Bad V_BIOS checksum - Have I killed it with 915resolution?

[Eric Anholt]

On Tue, 2008-03-04 at 21:08 +0100, Max Meyer wrote:
> Hi,
> 
> I'm using gentoo linux, kernel 2.6.23-r6 on my laptop and emerged the
> x11-drivers/xf86-video-i810 version 2.2.0.90 for my 855GM card. I've
> had some problems enabling DRI recently, so I checked out the
> Xorg.0.log and found these warnings I believe everything starts with:

There's no reason to run i915resolution since xf86-video-intel-2.0, so
you can probably answer your own question after a reboot.

> # cat /var/log/Xorg.0.log|grep WW
>         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
> (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
> (WW) intel(0): Bad V_BIOS checksum
> (WW) intel(0): Register 0x70180 (DSPACNTR) changed from 0x00000000 to 0x58000000
> (WW) intel(0): DSPACNTR before: disabled, pipe A
> (WW) intel(0): DSPACNTR after: disabled, pipe A
> (WW) intel(0): Removed DRI frontbuffer mapping in compatibility mode.
> (WW) intel(0): DRIGetDeviceInfo will report incorrect frontbuffer handle.
> (WW) intel(0): xf86AllocateGARTMemory: allocation of 1536 pages failed
> (WW) intel(0): Allocation error, framebuffer compression disabled
> (WW) intel(0): xf86AllocateGARTMemory: allocation of 10 pages failed
> (WW) intel(0): Failed to allocate texture space.
> (WW) intel(0): xf86AllocateGARTMemory: allocation of 10 pages failed
> (WW) intel(0): Failed to allocate texture space.
> (WW) intel(0): Not enough video memory.  Disabling DRI.
> (WW) intel(0): xf86AllocateGARTMemory: allocation of 10 pages failed
> (WW) intel(0): EXA compatibility mode.  Output rotation rendering performance may suffer
> (WW) intel(0): Chosen PLL clock of 96.0 Mhz more than 2% away from desired 130.3 Mhz
> (WW) intel(0): Option 'ForcePCIMode' is not used
> (WW) intel(0): Option 'LeftOf' is not used
> (WW) intel(0): Chosen PLL clock of 96.0 Mhz more than 2% away from desired 130.3 Mhz
> 
> 
> 
> Perhaps I killed the V_BIOS via 915resolution:
> 
> # 915resolution -l
> Intel 800/900 Series VBIOS Hack : version 0.5.3
> 
> Chipset: 855GM
> BIOS: TYPE 1
> Mode Table Offset: $C0000 + $29f
> Mode Table Entries: 39
> 
> Mode 30 : 640x480, 8 bits/pixel
> Mode 32 : 800x600, 8 bits/pixel
> Mode 34 : 1024x768, 8 bits/pixel
> Mode 38 : 1280x1024, 8 bits/pixel
> Mode 3a : 1600x1200, 8 bits/pixel
> Mode 3c : 1920x1440, 8 bits/pixel
> Mode 41 : 640x480, 16 bits/pixel
> Mode 43 : 800x600, 16 bits/pixel
> Mode 45 : 1024x768, 16 bits/pixel
> Mode 49 : 1280x1024, 16 bits/pixel
> Mode 4b : 1600x1200, 16 bits/pixel
> Mode 4d : 1920x1440, 16 bits/pixel
> Mode 50 : 640x480, 32 bits/pixel
> Mode 52 : 800x600, 32 bits/pixel
> Mode 54 : 1024x768, 32 bits/pixel
> Mode 58 : 1280x1024, 32 bits/pixel
> Mode 5a : 1600x1200, 32 bits/pixel
> Mode 5c : 1920x1440, 32 bits/pixel
> Mode 7c : 1280x801, 8 bits/pixel
> Mode 7d : 1280x801, 16 bits/pixel
> Mode 7e : 1280x801, 32 bits/pixel
> 
> 
> Can anyone help me?
> 
> PS: This is my first question in this mailing list, so if I've done anything wrong, tell me. I promise I'll do better next time ;)
> 
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-- 
Eric Anholt                             anholt at FreeBSD.org
eric at anholt.net                         eric.anholt at intel.com

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