>-----Original Message-----
>From: Jesse Barnes [mailto:[EMAIL PROTECTED]
>Sent: 2008年3月4日 3:20
>To: dri-devel@lists.sourceforge.net
>Cc: Nan hai Zou
>Subject: Re: drm: Branch 'master'
>
>On Sunday, March 02, 2008 10:17 pm Nan hai Zou wrote:
>> shared-core/i915_irq.c | 7 +++++++
>> 1 file changed, 7 insertions(+)
>>
>> New commits:
>> commit 63fd6f284ddd1096d34b39941683ae244c1e01fc
>> Author: Zou Nan hai <[EMAIL PROTECTED]>
>> Date: Mon Mar 3 14:49:49 2008 +0800
>>
>> [i915] 2D driver may reset Frame count value, this may lead driver
>> to leap it's vblank count a huge value.
>> This will stall some applications that switch video mode if
>> vblank_mode is set to a non zero value in drirc.
>
>Nanhai, have you seen this bug in practice? The new code has an ioctl
>intended to be used in this case (see the pre- and post- mode set functions),
>but the 2d driver isn't using it yet...
>
>Jesse
Yes, actually you may set vblank_mode to 1 or 2 in drirc.
Then play games like quake4 demo. You will see the application stop at the
first few frames.
Thanks
Zou Nan hai
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