Because I am on a macbook the VBIOS might be wonky. I tried turning off nVidia and using intel. The result was a blank screen. I know other people had the same bug which was something to do with reprobing lvds?! I saw patches go by and every time I tried one the results were the same. fail. I was actually about to post a bug report to the intel (i915) people about it.
I tried to work out how to get optimus to work. After trying several different sets of instructions I never found a working configuration and put it aside. I never used to use opengl but lately my pcb software has adopted it so my needs changed. I will get back to you with more results on this matter after I get the newer kernel up. On Sat, Feb 14, 2015 at 10:09 PM, Ilia Mirkin <imir...@alum.mit.edu> wrote: > On Sat, Feb 14, 2015 at 9:56 PM, Evan Foss <evanf...@gmail.com> wrote: >> I have a side question which may be the subject of a future second bug >> report. I have been lurking on the nouveau mailing list for some time. >> I understand from various posts that the nvidia gpu clock speed right >> now is set to the lowest possible setting. Why does my machine run so > > Often but not always the case -- the clock speed is whatever the VBIOS > leaves it in. For kepler, that is usually the lowest setting. > >> much hotter in linux than macos? I turned off the intel graphics and >> the cpu clock is set to the lowest available speed. > > You should instead turn off the nvidia graphics and run off intel -- > intel is much less power-hungry than nvidia, even at the lowest > clocks. If it's an optimus setup, the nvidia gpu should automatically > power off until needed (either because some display is connected to > it, or for offloading). > >> >> How do I get a display of the GPU clocking speeds? > > You should see it in dmesg... look for CLK lines. The ones with -- (or > AC/DC) will show the current setting. Or boot with nouveau.pstate=1 > and you should have a /sys/class/drm/card*/device/pstate file. > > -ilia -- Home http://evanfoss.googlepages.com/ Work http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/ _______________________________________________ Nouveau mailing list Nouveau@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/nouveau
