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cz0
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Joined: 13 Jun 2005
Posts: 280
Location: /earth/russia/moscow
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 Posted: Thu Jan 19, 2006 1:09 am Post subject: Enabling MMX2 support [SOLVED] |
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mplayer : "MMX2 supported but disabled"...
How 2 fix? I have mmx mmx2 sse sse2 options in make.conf, but MMX2 is't working 
Last edited by cz0 on Thu Jan 19, 2006 5:33 pm; edited 1 time in total |
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yabbadabbadont
Advocate
Joined: 14 Mar 2003
Posts: 4791
Location: 2 exits past crazy
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| Posted: Thu Jan 19, 2006 3:45 am Post subject: |
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Run: cat /proc/cpuinfo
Make sure that mmx2 is listed under flags. |
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micmac
l33t
Joined: 28 Nov 2003
Posts: 996
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| Posted: Thu Jan 19, 2006 4:05 am Post subject: Re: Enabling MMX2 support |
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| cz0 wrote: | mplayer : "MMX2 supported but disabled"...
How 2 fix? I have mmx mmx2 sse sse2 options in make.conf, but MMX2 is't working |
| Code: | emerge mplayer -pv
*** You are not in the portage group. You may experience cache problems
*** due to permissions preventing the creation of the on-disk cache.
*** Please add this user to the portage group if you wish to use portage.
These are the packages that I would merge, in order:
Calculating dependencies ...done!
[ebuild N ] media-video/mplayer-1.0_pre7-r1 -3dfx +3dnow +3dnowext +X -aac -aalib +alsa (-altivec) -arts -bidi -bindist -bl -cdparanoia -cpudetection -custom-cflags -debug -dga -directfb -doc -dts -dv -dvb -dvd -dvdread -edl -encode -esd -fbcon -ggi +gif -gtk -i8x0 -ipv6 -jack -joystick +jpeg -libcaca -lirc -live -livecd -lzo -mad -matroska -matrox +mmx +mmxext -mythtv -nas +nls -nvidia -opengl -oss +png -real -rtc -samba -sdl +sse -sse2 -svga -tga -theora +truetype -v4l -v4l2 -vorbis -win32codecs -xanim -xinerama -xmms +xv -xvid -xvmc 7,397 kB
Total size of downloads: 7,397 kB |
See? There's no 'mmx2' USE flag. 'mmxext' is what you're looking for.
| Code: | cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 8
model name : AMD Sempron(tm) 2400+
stepping : 1
cpu MHz : 1670.784
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mp mmxext 3dnowext 3dnow
bogomips : 3343.94 |
No mmx2, just mmxext...  |
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cz0
Apprentice
Joined: 13 Jun 2005
Posts: 280
Location: /earth/russia/moscow
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| Posted: Thu Jan 19, 2006 5:33 pm Post subject: |
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| Thenx! |
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devjonfos
n00b
Joined: 07 Mar 2003
Posts: 27
Location: Northern California
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| Posted: Sat Jan 28, 2006 5:10 pm Post subject: Thanks! |
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| Thanks micmac that hint worked for me also. I've been noticing those MMX2 messages from mplayer also, but didn't know how to fix it. |
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tost
Guru
Joined: 10 Dec 2005
Posts: 506
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| Posted: Sat Jan 28, 2006 5:20 pm Post subject: |
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Yes same for me, i never noticed that this useflag exists 
thanks
tost |
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kevkoala
n00b
Joined: 07 Feb 2013
Posts: 6
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| Posted: Sun Feb 24, 2013 4:46 pm Post subject: many thanks... |
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Hi all,
Worked for me too... after rebuilding mplayer and not gnome-mplayer
Thanks for the hint.
Kev. |
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duby2291
Guru
Joined: 17 Oct 2004
Posts: 583
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| Posted: Sun Feb 24, 2013 7:51 pm Post subject: |
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I have that flag disabled because I was under the impression that mmx and sse were mutually exclusive.. ie if mmx is used then sse won't be? And since sse is a more complete extension I thought it would be best to use that.
Am I wrong?
I think it might be time for some benchmarks.... |
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paluszak
Apprentice
Joined: 28 Jun 2004
Posts: 265
Location: Warsaw, Poland
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| Posted: Mon Feb 25, 2013 10:32 pm Post subject: |
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| duby2291 wrote: | I have that flag disabled because I was under the impression that mmx and sse were mutually exclusive.. ie if mmx is used then sse won't be? And since sse is a more complete extension I thought it would be best to use that.
Am I wrong?
I think it might be time for some benchmarks.... |
AFAIK they're not, they're both on when you compile with -march=native and your CPU supports them. In a small number of packages there's asm code that gets enabled when you set an appropriate use flag. |
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