Messages in this thread | | | Date | Tue, 11 Nov 2008 00:46:43 -0800 | From | Andrew Morton <> | Subject | Re: thinkpad x200 X.server not work with gm4500 graphics |
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On Mon, 10 Nov 2008 23:25:18 +0800 arrow.ebd@gmail.com wrote:
> deal, > > My thinkpad x200's X.server can not startup on the kernel 2.6.28,
Were any earlier kernels OK? If so, which version(s)?
Thanks.
> and dmesg will show as below: > -->>-- > [drm] Initialized drm 1.1.0 20060810 > pci 0000:00:02.0: power state changed by ACPI to D0 > pci 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 > pci 0000:00:02.0: setting latency timer to 64 > [drm] Initialized i915 1.6.0 20060119 on minor 0 > pci 0000:00:02.0: pg_start == 0x00001f7f, intel_private.gtt_entries == 0x00001fff > pci 0000:00:02.0: trying to insert into local/stolen memory > --<<-- > > Then, I change file "drivers/char/agp/intel-agp.c" as this: > -->>-- > --diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c > index 9cf6e9b..e681f75 100644 > --- a/drivers/char/agp/intel-agp.c > +++ b/drivers/char/agp/intel-agp.c > @@ -528,7 +528,8 @@ static void intel_i830_init_gtt_entries(void) > * stolen, ignore it in stolen gtt entries counting. However, > * 4KB of the stolen memory doesn't get mapped to the GTT. > */ > - size = 4; > + /* size = 4; */ > + size = 516; > } else { > /* On previous hardware, the GTT size was just what was > * required to map the aperture. > --<<-- > > And Xorg can start now. > (1) Is it correct ? > Because older kernel use size as "512 + 4" at here, but now use "size = 4". > (2) How to deal with it if the patch is not right ? > (3) How to get more specification about gm4500 ?
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