On Fri, Sep 27, 2013 at 1:21 PM, * SAMÍ * <miaousami@xxxxxxxxxxx> wrote: > Hi Alex, > > > could you just point me to the right location in the driver code to play > with? > I am less afraid to play with the driver than to flash my vbios... > Even though, I promise I won't bother you or complain if I break something > :-) rv6xx_parse_pplib_clock_info() in rv6xx_dpm.c is what parses the performance levels for a power state. rv6xx_parse_power_table() in rv6xx_dpm.c is what parses the overall power tables. Alex > > NB: Daniel, although I won't modify my vbios, I still like your solution: it > reminds me of good old time where you just had to edit your game files with > an hex editor to cheat... > > > Regards > Sam > > On 09/26/2013 08:19 PM, Alex Deucher wrote: >> >> On Thu, Sep 26, 2013 at 1:49 PM, <daniel@xxxxxxxxxxxxx> wrote: >>> >>> Hi >>> >>>> As I suspected, on your system all the performance levels are the same: >>> >>> (...) >>>> >>>> [ 8.961704] power level 0 sclk: 45000 mclk: 50000 >>>> vddc: 950 >>>> [ 8.961706] power level 1 sclk: 45000 mclk: 50000 >>>> vddc: 950 >>>> [ 8.961708] power level 2 sclk: 45000 mclk: 50000 >>>> vddc: 950 >>> >>> (...) >>>> >>>> So there is no dynamic switching supported on your system. >>> >>> I also had this problem and manage to "fix" it (on a HD2600) :) >>> >>> >>> >>> Please be warnned that this is dangerous, requires editing the >>> bios and >>> may brick your card. Also, will not work on recent cards (but a HD2400 >>> should be ok). >>> Also, this is a hack and no one will support you if things go wrong! >>> >>> >>> You need a windows machine, for some steps, but other can use a >>> linux >>> equivalent... but editing the GPU bios i know no alternative to using the >>> windows program. I also don't know is there is any way in linux to load a >>> GPU >>> bios (and avoid the flashing)... we have the firmware, but i think that >>> the >>> firmware is just a subset of the bios. >>> >>> >>> So here is the "HOWTO": >>> >>> Make a usb pendrive bootable to DOS: >>> >>> Get this files: >>> http://files.extremeoverclocking.com/file.php?f=196 >>> >>> http://pt.kioskea.net/download/baixaki-433-hp-usb-disk-storage-format-tool >>> >>> >>> Unzip the windows98 DOS support to a directory and run the HP >>> usb storage >>> app and format the pendrive. Chek the flag "Create a DOS startup disk" >>> and choose >>> the extracted windows98 files. >>> >>> After formating, download and extract the ATI flash to the pen: >>> >>> http://www.techpowerup.com/downloads/1731/ATIFlash_3.79.html >>> >>> Now lets edit the bios. Ddownload this two apps: >>> >>> http://www.techpowerup.com/gpuz/ -> Dump the GPU Bios >>> http://www.techpowerup.com/rbe/ -> ATI/AMD Bios editor >>> >>> use the gpu-z to dump the current bios, backup it up on a >>> pendrive, to >>> revert to the original bios if needed. >>> >>> use the rbe to edit the power levels. be conservative, DO NOT >>> TOUCH the >>> boot power profiles (this way you can always boot the machine), avoid >>> changing >>> the voltage, as it's more dangerous (but it can also save more power). >>> >>> Edit the lower leves to reduce the GPU frequencies and keep the >>> level >>> 2 high. please note that too low or too high frequencies may cause the >>> card >>> to be unstable. DRAM frequencies usually save little power, but may help >>> reducing >>> the heat. For evey change, test it and check if the card is stable, the >>> picture >>> is not corrupted in different resolutions and loads. Again, if something >>> goes >>> wrong, power off the machine and startup again, the boot profile should >>> be the >>> one that always work (don't forget to have a boot entry in grub that >>> disables >>> the dynamic powermanagement, to avoid jumping to a unstable profile). >>> >>> After doing the changes, save the bios and save it to the >>> pendrive. >>> >>> Now shutdown the machine, make sure you have the full charge and >>> have >>> the power connected. If power faills during the flashing of the bios, you >>> may >>> brick the card/laptop. >>> >>> Startup the computer with the pendriver, enter the DOS and run >>> the >>> flash command: >>> >>> atiflash -p 0 xxxx.rom >>> >>> where the xxxx.rom is the new "tuned" bios. After some seconds >>> and >>> the command line returned, you can reboot and test it. If something >>> fails, >>> flash back the original bios. >>> >>> Test the card, increase the load, let screen/card enter the >>> sleep >>> mode (screensaver/suspend), change resolutions and look at the >>> temperature. >>> If all OK, you can try to tune even more. >>> >>> So this is a possible (and dangerous) solution for this problem, >>> but >>> may help some people. >> >> You can edit the power states in the driver as well if you don't want >> to flash your vbios. However the same caveats apply. It's not >> recommended that you flash your vbios, or edit your power states. It >> may break your card, void your warranty, etc. >> >> Alex >> >> > _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
