Re: [Intel-gfx] Disable power management on i915
On ti, 2016-08-02 at 21:07 +, Sanchez, AdolfoX wrote: > Hello Joonas, > > Thanks for your answer. > It is a test related for this bug: > https://bugzilla.kernel.org/show_bug.cgi?id=109051 > The original FDO bug which contains the steps of the debugging for i915 driver: https://bugs.freedesktop.org/show_bug.cgi?id=88012 Do note that the bug was closed for i915 as it figured out to be CPU power management problem, GPU power transition just made the unstable tower topple. Regards, Joonas > Best Regards, > Adolfo Sanchez > > > -Original Message- > From: Joonas Lahtinen [mailto:joonas.lahti...@linux.intel.com] > Sent: Tuesday, August 02, 2016 1:48 AM > To: Sanchez, AdolfoX <adolfox.sanc...@intel.com>; > intel-gfx@lists.freedesktop.org > Subject: Re: [Intel-gfx] Disable power management on i915 > > On ma, 2016-08-01 at 20:08 +, Sanchez, AdolfoX wrote: > > > > Hello. > > > > I would like to know what is the best way to disable power management > > on the GPU unit, the purpose is to avoid GPU power transitions to > > avoid voltage swings. > i915.enable_rc6=0 would be a start. Do you also want to fix the GPU frequency? > > May I also ask why you want to do such thing? > > Regards, Joonas > > > > > > > Additional information: > > Platform: Bay Trail J1900 > > O.S: Linux Kernel 4.4 > > > > Any help would be appreciated. > > > > Best Regards, > > Adolfo Sanchez. > > > > ___ > > Intel-gfx mailing list > > Intel-gfx@lists.freedesktop.org > > https://lists.freedesktop.org/mailman/listinfo/intel-gfx > -- > Joonas Lahtinen > Open Source Technology Center > Intel Corporation > -- Joonas Lahtinen Open Source Technology Center Intel Corporation ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
Re: [Intel-gfx] Disable power management on i915
Hello Joonas, Thanks for your answer. It is a test related for this bug: https://bugzilla.kernel.org/show_bug.cgi?id=109051 Best Regards, Adolfo Sanchez -Original Message- From: Joonas Lahtinen [mailto:joonas.lahti...@linux.intel.com] Sent: Tuesday, August 02, 2016 1:48 AM To: Sanchez, AdolfoX <adolfox.sanc...@intel.com>; intel-gfx@lists.freedesktop.org Subject: Re: [Intel-gfx] Disable power management on i915 On ma, 2016-08-01 at 20:08 +, Sanchez, AdolfoX wrote: > Hello. > > I would like to know what is the best way to disable power management > on the GPU unit, the purpose is to avoid GPU power transitions to > avoid voltage swings. i915.enable_rc6=0 would be a start. Do you also want to fix the GPU frequency? May I also ask why you want to do such thing? Regards, Joonas > > Additional information: > Platform: Bay Trail J1900 > O.S: Linux Kernel 4.4 > > Any help would be appreciated. > > Best Regards, > Adolfo Sanchez. > > ___ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Joonas Lahtinen Open Source Technology Center Intel Corporation ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
Re: [Intel-gfx] Disable power management on i915
On ma, 2016-08-01 at 20:08 +, Sanchez, AdolfoX wrote: > Hello. > > I would like to know what is the best way to disable power management > on the GPU unit, the purpose is to avoid GPU power transitions to > avoid voltage swings. i915.enable_rc6=0 would be a start. Do you also want to fix the GPU frequency? May I also ask why you want to do such thing? Regards, Joonas > > Additional information: > Platform: Bay Trail J1900 > O.S: Linux Kernel 4.4 > > Any help would be appreciated. > > Best Regards, > Adolfo Sanchez. > > ___ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Joonas Lahtinen Open Source Technology Center Intel Corporation ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
[Intel-gfx] Disable power management on i915
Hello. I would like to know what is the best way to disable power management on the GPU unit, the purpose is to avoid GPU power transitions to avoid voltage swings. Additional information: Platform: Bay Trail J1900 O.S: Linux Kernel 4.4 Any help would be appreciated. Best Regards, Adolfo Sanchez. ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
