On Tue, Apr 27, 2010 at 5:35 AM, Klaus Doblmann B.A.
<klaus.doblmann at gmail.com> wrote:
>
> I sent this to Alex a few days ago but felt I should post it on this
> list as well:
>

You might want to check the address you used as I never got the email.

> I've been testing radeon KMS PM with 2.6.34-rc* for a few days now and
> I wanted to send you my testcase. Even though PM is enabled, the
> defaults of my card are somewhat insane so no real powermanagement
> takes place - i.e. the card doesn't get clocked down. is there any way
> to force the card to use a different setting where less power is being
> consumed?

The current code doesn't handle a lot of cases properly.  Please try
my latest patch set against Dave's drm-next tree:
http://people.freedesktop.org/~agd5f/pm3/
It allows you to enable dynamic pm or force a static power mode via sysfs.

Alex

> Thanks!
>
> Klaus
>
> Below you'll find the output of dmesg | grep drm which should provide
> you with the needed information:
>
> klaus at klaus-imac:/etc/acpi/events$ dmesg | grep drm
> [ ? ?1.011163] [drm] Initialized drm 1.1.0 20060810
> [ ? ?1.069646] [drm] radeon kernel modesetting enabled.
> [ ? ?1.071157] [drm] initializing kernel modesetting (RV630
> 0x1002:0x9583). [ ? ?1.071247] [drm] register mmio base: 0xD0520000
> [ ? ?1.071249] [drm] register mmio size: 65536
> [ ? ?1.071454] [drm] Clocks initialized !
> [ ? ?1.071456] [drm] Internal thermal controller without fan control
> [ ? ?1.071458] [drm] 4 Power State(s)
> [ ? ?1.071460] [drm] State 0 Default (default)
> [ ? ?1.071461] [drm] ? ?16 PCIE Lanes
> [ ? ?1.071462] [drm] ? ?3 Clock Mode(s)
> [ ? ?1.071463] [drm] ? ? ? ? ? ?0 engine/memory: 680000/750000
> [ ? ?1.071465] [drm] ? ? ? ? ? ?1 engine/memory: 680000/750000
> [ ? ?1.071466] [drm] ? ? ? ? ? ?2 engine/memory: 680000/750000
> [ ? ?1.071468] [drm] State 1 Performance
> [ ? ?1.071469] [drm] ? ?16 PCIE Lanes
> [ ? ?1.071470] [drm] ? ?3 Clock Mode(s)
> [ ? ?1.071471] [drm] ? ? ? ? ? ?0 engine/memory: 110000/750000
> [ ? ?1.071473] [drm] ? ? ? ? ? ?1 engine/memory: 680000/750000
> [ ? ?1.071474] [drm] ? ? ? ? ? ?2 engine/memory: 680000/750000
> [ ? ?1.071475] [drm] State 2 Default
> [ ? ?1.071476] [drm] ? ?16 PCIE Lanes
> [ ? ?1.071477] [drm] ? ?3 Clock Mode(s)
> [ ? ?1.071479] [drm] ? ? ? ? ? ?0 engine/memory: 680000/750000
> [ ? ?1.071480] [drm] ? ? ? ? ? ?1 engine/memory: 680000/750000
> [ ? ?1.071482] [drm] ? ? ? ? ? ?2 engine/memory: 680000/750000
> [ ? ?1.071483] [drm] State 3 Performance
> [ ? ?1.071484] [drm] ? ?16 PCIE Lanes
> [ ? ?1.071485] [drm] ? ?3 Clock Mode(s)
> [ ? ?1.071486] [drm] ? ? ? ? ? ?0 engine/memory: 300000/750000
> [ ? ?1.071488] [drm] ? ? ? ? ? ?1 engine/memory: 680000/750000
> [ ? ?1.071489] [drm] ? ? ? ? ? ?2 engine/memory: 680000/750000
> [ ? ?1.071493] [drm] radeon: dynamic power management enabled
> [ ? ?1.071494] [drm] radeon: power management initialized
> [ ? ?1.073069] [drm] Detected VRAM RAM=256M, BAR=256M
> [ ? ?1.073072] [drm] RAM width 128bits DDR
> [ ? ?1.073144] [drm] radeon: 256M of VRAM memory ready
> [ ? ?1.073145] [drm] radeon: 512M of GTT memory ready.
> [ ? ?1.073206] [drm] radeon: using MSI.
> [ ? ?1.073236] [drm] radeon: irq initialized.
> [ ? ?1.073236] [drm] GART: num cpu pages 131072, num gpu pages 131072
> [ ? ?1.073874] [drm] Loading RV630 Microcode
> [ ? ?1.115484] [drm] ring test succeeded in 1 usecs
> [ ? ?1.115555] [drm] radeon: ib pool ready.
> [ ? ?1.115614] [drm] ib test succeeded in 0 usecs
> [ ? ?1.115616] [drm] Enabling audio support
> [ ? ?1.115637] [drm] Default TV standard: NTSC
> [ ? ?1.115711] [drm] Default TV standard: NTSC
> [ ? ?1.115713] [drm] Radeon Display Connectors
> [ ? ?1.115714] [drm] Connector 0:
> [ ? ?1.115715] [drm] ? DVI-I
> [ ? ?1.115716] [drm] ? HPD1
> [ ? ?1.115718] [drm] ? DDC: 0x7e40 0x7e40 0x7e44 0x7e44 0x7e48 0x7e48
> 0x7e4c 0x7e4c [ ? ?1.115719] [drm] ? Encoders:
> [ ? ?1.115720] [drm] ? ? CRT1: INTERNAL_KLDSCP_DAC1
> [ ? ?1.115722] [drm] ? ? DFP1: INTERNAL_KLDSCP_TMDS1
> [ ? ?1.115723] [drm] ? ? TV1: INTERNAL_KLDSCP_DAC2
> [ ? ?1.115724] [drm] Connector 1:
> [ ? ?1.115725] [drm] ? LVDS
> [ ? ?1.115727] [drm] ? DDC: 0x7e50 0x7e50 0x7e54 0x7e54 0x7e58 0x7e58
> 0x7e5c 0x7e5c [ ? ?1.115728] [drm] ? Encoders:
> [ ? ?1.115729] [drm] ? ? LCD1: INTERNAL_LVTM1
> [ ? ?1.169669] [drm] Requested: e: 68000 m: 75000 p: 16
> [ ? ?1.169671] [drm] Setting: e: 68000 m: 75000 p: 16
> [ ? ?1.520024] [drm] fb mappable at 0xC0141000
> [ ? ?1.520025] [drm] vram apper at 0xC0000000
> [ ? ?1.520027] [drm] size 9216000
> [ ? ?1.520028] [drm] fb depth is 24
> [ ? ?1.520029] [drm] ? ?pitch is 7680
> [ ? ?1.520061] fb0: radeondrmfb frame buffer device
> [ ? ?1.520067] [drm] Initialized radeon 2.3.0 20080528 for 0000:01:00.0
> on minor 0 [ ? ?1.524098] [drm] Requested: e: 68000 m: 75000 p: 16
> [ ? ?1.524101] [drm] Setting: e: 68000 m: 75000 p: 16
> [ ? ?2.130063] [drm] Requested: e: 68000 m: 75000 p: 16
> [ ? ?2.130066] [drm] Setting: e: 68000 m: 75000 p: 16
> [ ? ?2.141345] [drm] not in vbl for pm change 00020002 00000000 at entry
> [ ?497.545444] [drm] Requested: e: 68000 m: 75000 p: 16
> [ ?497.545459] [drm] Setting: e: 68000 m: 75000 p: 16
> [ ?497.545514] [drm] not in vbl for pm change 00020002 00000000 at entry
> [ ?497.545684] [drm] not in vbl for pm change 00020002 00000000 at exit
> [ ?498.650121] [drm] Requested: e: 68000 m: 75000 p: 16
> [ ?498.650131] [drm] Setting: e: 68000 m: 75000 p: 16
> [ ?501.560135] [drm] Requested: e: 68000 m: 75000 p: 16
> [ ?501.560145] [drm] Setting: e: 68000 m: 75000 p: 16
> [ ?504.560137] [drm] Requested: e: 68000 m: 75000 p: 16
> [ ?504.560146] [drm] Setting: e: 68000 m: 75000 p: 16
>
> --
> Klaus Doblmann B.A. - http://straightrazorguy.net - FSF member #7570
> PGP-Key: http://www.doblmann.de/pgp_key.asc
>
> A: Because it messes up the order in which people normally read text.
> ? See http://en.wikipedia.org/wiki/Posting_style
> Q: Why is top-posting such a bad thing?
> A: Top-posting.
> Q: What is the most annoying thing in e-mail?
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