OK, now home, tried workarounds, and can confirm that this does indeed
seem to be a duplicate of bug #444139. I did the following:
First I enabled KMS as per comment #3 in bug #444139, which helped
things noticeably, I was able to go to "Normal" visual effects without a
crash, and still had my background, so that was definite progress.
Window animations were still very slow, however.
Then I edited my xorg.conf as follows - the "Monitor" and "Screen"
sections are from Alexandre, for my PLE2407HDS monitor, and the "Device"
section is from bug #444139 comment #47 since I have a Radeon 9200 PRO.
This sped things up noticeably (still not great, but much, much better):
Section "Device"
Driver "ati"
Identifier "Radeon 9200"
Option "BusType" "PCI"
Option "AccelMethod" "EXA"
Option "MigrationHeuristic" "greedy"
Option "AGPSize" "64"
EndSection
Section "Monitor"
Identifier "PLE2407HDS"
HorizSync 29-81
VertRefresh 55-76
Option "VendorName" "IVM"
Option "ModelName" "PLE2407HDS"
Option "DPMS" "true"
Option "PreferredMode" "1920x1080"
Option "TargetRefresh" "60"
Option "Position" "0 0"
Option "Rotate" "normal"
Option "Disable" "false"
Modeline "1920x1080" 148.50 1920 2008 2052 2200 1080 1084 1089 1125
-hsync +vsync
EndSection
Section "Screen"
Identifier "Default Screen"
Monitor "PLE2407HDS"
Device "Configured Video Device"
EndSection
For info, lspci -vv gives the following:
01:00.0 VGA compatible controller: ATI Technologies Inc RV280 [Radeon 9200 PRO]
(rev 01)
Subsystem: ASUSTeK Computer Inc. Device 004c
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64 (2000ns min), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 19
Region 0: Memory at e0000000 (32-bit, prefetchable) [size=128M]
Region 1: I/O ports at a800 [size=256]
Region 2: Memory at ff5f0000 (32-bit, non-prefetchable) [size=64K]
Expansion ROM at ff5c0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: radeon
Kernel modules: radeon, radeonfb
01:00.1 Display controller: ATI Technologies Inc RV280 [Radeon 9200 PRO]
(Secondary) (rev 01)
Subsystem: ASUSTeK Computer Inc. Device 004d
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64 (2000ns min), Cache Line Size: 32 bytes
Region 0: Memory at d8000000 (32-bit, prefetchable) [size=128M]
Region 1: Memory at ff5e0000 (32-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
--
Iiyama monitor's native resolution does not display properly
https://bugs.launchpad.net/bugs/473114
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