On Tue, Dec 20, 2011 at 4:19 PM, Harald Judt <h.judt@xxxxxx> 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@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/dri-devel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
