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Slow X refresh after >>> x11-base/xorg-x11-7.2 [solved]
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Massimo B.
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PostPosted: Wed May 16, 2007 9:09 pm    Post subject: Slow X refresh after >>> x11-base/xorg-x11-7.2 [sol Reply with quote

Hello. Since the last updates
Code:
# genlop --list --date 2 days ago |grep x11
     Tue May 15 07:37:44 2007 >>> x11-libs/libSM-1.0.2
     Tue May 15 07:40:04 2007 >>> x11-libs/libXv-1.0.3
     Tue May 15 07:42:35 2007 >>> x11-libs/libXcursor-1.1.8
     Tue May 15 07:43:51 2007 >>> x11-apps/xauth-1.0.2
     Tue May 15 07:45:54 2007 >>> x11-apps/xinit-1.0.3-r3
     Tue May 15 07:48:05 2007 >>> x11-libs/libdrm-2.3.0
     Tue May 15 09:03:15 2007 >>> x11-libs/libXScrnSaver-1.1.2
     Tue May 15 11:08:35 2007 >>> x11-base/xorg-server-1.2.0-r3
     Tue May 15 11:11:25 2007 >>> x11-apps/mesa-progs-6.5.2
     Tue May 15 11:12:29 2007 >>> x11-apps/xmodmap-1.0.2
     Tue May 15 11:13:05 2007 >>> x11-base/xorg-x11-7.2
the X refresh on KDE is really slow. I notice that when scrolling webpages on konqueror, moving windows, or switching virtual desktops.

From the Xorg logs:
Code:
# cat /var/log/Xorg.0.log |grep WW
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(WW) The directory "/usr/share/fonts/local/" does not exist.
(WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/encodings/".
(WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/util/".
(WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/cyrillic/".
(WW) The directory "/usr/share/fonts/TTF/" does not exist.
(WW) The directory "/usr/share/fonts/ukr/" does not exist.
(WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/default/".
(WW) ****INVALID IO ALLOCATION**** b: 0xf0000400 e: 0xf00004ff correcting
(WW) RADEON(0): Color tiling not supported with UseFBDev option
(WW) RADEON(0): Video BIOS not detected in PCI space!
(WW) RADEON(0): Attempting to read Video BIOS from legacy ISA space!
(WW) RADEON(0): Unrecognized BIOS signature, BIOS data will not be used
(WW) RADEON(0): Video BIOS not detected, using default clock settings!
(WW) RADEON(0): DRI init changed memory map, adjusting ...
(WW) RADEON(0):   MC_FB_LOCATION  was: 0x7fff0000 is: 0x03ff0000
(WW) RADEON(0):   MC_AGP_LOCATION was: 0xffffffc0 is: 0x047f0400
(WW) AIGLX: 3D driver claims to not support visual 0x23
(WW) AIGLX: 3D driver claims to not support visual 0x24
(WW) AIGLX: 3D driver claims to not support visual 0x25
(WW) AIGLX: 3D driver claims to not support visual 0x26
(WW) AIGLX: 3D driver claims to not support visual 0x27
(WW) AIGLX: 3D driver claims to not support visual 0x28
(WW) AIGLX: 3D driver claims to not support visual 0x29
(WW) AIGLX: 3D driver claims to not support visual 0x2a
(WW) AIGLX: 3D driver claims to not support visual 0x2b
(WW) AIGLX: 3D driver claims to not support visual 0x2c
(WW) AIGLX: 3D driver claims to not support visual 0x2d
(WW) AIGLX: 3D driver claims to not support visual 0x2e
(WW) AIGLX: 3D driver claims to not support visual 0x2f
(WW) AIGLX: 3D driver claims to not support visual 0x30
(WW) AIGLX: 3D driver claims to not support visual 0x31
(WW) AIGLX: 3D driver claims to not support visual 0x32
Code:
# cat /var/log/Xorg.0.log |grep EE
Current Operating System: Linux marialin 2.6.19-gentoo-r4 #8 PREEMPT Mon May 14 19:25:19 CEST 2007 ppc
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(II) Loading extension MIT-SCREEN-SAVER
(EE) end of block range 0xefffffff < begin 0xf0000000
(EE) RADEON(0): MergedFB does not work with Option UseFBDev, MergedFB mode is disabled

I kept the same xorg.conf which was functional on the version before.
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Last edited by Massimo B. on Thu May 17, 2007 9:42 am; edited 1 time in total
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quatsch
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PostPosted: Wed May 16, 2007 10:46 pm    Post subject: Reply with quote

I had the same problem. Renewing xorg.conf with Xorgautoconfig seems to have fixed it (so far - knock on wood). Some of the options seem to have become deprecated.
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JoseJX
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PostPosted: Wed May 16, 2007 11:59 pm    Post subject: Reply with quote

I'd recommend using xac instead as that's the Xorgautoconfig replacement. I'll probably be retiring Xorgautoconfig before the next Gentoo release. :)
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Massimo B.
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PostPosted: Thu May 17, 2007 9:41 am    Post subject: Reply with quote

I found the line.
Code:
Option          "AccelMethod"           "exa"
This was working with earlier Xorg but has to be disabled now. After that the refresh of konqueror, desktops etc. is fast as usual.

Here again my radeon specific section for iBook2 G3-600 dual USB, ATI Technologies Inc Radeon Mobility M6 LY, 16MB:
Code:
Section "Device"
        Option          "BackingStore"          "true"  # Increases performance         # unstable (JoseJX)
        Option          "EnablePageFlip"        "true"  # Increases performance         # good for most cases
        Option          "AGPMode"               "2"     # Set AGP data transfer rate, DRI only
        Option          "AGPFastWrite"          "true"  # Use AGP Fast Write, DRI only
        Option          "RenderAccel"           "true"  # Hardware acceleration
        Option          "UseFBDev"              "yes"   # important (!)
#       Option          "AccelMethod"           "exa"   # bug, slow refresh?
#       Option          "DynamicClocks"         "false" # reduce heat, power consumption, reduces 3D performance

        Identifier      "Card0"
        Driver          "radeon"
        VendorName      "ATI Technologies Inc"
        BoardName       "Radeon Mobility M6 LY"
        BusID           "PCI:0:16:0"
EndSection

Tested with glxgears and orbital-eunuch-siper.
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JoseJX
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PostPosted: Thu May 17, 2007 10:56 am    Post subject: Reply with quote

BackingStore is not recommended as it can cause screen corruption.

EXA is the new drawing method under development, XAA is the old one. Bugs will probably show up with EXA until it stabilizes. :)
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Massimo B.
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PostPosted: Thu May 17, 2007 12:44 pm    Post subject: Reply with quote

So as soon as I encounter screen corruption I will bear in mind to switch off BackingStore. So far I will keep it since it's about more performance.

As for EXA under development, the last version was functional, these one is kind of broken, and I'll keep an eye on it for next versions.
Thanks, JoeseJX.
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PostPosted: Sun May 27, 2007 3:34 pm    Post subject: Reply with quote

I've found that the time to do an 'ls -alrt' suddenly has risen to 39 seconds. Changing 'RenderAccel' from true to false reduced that to 18 seconds. Outside of X it takes one second.
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