video accel F19 on Acer Aspire One D255E netbook, lack thereof.

Fred Smith fredex at fcshome.stoneham.ma.us
Thu Sep 12 19:31:34 UTC 2013


Hi gang!

I have two netbooks, an Asus 901 eeepc, and a newer Acer Aspire One
D255E.

on the  older Asus, GoogleEarth runs quite nicely (for such a minimally-
powered system). it's clearly getting some graphical acceleration from 
the video chipset. (Thismachine is still running F17, soon to be upgraded,
I hope.)

the Acer, OTOH runs Google Earth so poorly as to be painful to watch
it slowly accumulate bits on the screen, taking several minutes to 
build up the default image upon startup. (This machine is running F19.)

The Asus is an old Atom N270 where "lsmod | grep video" reports:

$ lsmod | grep video
uvcvideo               71406  0 
videobuf2_vmalloc      13003  1 uvcvideo
videobuf2_memops       13001  1 videobuf2_vmalloc
videobuf2_core         37715  1 uvcvideo
videodev               97059  2 uvcvideo,videobuf2_core
media                  19719  2 uvcvideo,videodev
video                  18551  1 i915
i2c_core               28312  6 drm,i915,i2c_i801,drm_kms_helper,i2c_algo_bit,videodev

the Acer (Atom N570, dual core) reports  this from lsmod | grep video:

acer aspire one D255E

# lsmod | grep video
uvcvideo               71417  0 
videobuf2_vmalloc      13003  1 uvcvideo
videobuf2_memops       13001  1 videobuf2_vmalloc
videobuf2_core         37679  1 uvcvideo
videodev               97069  2 uvcvideo,videobuf2_core
media                  19691  2 uvcvideo,videodev
i2c_core               28434  6 drm,i915,i2c_i801,drm_kms_helper,i2c_algo_bit,videodev
video                  18551  2 i915,acer_wmi


they appear virtually identical, except that the Acer includes "acer_wmi"
along with i915 for "video".

Given that they seemto use the same Intel drivers, I'd expect them to
provide more or less the same video performance but at least for Google
Earth, they donot.

Anyone got any cles?

thanks!

Fred

-- 
---- Fred Smith -- fredex at fcshome.stoneham.ma.us -----------------------------
                       I can do all things through Christ 
                              who strengthens me.
------------------------------ Philippians 4:13 -------------------------------


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