` On Feb 2, 2012 12:02 AM, "Jonathan Thornburg" <jth...@astro.indiana.edu> wrote: > > In a thread back in November 2011,
> In a thread back in November 2011, > http://marc.info/?t=132173453400070&r=1&w=1 > I reported intermittent kernel/X hangs (usually under near-idle loads) > on a Thinkpad T60 widescreen laptop (alas I misspelled the name as > "Tinkpad" in the Subject: line) running 5.0-stable amd64. My full > dmesg is given in the first message in that thread, > http://marc.info/?l=openbsd-misc&m=132105242827683&w=1 > along with various other (hopefully-)relevant information. There's > also more information on the problem symptoms in my later messages in > that thread, > http://marc.info/?l=openbsd-misc&m=132103762123592&w=1 > http://marc.info/?l=openbsd-misc&m=132137790200900&w=1 > > I've now gathered a bit more information, and have some new questions > for the list: > > > Moving to 5.0-stable made no difference to this problem. > Switching between GENERIC.mp and GENERIC made no difference to this > problem. > > My original reports were with X autoconfiguring (i.e., > /etc/X11/xorg.conf did NOT exist), using the Radeon driver: > > % dmesg|grep vga > vga1 at pci1 dev 0 function 0 "ATI Radeon Mobility X1400" rev 0x00 > wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) > radeondrm0 at vga1: apic 1 int 16 > > Since I don't actually need/use accelerated 3-D video, I've tried to > switch to the generic VESA X driver. Alas, I haven't been able to > construct an /etc/X11/xorg.conf which successfully uses the VESA > driver at the full (15.4" widescreen) hardware screen resolution of > 1680x1050 pixels. (None of my attempts would go above 1400x1050 > pixels, "stretched" in a horribly ugly way to fill the screen.) > > As a last-ditch measure to try to get a reliable computer, I've tried > disabling ALL video acceleration using the xorg.conf given below. This > "works" -- I've had no more hangs in the 2 months I've been using this > configuration (now with 5.0-stable GENERIC.mp), whereas before I was > getting multiple hangs/week. Alas, this has come at the price of > painfully slow scrolling in xterm, painfully slow window drags, and > general video "performance" that reminds me of that 8 MB Sparcstation > SLC I remember using back around 1990 or so. :( :( > > So... questions for the list: > * Can anyone point me to a working xorg.conf to use the VESA video > driver on a T60 @ 1680x1050 pixel resolution? > * Can anyone suggest a better fix or workaround for my X hangs? > Loosing 3-D acceleration is no problem for me, but 2-D acceleration > would be nice... > * If I do switch back to the Radeon driver, and the hangs reoccur, > is there any information I could gather from a hung machine, and/or > any logging I could switch on before a hang, that would be useful > in further diagnosing the problem? > * Starting from a cold boot, my current xorg.conf (given below) doesn't > work -- X is unable to properly initialize the video, resulting in > a screen display that's vaguely abstract-art bars of white pixels > scattered around the screen, with no X cursor visible. So, right > now, after each cold boot I first start X with an xorg.conf in which > the line > > Option "NoAccel" # [<bool>] > > is commented out (with thie xorg.conf X starts fine, but is vulnerable > to crashes), then immediately shut down X, then restart with the > no-acceleration xorg.conf (the one given below). This procedure works, > but is awkward. Is there a way around this kludge? > > --- begin /etc/X11/xorg.conf to disable ALL video acceleration --- > Section "ServerLayout" > Identifier "X.org Configured" > Screen 0 "Screen0" 0 0 > InputDevice "Mouse0" "CorePointer" > InputDevice "Keyboard0" "CoreKeyboard" > EndSection > > Section "Files" > ModulePath "/usr/X11R6/lib/modules" > FontPath "/usr/X11R6/lib/X11/fonts/misc/" > FontPath "/usr/X11R6/lib/X11/fonts/TTF/" > FontPath "/usr/X11R6/lib/X11/fonts/OTF/" > FontPath "/usr/X11R6/lib/X11/fonts/Type1/" > FontPath "/usr/X11R6/lib/X11/fonts/100dpi/" > FontPath "/usr/X11R6/lib/X11/fonts/75dpi/" > EndSection > > Section "Module" > Load "dbe" > Load "dri" > Load "dri2" > Load "extmod" > Load "glx" > Load "record" > EndSection > > Section "InputDevice" > Identifier "Keyboard0" > Driver "kbd" > EndSection > > Section "InputDevice" > Identifier "Mouse0" > Driver "mouse" > Option "Protocol" "wsmouse" > Option "Device" "/dev/wsmouse" > Option "ZAxisMapping" "4 5 6 7" > EndSection > > Section "Monitor" > Identifier "Monitor0" > VendorName "Monitor Vendor" > ModelName "Monitor Model" > EndSection > > Section "Device" > ### Available Driver options are:- > ### Values: <i>: integer, <f>: float, <bool>: "True"/"False", > ### <string>: "String", <freq>: "<f> Hz/kHz/MHz", > ### <percent>: "<f>%" > ### [arg]: arg optional > Option "NoAccel" # [<bool>] > #Option "SWcursor" # [<bool>] > #Option "Dac6Bit" # [<bool>] > #Option "Dac8Bit" # [<bool>] > #Option "BusType" # [<str>] > #Option "CPPIOMode" # [<bool>] > #Option "CPusecTimeout" # <i> > #Option "AGPMode" # <i> > #Option "AGPFastWrite" # [<bool>] > #Option "AGPSize" # <i> > #Option "GARTSize" # <i> > #Option "RingSize" # <i> > #Option "BufferSize" # <i> > #Option "EnableDepthMoves" # [<bool>] > #Option "EnablePageFlip" # [<bool>] > #Option "NoBackBuffer" # [<bool>] > #Option "DMAForXv" # [<bool>] > #Option "FBTexPercent" # <i> > #Option "DepthBits" # <i> > #Option "PCIAPERSize" # <i> > #Option "AccelDFS" # [<bool>] > #Option "IgnoreEDID" # [<bool>] > #Option "DisplayPriority" # [<str>] > #Option "PanelSize" # [<str>] > #Option "ForceMinDotClock" # <freq> > #Option "ColorTiling" # [<bool>] > #Option "VideoKey" # <i> > #Option "RageTheatreCrystal" # <i> > #Option "RageTheatreTunerPort" # <i> > #Option "RageTheatreCompositePort" # <i> > #Option "RageTheatreSVideoPort" # <i> > #Option "TunerType" # <i> > #Option "RageTheatreMicrocPath" # <str> > #Option "RageTheatreMicrocType" # <str> > #Option "ScalerWidth" # <i> > #Option "RenderAccel" # [<bool>] > #Option "SubPixelOrder" # [<str>] > #Option "ShowCache" # [<bool>] > #Option "DynamicClocks" # [<bool>] > #Option "VGAAccess" # [<bool>] > #Option "ReverseDDC" # [<bool>] > #Option "LVDSProbePLL" # [<bool>] > #Option "AccelMethod" # <str> > #Option "DRI" # [<bool>] > #Option "ConnectorTable" # <str> > #Option "DefaultConnectorTable" # [<bool>] > #Option "DefaultTMDSPLL" # [<bool>] > #Option "TVDACLoadDetect" # [<bool>] > #Option "ForceTVOut" # [<bool>] > #Option "TVStandard" # <str> > #Option "IgnoreLidStatus" # [<bool>] > #Option "DefaultTVDACAdj" # [<bool>] > #Option "Int10" # [<bool>] > #Option "EXAVSync" # [<bool>] > #Option "ATOMTVOut" # [<bool>] > #Option "R4xxATOM" # [<bool>] > Identifier "Card0" > Driver "radeon" > BusID "PCI:1:0:0" > EndSection > > Section "Screen" > Identifier "Screen0" > Device "Card0" > Monitor "Monitor0" > SubSection "Display" > Viewport 0 0 > Depth 1 > EndSubSection > SubSection "Display" > Viewport 0 0 > Depth 4 > EndSubSection > SubSection "Display" > Viewport 0 0 > Depth 8 > EndSubSection > SubSection "Display" > Viewport 0 0 > Depth 15 > EndSubSection > SubSection "Display" > Viewport 0 0 > Depth 16 > EndSubSection > SubSection "Display" > Viewport 0 0 > Depth 24 > EndSubSection > EndSection > > --- end /etc/X11/xorg.conf --- > > thanks, ciao, > > -- > -- Jonathan Thornburg <jth...@astro.indiana.edu> > Dept of Astronomy & IUCSS, Indiana University, Bloomington, Indiana, USA > "Washing one's hands of the conflict between the powerful and the > powerless means to side with the powerful, not to be neutral." > -- quote by Freire / poster by Oxfam
