Messages in this thread Patch in this message | | | Date | Mon, 10 Nov 2008 23:25:18 +0800 | From | arrow.ebd@gmail ... | Subject | thinkpad x200 X.server not work with gm4500 graphics |
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deal,
My thinkpad x200's X.server can not startup on the kernel 2.6.28, 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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