Re: [Intel-gfx] Very bad performance from intel chipset on Thinkpad T540p (2880x1620)

2015-04-28 Thread Dave Gordon
On 24/04/15 17:18, Marc MERLIN wrote: > On Fri, Apr 24, 2015 at 04:53:53PM +0100, Chris Wilson wrote: >> Whether of not it tears depends upon your window manager. On bare X, >> using mplayer -vo xv or -vo gl, should not tear. Under a compositing >> window manager, it depends upon how it decides to

Re: [Intel-gfx] Very bad performance from intel chipset on Thinkpad T540p (2880x1620)

2015-04-25 Thread Marc MERLIN
On Sat, Apr 25, 2015 at 09:02:12PM +0100, Chris Wilson wrote: > > So, I added this at the end of my xorg.conf, but Xorg.0.log says: > > 'intel(0): TearFree disabled' > > You created a second Device section for the option that didn't match the > first (which is used by default). So X is simply not

Re: [Intel-gfx] Very bad performance from intel chipset on Thinkpad T540p (2880x1620)

2015-04-25 Thread Chris Wilson
On Sat, Apr 25, 2015 at 11:31:57AM -0700, Marc MERLIN wrote: > On Fri, Apr 24, 2015 at 04:53:53PM +0100, Chris Wilson wrote: > > Whether of not it tears depends upon your window manager. On bare X, > > using mplayer -vo xv or -vo gl, should not tear. Under a compositing > > window manager, it depen

Re: [Intel-gfx] Very bad performance from intel chipset on Thinkpad T540p (2880x1620)

2015-04-25 Thread Marc MERLIN
On Fri, Apr 24, 2015 at 04:53:53PM +0100, Chris Wilson wrote: > Whether of not it tears depends upon your window manager. On bare X, > using mplayer -vo xv or -vo gl, should not tear. Under a compositing > window manager, it depends upon how it decides to update the screen. To > force everything to

Re: [Intel-gfx] Very bad performance from intel chipset on Thinkpad T540p (2880x1620)

2015-04-24 Thread Marc MERLIN
On Fri, Apr 24, 2015 at 04:53:53PM +0100, Chris Wilson wrote: > Whether of not it tears depends upon your window manager. On bare X, > using mplayer -vo xv or -vo gl, should not tear. Under a compositing > window manager, it depends upon how it decides to update the screen. To > force everything to

Re: [Intel-gfx] Very bad performance from intel chipset on Thinkpad T540p (2880x1620)

2015-04-24 Thread Chris Wilson
On Fri, Apr 24, 2015 at 08:35:33AM -0700, Marc MERLIN wrote: > On Fri, Apr 24, 2015 at 07:53:29AM +0100, Chris Wilson wrote: > > > On top of being bleeding edge enoug not to be in debian unstable, does it > > > have > > > performance enhancements that you are hopeful will help my situation? > >

Re: [Intel-gfx] Very bad performance from intel chipset on Thinkpad T540p (2880x1620)

2015-04-24 Thread Marc MERLIN
On Fri, Apr 24, 2015 at 07:53:29AM +0100, Chris Wilson wrote: > > On top of being bleeding edge enoug not to be in debian unstable, does it > > have > > performance enhancements that you are hopeful will help my situation? > > Lots. :) Ok, so I owe you thanks. Between the module options and t

Re: [Intel-gfx] Very bad performance from intel chipset on Thinkpad T540p (2880x1620)

2015-04-23 Thread Chris Wilson
On Thu, Apr 23, 2015 at 05:31:01PM -0700, Marc MERLIN wrote: > Hi Chris, thanks for the answer, > > On Thu, Apr 23, 2015 at 11:49:24PM +0100, Chris Wilson wrote: > > On Thu, Apr 23, 2015 at 03:22:44PM -0700, Marc MERLIN wrote: > > > I do boot my kernel with these options I found recommended to sav

Re: [Intel-gfx] Very bad performance from intel chipset on Thinkpad T540p (2880x1620)

2015-04-23 Thread Marc MERLIN
Hi Chris, thanks for the answer, On Thu, Apr 23, 2015 at 11:49:24PM +0100, Chris Wilson wrote: > On Thu, Apr 23, 2015 at 03:22:44PM -0700, Marc MERLIN wrote: > > I do boot my kernel with these options I found recommended to save > > power, maybe I should remove some of them because they kill perfo

Re: [Intel-gfx] Very bad performance from intel chipset on Thinkpad T540p (2880x1620)

2015-04-23 Thread Chris Wilson
On Thu, Apr 23, 2015 at 03:22:44PM -0700, Marc MERLIN wrote: > I do boot my kernel with these options I found recommended to save > power, maybe I should remove some of them because they kill performance? > pcie_aspm=force i915.i915_enable_rc6=7 i915.i915_enable_fbc=1 > i915.semaphores=1 i915.lvds

[Intel-gfx] Very bad performance from intel chipset on Thinkpad T540p (2880x1620)

2015-04-23 Thread Marc MERLIN
Hi, My performance for normal work (2D, although many things like chrome use the GPU nowadays), and video (mplayer) is between just usable to horrible. Performance is bad enough that I'm about to replace the mainboard to get one with the Nvidia GeForce GT 730M 1GB. I have no idea how good or bad n