[ltp] T42 radeon 7500 crashing - vesa driver better but wont power off display

[Dave Wood]

On (23:02 01/12/08), Dave Wood <dave@unrealize.co.uk> put forth the proposition:
> To sum up. The past few days X has been crashing a lot. I can fix that by
> using the vesa driver but for some reason power management of the display
> will not work - not even 'xset dpms force off' will work.
> 
> So two problems. First I can't find anything helpful with the Xorg log - at
> least googling hasn't found anything specific. I haven't made any updates
> to the system except security fixes and nothing connected with X. Slackware
> 12.0 by the way.
> 
> I can't find any info on why vesa won't power off the screen. I dont
> *really* need to use radeon - vesa would be fine - but I need find out what
> is wrong with power management if I'm going to use it permanently.

Well I found mention that vesa doesn't support dpms which is a pity.

> 
> Hope someone here has some ideas where to look and what to look for.
> 
> Cheers
> 
> This is the end of the xorg log after a crash:
> 
> Backtrace:
>  0: /usr/bin/X(xf86SigHandler+0x7e) [0x80bf1ee]
>  1: [0xffffe420]
>  2: /usr/lib/xorg/modules//libxaa.so [0xb798aded]
>  3: /usr/bin/X [0x8168704]
>  4: /usr/bin/X(CompositeGlyphs+0x9a) [0x814fd8a]
>  5: /usr/bin/X [0x8157648]
>  6: /usr/bin/X [0x8152aa5]
>  7: /usr/bin/X [0x814620e]
>  8: /usr/bin/X(Dispatch+0x2bf) [0x808688f]
>  9: /usr/bin/X(main+0x48b) [0x806ddab]
>  10: /lib/libc.so.6(__libc_start_main+0xe0) [0xb7d5a390]
>  11: /usr/bin/X(FontFileCompleteXLFD+0x20d) [0x806d121]
> 
>  Fatal server error:
>  Caught signal 11.  Server aborting
> 
>  (II) AIGLX: Suspending AIGLX clients for VT switch
>  disable montype: 2
>  (II) RADEON(0): RADEONRestoreMemMapRegisters() :
>  (II) RADEON(0):   MC_FB_LOCATION   : 0x1fff0000 0xe3ffe000
>  (II) RADEON(0):   MC_AGP_LOCATION  : 0x27ff2000
>  finished PLL2
>  Entering Restore TV
>  Restore TV PLL
>  Restore TVHV
>  Restore TV Restarts
>  Restore Timing Tables
>  Restore TV standard
>  Leaving Restore TV
> 
> -- 
> "Reality is that which, when you stop believing in it, doesn't go
> away".
> 		-- Philip K. Dick
> 
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