Bug 16928

I recently started to use my venerable Thinkpad X30 (graphic chipset recognized as i830M by the `intel' driver) as a desktop machine, connected to a 1600x1200 display.

It mostly works fine except for 2 problems:
1 - Very minor: the VGA output can only go through pipe 0, but at startup, if the external monitor is not connected, Xorg chooses pipe 0 for LVDS, so that `xrandr --auto' complains that it can't find a crtc for the VGA.  I can work around it via "xrandr --output LVDS --crtc 1" followed by "xrandr --auto", but ideally `xrandr' should be able to figure that out on its own.

2 - Some of the redraws are mixed up.  I mostly notice it in Firefox where everytime it receives/loses focus (i.e. often with my focus-follows-mouse window-manager), some text gets redrawn but elsewhere, so I have patches of blanks where some text is supposed to be displayed (a few words or a complete line might be missing), and I also have text written at incorrect places.  Also probably related, some pixmaps gets garbled everyone in a while, afterwhich they tend to stay garbled (forcing a redisplay doesn't help).  Those pixmaps may be things like firefox background images, or my window manager's tiled background, or buttons in xpdf, ... presumably pixmaps stored in the Xserver's video memory.

I cannot correlate those problems with any particular change, because I hadn't used this machine in a fairly long while.  The only thing that comes to my mind is that I added "Virtual 2048 2048" to my xorg.conf's display subsection in order to accomodate the external display.

Here's the hopefully relevant part of my Xorg.log:

~-0# egrep -C9 'EE|WW' /var/log/Xorg.0.log
Build Operating System: Linux Debian (xorg-server 2:1.4.2-2)
Current Operating System: Linux alfajor 2.6.25-2-686 #1 SMP Fri Jul 18 17:46:56 UTC 2008 i686
Build Date: 18 July 2008  11:09:10AM
 
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Module Loader present
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Thu Jul 31 15:01:22 2008
(==) Using config file: "/etc/X11/xorg.conf"
(==) ServerLayout "Default Layout"
(**) |-->Screen "Default Screen" (0)
(**) |   |-->Monitor "Internal"
(**) |   |-->Device "Intel Corporation 82830 CGC [Chipset Graphics Controller]"
(**) |-->Input Device "Generic Keyboard"
(**) |-->Input Device "Configured Mouse"
(**) |-->Input Device "Synaptics Touchpad"
(==) Automatically adding devices
(==) Automatically enabling devices
(WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
        Entry deleted from font path.
(==) FontPath set to:
        /usr/share/fonts/X11/misc,
        /usr/share/fonts/X11/100dpi/:unscaled,
        /usr/share/fonts/X11/75dpi/:unscaled,
        /usr/share/fonts/X11/Type1,
        /usr/share/fonts/X11/100dpi,
        /usr/share/fonts/X11/75dpi,
        /var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType
--
(II) Loading /usr/lib/xorg/modules/extensions//libextmod.so
(II) Module extmod: vendor="X.Org Foundation"
        compiled for 1.4.2, module version = 1.0.0
        Module class: X.Org Server Extension
        ABI class: X.Org Server Extension, version 0.3
(II) Loading extension SHAPE
(II) Loading extension MIT-SUNDRY-NONSTANDARD
(II) Loading extension BIG-REQUESTS
(II) Loading extension SYNC
(II) Loading extension MIT-SCREEN-SAVER
(II) Loading extension XC-MISC
(II) Loading extension XFree86-VidModeExtension
(II) Loading extension XFree86-Misc
(II) Loading extension XFree86-DGA
(II) Loading extension DPMS
(II) Loading extension TOG-CUP
(II) Loading extension Extended-Visual-Information
(II) Loading extension XVideo
(II) Loading extension XVideo-MotionCompensation
--
(II) intel(0): [drm] Using the DRM lock SAREA also for drawables.
(II) intel(0): [drm] framebuffer mapped by ddx driver
(II) intel(0): [drm] added 1 reserved context for kernel
(II) intel(0): X context handle = 0x1
(II) intel(0): [drm] installed DRM signal handler
(**) intel(0): Framebuffer compression disabled
(**) intel(0): Tiling enabled
(==) intel(0): VideoRam: 131072 KB
(II) intel(0): Attempting memory allocation with tiled buffers.
(WW) intel(0): xf86AllocateGARTMemory: allocation of 10 pages failed
        (Cannot allocate memory)
(WW) intel(0): Failed to allocate texture space.
(II) intel(0): Tiled allocation failed.
(II) intel(0): Attempting memory allocation with untiled buffers.
(WW) intel(0): xf86AllocateGARTMemory: allocation of 10 pages failed
        (Cannot allocate memory)
(WW) intel(0): Failed to allocate texture space.
(II) intel(0): Untiled allocation failed.
(II) intel(0): Couldn't allocate 3D memory, disabling DRI.
(II) intel(0): Attempting memory allocation with untiled buffers.
(WW) intel(0): xf86AllocateGARTMemory: allocation of 10 pages failed
        (Cannot allocate memory)
(II) intel(0): Untiled allocation successful.
(II) intel(0): Page Flipping disabled
(==) intel(0): Write-combining range (0xe0000000,0x8000000)
(II) intel(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0, hwp->PIOOffset is 0x0000
(II) EXA(0): Offscreen pixmap area of 50331648 bytes
(II) EXA(0): Driver registered support for the following operations:
(II)         Solid
(II)         Copy
--
(II) Initializing built-in extension DAMAGE
(II) Initializing built-in extension XEVIE
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 10, (OK)
drmOpenByBusid: Searching for BusID pci:0000:00:02.0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 10, (OK)
drmOpenByBusid: drmOpenMinor returns 10
drmOpenByBusid: drmGetBusid reports pci:0000:00:02.0
(EE) AIGLX error: drmMap of framebuffer failed (Invalid argument)(EE) AIGLX: reverting to software rendering
(II) Loading sub module "GLcore"
(II) LoadModule: "GLcore"
(II) Loading /usr/lib/xorg/modules/extensions//libGLcore.so
(II) Module GLcore: vendor="X.Org Foundation"
        compiled for 1.4.2, module version = 1.0.0
        ABI class: X.Org Server Extension, version 0.3
(II) GLX: Initialized MESA-PROXY GL provider for screen 0
(II) intel(0): Setting screen physical size to 432 x 324
(**) Option "CoreKeyboard"
--
(==) Configured Mouse: Emulate3Buttons, Emulate3Timeout: 50
(**) Configured Mouse: ZAxisMapping: buttons 4 and 5
(**) Configured Mouse: Buttons: 9
(**) Configured Mouse: Sensitivity: 1
(II) Synaptics touchpad driver version 0.14.6 (1406)
Synaptics Touchpad no synaptics event device found
(**) Option "Device" "/dev/psaux"
(**) Option "HorizScrollDelta" "0"
Query no Synaptics: 6003C8
(EE) Synaptics Touchpad no synaptics touchpad detected and no repeater device
(EE) Synaptics Touchpad Unable to query/initialize Synaptics hardware.
(EE) PreInit failed for input device "Synaptics Touchpad"
(II) UnloadModule: "synaptics"
(II) evaluating device (Generic Keyboard)
(II) XINPUT: Adding extended input device "Generic Keyboard" (type: KEYBOARD)
(II) evaluating device (Configured Mouse)
(II) XINPUT: Adding extended input device "Configured Mouse" (type: MOUSE)
(II) Configured Mouse: ps2EnableDataReporting: succeeded
SetClientVersion: 0 9
(II) 3rd Button detected: disabling emulate3Button
(II) intel(0): EDID vendor "SAM", prod id 463
--
(II) intel(0): 0x007e4000-0x007e4fff: Core cursor (4 kB, 0x000000002965d000 physical
)
(II) intel(0): 0x007e5000-0x007e8fff: ARGB cursor (16 kB, 0x000000001ae64000 physical
)
(II) intel(0): 0x007e9000-0x007e9fff: overlay registers (4 kB, 0x0000000029658000 physical
)
(II) intel(0): 0x007f0000-0x017effff: front buffer (16384 kB)
(II) intel(0): 0x017f0000-0x047effff: exa offscreen (49152 kB)
(II) intel(0): 0x08000000:            end of aperture
(WW) intel(0): ESR is 0x00000010, page table error
(WW) intel(0): PGTBL_ER is 0xf0286052
(WW) intel(0): Existing errors found in hardware state.
(II) intel(0): Output configuration:
(II) intel(0):   Pipe A is on
(II) intel(0):   Display plane A is now enabled and connected to pipe A.
(II) intel(0):   Pipe B is off
(II) intel(0):   Display plane B is now disabled and connected to pipe B.
(II) intel(0):   Output VGA is connected to pipe A
(II) intel(0):   Output LVDS is connected to pipe none
(II) Configured Mouse: ps2EnableDataReporting: succeeded
SetGrabKeysState - enabled