On Wed, 09 Jan 2013 13:06:36 +0100, Michel Dänzer <daen...@debian.org>
wrote:
On Die, 2013-01-08 at 23:20 +0100, Tilo Schwarz wrote:
Scrolling in an x-term is much slower than before (it is clearly
noticeable by eye).
Investigation shows, that scrolling is about 5 times slower when KMS is
on.
A "time seq 100000" takes about 12 seconds with
"options radeon modeset=1" in /etc/modprobe.d/radeon-kms.conf.
A "time seq 100000" takes about 2-3 seconds with
"options radeon modeset=0" in /etc/modprobe.d/radeon-kms.conf.
xterm and rxvt show the same effect.
[...]
[ 56.923] (II) RADEON(0): KMS Color Tiling: enabled
Sounds like https://bugs.freedesktop.org/show_bug.cgi?id=34486
Hi Michel,
thank you for the reply:
Indeed, using
% grep ColorTiling /etc/X11/xorg.conf
Option "ColorTiling" "off"
the scrolling is twice as fast as without this option (from 12sec down to
6sec). That is still almost three times slower than without KMS, but
already much more usable!
What worries me is, that now I get the following error messages, whenever
I switch tags (using awesome WM, tags are like virtual desktops):
r300: I got a pre-allocated buffer to use it as a texture storage, but the
buffer is too small. I'll use the buffer anyway, because I can't crash
here, but it's dangerous. This can be a DDX bug. Got: 7114752B, Need:
7119360B, Info:
r300: texture_desc_init: Macro: NO, Micro: YES, Pitch: 1728, Dim:
1678x1029x1, LastLevel: 0, Size: 7119360, Format: s8_uint_z24_unorm
r300: I got a pre-allocated buffer to use it as a texture storage, but the
buffer is too small. I'll use the buffer anyway, because I can't crash
here, but it's dangerous. This can be a DDX bug. Got: 176128B, Need:
179712B, Info:
r300: texture_desc_init: Macro: NO, Micro: YES, Pitch: 1728, Dim:
1678x25x1, LastLevel: 0, Size: 179712, Format: s8_uint_z24_unorm
r300: I got a pre-allocated buffer to use it as a texture storage, but the
buffer is too small. I'll use the buffer anyway, because I can't crash
here, but it's dangerous. This can be a DDX bug. Got: 7114752B, Need:
7119360B, Info:
r300: texture_desc_init: Macro: NO, Micro: YES, Pitch: 1728, Dim:
1678x1029x1, LastLevel: 0, Size: 7119360, Format: s8_uint_z24_unorm
r300: I got a pre-allocated buffer to use it as a texture storage, but the
buffer is too small. I'll use the buffer anyway, because I can't crash
here, but it's dangerous. This can be a DDX bug. Got: 176128B, Need:
179712B, Info:
r300: texture_desc_init: Macro: NO, Micro: YES, Pitch: 1728, Dim:
1678x25x1, LastLevel: 0, Size: 179712, Format: s8_uint_z24_unorm
r300: I got a pre-allocated buffer to use it as a texture storage, but the
buffer is too small. I'll use the buffer anyway, because I can't crash
here, but it's dangerous. This can be a DDX bug. Got: 7114752B, Need:
7119360B, Info:
r300: texture_desc_init: Macro: NO, Micro: YES, Pitch: 1728, Dim:
1678x1029x1, LastLevel: 0, Size: 7119360, Format: s8_uint_z24_unorm
Failed to open VDPAU backend libvdpau_r300.so: cannot open shared object
file: No such file or directory
r300: I got a pre-allocated buffer to use it as a texture storage, but the
buffer is too small. I'll use the buffer anyway, because I can't crash
here, but it's dangerous. This can be a DDX bug. Got: 176128B, Need:
179712B, Info:
r300: texture_desc_init: Macro: NO, Micro: YES, Pitch: 1728, Dim:
1678x25x1, LastLevel: 0, Size: 179712, Format: s8_uint_z24_unorm
Maybe related to https://bugs.freedesktop.org/show_bug.cgi?id=42085
Now I hesitate to switch ColorTiling off, because a "buffer is too small"
warning sounds not too good to me ...
Thank you!
Regards,
Tilo
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