Comment 70 for bug 274340

(In reply to comment #23)
> (In reply to comment #19)
> > After putting the line Option "AccelMethod" "EXA" and restarted the X interface
> > was ok, but the xorg is occupying much processing reaches peak of 90% leaving
> > the PC very slow.
> >
> Ivan, try to add :
> Option "MigrationHeuristic" "greedy"
>
> (In reply to comment #21)
> > Extremely erratic behavior. Sometimes the driver works with no options;
> > sometimes it hangs. Sometimes it works with EXA; sometimes it hangs.
> > Sometimes it works with NoAccel; sometimes it hangs. Sometimes when I kill the
> > X server, my machine recovers; sometimes my machine locks up. After the most
> > recent lock-up and reboot, I was able to run the driver with no options, with
> > EXA, and with NoAccel repeatedly with no hangs, despite the fact that it had
> > just been hanging a few moments before.
> >
> Jonathan, I'm not convinced all your troubles are related to openchrome. Is your
> machine perfectly stable when using the vesa driver ?
>
> (In reply to comment #22)
> > Any news?
>
> Diego, I believe there are multiple problems mixed here. One problem is XAA
> acceleration is broken for some people and switching to EXA mitigate the issue.
> In your case, you have to completely disable the acceleration to get the driver
> running. Unfortunately, you didn't provide neither your xorg conf nor your xorg
> log, so I'm afraid there's not much I can do to diagnose or even categorise the
> problem.
>
>
> All, I'm still awaiting for upstream to provide a patch that will remove the
> need of the VGA bios to do the modesetting, as I failed to produce it by myself.
> This should greatly reduce the pain some laptop users are suffering with
openchrome.

Hello,

Once the test by placing putting Option "MigrationHeuristic" "greedy" getting sa
follows:

1 st test:

Section "Device"
         Identifier "Videocard0"
         Driver "openchrome"
         Option "NoAccel"
         Option "MigrationHeuristic" "greedy"
EndSection

NOTE: The X rises but remains very slow. The simple task of maximizing and
discard maximize the xorg occupies 94% of the CPU.

2 nd test

Section "Device"
         Identifier "Videocard0"
         Driver "openchrome"
         Option "AccelMethod" "EXA"
         Option "MigrationHeuristic" "greedy"
EndSection

NOTE: Not rises X on television reports that connection with X server fi and
lost in the last lines of / var/log/Xorg.0.log.old shows the following:

Backtrace:
0: X (xf86SigHandler +0 x79) [0x80d60c9]
1: [0x12e400]
2: / lib/libc.so.6 (memcpy +0 x46) [0x471f46]
3: [0xb425d000]
4: / usr / lib / xorg / modules / / libexa.so [0x7a5334]
5: / usr / lib / xorg / modules / / libexa.so (exaComposite +0 xc0f) [0x7a602f]
6: X [0x8175f76]
7: X (CompositePicture +0 x1c6) [0x815fc86]
8: X [0x810d7ff]
9: X [0x811f1e5]
10: X (miPointerUpdateSprite +0 x229) [0x8118aa9]
11: X [0x8118ba5]
12: X [0x8147e7d]
13: X [0x81691b1]
14: X [0x808cfb3]
15: X (ChangeWindowAttributes +0 xcc0) [0x8073730]
16: X (ProcChangeWindowAttributes +0 xc0) [0x8085550]
17: X (Dispatch +0 x34f) [0x8085a3f]
18: X (main +0 x47d) [0x806b3bd]
19: / lib/libc.so.6 (__libc_start_main +0 xe6) [0x4115d6]
20: X (FontFileCompleteXLFD +0 x22d) [0x806a7a1]

Server Fatal error:
Caught signal 11. Server aborting

(II) UnloadModule: "mouse"
(II) UnloadModule: "kbd"
(II) Macintosh mouse button emulation: Close
(II) UnloadModule: "evdev"
(II) UnloadModule: "synaptics"
(II) HID 062nd: 0001: Close
(II) UnloadModule: "evdev"
(II) CHROME (0): VIALeaveVT
(II) CHROME (0): ViaCursorStore
(II) CHROME (0): VIARestore
(II) CHROME (0): ViaLCDPower: On.
(II) CHROME (0): ViaDisablePrimaryFIFO

3 of test

Section "Device"
         Identifier "Videocard0"
         Driver "openchrome"
         Option "NoAccel" "True"
         Option "MigrationHeuristic" "greedy"
EndSection

NOTE: The X rises but remains very slow. The simple task of maximizing and
discard maximize the xorg occupies 94% of the CPU.

Packages installed on the machine:

[breads netuno @ ~] $ rpm-q | grep openchrome
xorg-x11-drv-openchrome-0.2.902-7.fc9.i386
[breads netuno @ ~] $ rpm-q | grep kernel
kernel-2.6.25.6-55.fc9.i686
[breads netuno @ ~] $

Regards,

Ivan Paes