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=== fmasi is now known as fmasi_afk | ||
=== fmasi_afk is now known as fmasi | ||
=== fmasi is now known as fmasi_afk | ||
=== fmasi_afk is now known as fmasi | ||
RoyalDogBiscuits | Heya. Mark has talked many times about "ultrasmooth" graphics. This is achieved with a low-jitter kernel. | 11:51 |
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RoyalDogBiscuits | Please see: http://ovekarlsen.com/Blog/turning-ubuntu-12-04-into-a-professional-low-jitter-os/ | 11:51 |
RoyalDogBiscuits | I can answer any questions. | 11:51 |
RoyalDogBiscuits | Low-jitter reduces interrputs in the datastreams, giving continuous graphics and audio, that is optimal for a multimedia computer OS. | 12:19 |
RoyalDogBiscuits | For instance Doom 3 which is a very jitter sensitive game, that Carmack not long ago stated was taxing even on modern computers, runs with accurate 72fps. | 12:20 |
RoyalDogBiscuits | This also on a core 2 duo, and GTX 280. | 12:20 |
RoyalDogBiscuits | Doom 3 does three passes pr Open GL frame. | 12:20 |
RoyalDogBiscuits | interrupts :) | 12:21 |
ohsix | why did you change your name? | 12:32 |
ohsix | and only considering the kernel as a source of jitter is going to majorly miss all the real issues | 12:34 |
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=== fmasi_afk is now known as fmasi | ||
RoyalDogBiscuits | ohsix: It is tried and tested, there is no other real issues. | 13:04 |
rtg | apw, suppose we oughtta do a signed package for Saucy LTS ? | 13:14 |
* henrix -> lunch | 13:15 | |
apw | rtg, hmm, i suppose we might indeed | 13:18 |
rtg | apw, are you still the expert there ? | 13:18 |
apw | rtg, yeah i'll take the action indeed | 13:19 |
arges | smb: hi | 13:23 |
smb | arges, maybe... :) | 13:24 |
arges | : ) | 13:24 |
arges | smb: bug 1007082 | 13:24 |
ubot2 | Launchpad bug 1007082 in linux (Ubuntu) "BUG: Bad page state in process node pfn:8e9d9" [Medium,Incomplete] https://launchpad.net/bugs/1007082 | 13:24 |
jpds | Anyone know how I can start to figure out why my laptop is a lot hotter on saucy? | 14:22 |
apw | jpds, it is sitting on your lap ? | 14:39 |
jpds | apw: Partially, but the fan is spinning a lot more than what I'm use to. | 14:40 |
cking | maybe install a raring kernel and see if that changes things | 14:40 |
apw | jpds, shame you didn't upgrade 3m ago :( | 14:40 |
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brendand | how does dmesg get the timestamps used to mark entries? | 15:51 |
brendand | is it possible to get that number at any point? | 15:51 |
brendand | this number '[ 9231.618344]' | 15:52 |
brendand | which i guess is seconds after boot | 15:52 |
kamal | tjaalton, hey, so regarding those in-raring-but-not-in-3.8-stable haswell commits . . . I'd be happy to take the two from upstream in 3.8-stable, if you were to request that | 16:12 |
kamal | tjaalton, that would be raring's e8c14411e539718 and 0009bd009e9ec8b | 16:12 |
tjaalton | kamal: yeah, do you need a formal request? | 16:14 |
kamal | tjaalton, yes please... an email to me with cc: stable@vger.kernel.org . The upstream commits to request are: | 16:15 |
kamal | commit 21ad833075801a7cd81b5ef1604ffc6c600e5ff9 upstream. | 16:15 |
kamal | commit 7b9f35a6dd72f89452c58bbdbaf063027bf857ec upstream. | 16:15 |
tjaalton | ok, I'll cc the authors too so they can yell 'no!' if they want :) | 16:16 |
kamal | tjaalton, sure sounds good (I'll also do that when I actually queue up the patches) | 16:16 |
tjaalton | not that I think they should | 16:16 |
tjaalton | i'm working on backporting power well changes for haswell, it doesn't support hdmi/dp audio on 3.8 currently | 16:19 |
tjaalton | but getting that in stable might be asking a bit too much, currently at five patches and it's not fully there yet | 16:20 |
kamal | tjaalton, um . . . does that relate to 2124b72e6283c4e84a55e71077fee91793f4c801 (which I'm about to queue for 3.8-stable, as requested by Shuduo Sang) | 16:20 |
tjaalton | kamal: yes, it needs the other four patches | 16:20 |
kamal | tjaalton: 212b72e drm/i915: don't disable the power well yet | 16:20 |
tjaalton | or at least it applies cleanly after them | 16:21 |
tjaalton | but it's not enough; after unplugging the cable, the hdmi/dp audio device is still listed on audio properties | 16:21 |
tjaalton | works fine on 3.11 | 16:22 |
tjaalton | and apparently on 3.9-rc5 | 16:22 |
kamal | tjaalton, hmm. I backported 212b72e to 3.8 with no fuss at all (didn't apply cleanly, but was an easy/obvious port). I wasn't aware that it needed any other patches, but ... | 16:22 |
tjaalton | huh, ok | 16:22 |
kamal | see my email (in kteam@) to Shuduo, asking whether it's really even relevant for 3.8 | 16:22 |
kamal | Subject: Re: stable: 2124b72e6283c4e84a55e71077fee91793f4c801 need backport | 16:23 |
kamal | tjaalton, . . . . so now I'm confused. | 16:23 |
tjaalton | well, I thought 7f35610cc33cf7ee0797dc684ccc0057742dc12a is just as wanted | 16:23 |
tjaalton | but, we'll see after some testing | 16:23 |
tjaalton | if the one patch is enough then that's good | 16:23 |
kamal | I can't find 7f35610cc33cf7ee0797dc684ccc0057742dc12a (which repo?) | 16:24 |
tjaalton | oops, mine :) | 16:25 |
tjaalton | hang on | 16:25 |
tjaalton | fa42e23c1055a4 is better | 16:25 |
tjaalton | so, the bisection showed the proposed patch fixing things, but of course i915 got 265 other commits to the driver since 3.8.. | 16:26 |
kamal | tjaalton, well, fwiw fa42e23c1055a4 applies cleanly to my 3.8 tree | 16:26 |
tjaalton | yeah it does | 16:27 |
kamal | tjaalton, and I'd take it if requested (and assuming it actually compiles :-) | 16:28 |
tjaalton | the other commits I'm testing with are cb10799c194369633b18, 6b25a88752e8e and d5f21e4072645d0 | 16:28 |
tjaalton | but wth.. now I see that this branch doesn't have 2124b72e6283c, grr | 16:29 |
tjaalton | so I'll just rerun the tests, maybe things work after pulling it | 16:30 |
kamal | tjaalton, ok, lmk what you want to do after you sort it all out. fwiw, all three of those ^^ look fine to me also. | 16:31 |
tjaalton | ok cool | 16:31 |
brendand | cking, thanks for the answer on dmesg | 16:31 |
tjaalton | since the primary target is the quantal i915_hsw driver they're probably fine there but would be silly not to have them on 3.8/raring too | 16:31 |
tjaalton | especially since it's all haswell anyway | 16:32 |
kamal | tjaalton, agreed, plus it makes my life easier for future i915 stable merges | 16:32 |
tjaalton | sure | 16:33 |
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