 2 e: 800000 m: 1250000 v: 1060
This first state is the default/boot state.
[drm:radeon_pm_print_states], State 1: Performance [drm:radeon_pm_print_states], 16 PCIE Lanes [drm:radeon_pm_print_states], 3 Clock Mode(s) [drm:radeon_pm_print_states], 0 e: 250000 m: 150000 v: 900 No display only [drm:radeon_pm_print_states], 1 e: 500000 m: 1250000 v: 1000 [drm:radeon_pm_print_states], 2 e: 800000 m: 1250000 v: 1060
This is the single head performance state.
[drm:radeon_pm_print_states], State 2: Default [drm:radeon_pm_print_states], 16 PCIE Lanes [drm:radeon_pm_print_states], 3 Clock Mode(s) [drm:radeon_pm_print_states], 0 e: 500000 m: 1250000 v: 1000 No display only [drm:radeon_pm_print_states], 1 e: 500000 m: 1250000 v: 1000 [drm:radeon_pm_print_states], 2 e: 725000 m: 1250000 v: 1060 [drm:radeon_pm_print_states], State 3: Default [drm:radeon_pm_print_states], 16 PCIE Lanes [drm:radeon_pm_print_states], 3 Clock Mode(s) [drm:radeon_pm_print_states], 0 e: 500000 m: 1250000 v: 1000 No display only [drm:radeon_pm_print_states], 1 e: 500000 m: 1250000 v: 1000 [drm:radeon_pm_print_states], 2 e: 725000 m: 1250000 v: 1060
These last two are most likely special video playback states.
[drm] radeon: power management initialized [drm] fb mappable at 0xC0142000 [drm] vram apper at 0xC0000000 [drm] size 8294400 [drm] fb depth is 24 [drm] pitch is 7680 fbcon: radeondrmfb (fb0) is primary device [drm:radeon_set_power_state], Setting: e: 80000 [drm:radeon_set_power_state], Setting: m: 125000 Console: switching to colour frame buffer device 240x67 fb0: radeondrmfb frame buffer device drm: registered panic notifier [drm] Initialized radeon 2.12.0 20080528 for 0000:01:00.0 on minor 0
There are three Default and one Performance State. How can they be related to the /sys profile entry? Further, how are the ones for multi-display configuration chosen?
There's only 1 default state. The code to print out the tables says "default" by default if there is no other attribute set. Most cards have two performance states: one for multi-head and one for single head. Since there is no multi-head power state, the driver uses the default profile for multi-head.
IIRC, the ATI fglrx driver seems to use the same strategy as r600. Needless to say that I'm not very fond of this strategy. I didn't check what state the windows driver chooses, but I would be surprised if it does something different.
On systems like this it might be better to use the last profile for multi-head.
Ok, for now I changed radeon_pm.c to always use the single-head profile for low and mid. However, selecting the last profile as you suggested would not help in my case, as it is the same as single-profile mid and causes the fan to spin up to definitely audible levels.
I did not notice any performance difference between low and mid for usual desktop work with desktop fx enabled. The card seems to be able to handle two monitors in single-head low power profile just fine. This might change when you connect more than two monitors.
BTW: I guess there is a typo somewhere in the drm debug code? Evidently, the last 0 is missing here: [drm:radeon_set_power_state], Setting: e: 80000 [drm:radeon_set_power_state], Setting: m: 125000
The driver stores clocks in 10 khz units.
Thanks for clarification.
Harald
dri-devel@lists.freedesktop.org
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Adam Jackson -
Alex Deucher -
Harald Judt