* [Qemu-devel] High resolution VGA modes
@ 2006-06-13 21:33 Fabrice Bellard
2006-06-13 22:41 ` Anthony Liguori
0 siblings, 1 reply; 3+ messages in thread
From: Fabrice Bellard @ 2006-06-13 21:33 UTC (permalink / raw)
To: qemu-devel
Hi,
The previous commits enable the support of higher resolution VGA modes
in QEMU (1152x864, 1280x1024 and 1600x1200) when using the VESA device
driver (-std-vga option). The VESA device driver is known to work with
Linux and Windows XP.
The VGA memory was increased to 8 MB to enable 1600x1200 with 32 bits
per pixel. I updated the built-in VNC server so that it supports higher
resolutions too.
Note that the Cirrus VGA device driver was not modified, so it has the
same limitations are before (4 MB Video Memory, up to 1280x1024). These
limitations are unfortunately linked to the emulated Cirrus VGA hardware
and guest OS video drivers.
Fabrice.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Qemu-devel] High resolution VGA modes
2006-06-13 21:33 [Qemu-devel] High resolution VGA modes Fabrice Bellard
@ 2006-06-13 22:41 ` Anthony Liguori
2006-06-14 11:08 ` Fabrice Bellard
0 siblings, 1 reply; 3+ messages in thread
From: Anthony Liguori @ 2006-06-13 22:41 UTC (permalink / raw)
To: qemu-devel
Fabrice Bellard wrote:
> Hi,
>
> The previous commits enable the support of higher resolution VGA modes
> in QEMU (1152x864, 1280x1024 and 1600x1200) when using the VESA device
> driver (-std-vga option). The VESA device driver is known to work with
> Linux and Windows XP.
Is 2d acceleration possible with VESA?
Regards,
Anthony Liguori
> The VGA memory was increased to 8 MB to enable 1600x1200 with 32 bits
> per pixel. I updated the built-in VNC server so that it supports
> higher resolutions too.
>
> Note that the Cirrus VGA device driver was not modified, so it has the
> same limitations are before (4 MB Video Memory, up to 1280x1024).
> These limitations are unfortunately linked to the emulated Cirrus VGA
> hardware and guest OS video drivers.
>
> Fabrice.
>
>
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://lists.nongnu.org/mailman/listinfo/qemu-devel
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Qemu-devel] High resolution VGA modes
2006-06-13 22:41 ` Anthony Liguori
@ 2006-06-14 11:08 ` Fabrice Bellard
0 siblings, 0 replies; 3+ messages in thread
From: Fabrice Bellard @ 2006-06-14 11:08 UTC (permalink / raw)
To: qemu-devel
Anthony Liguori wrote:
> Fabrice Bellard wrote:
>
>> Hi,
>>
>> The previous commits enable the support of higher resolution VGA modes
>> in QEMU (1152x864, 1280x1024 and 1600x1200) when using the VESA device
>> driver (-std-vga option). The VESA device driver is known to work with
>> Linux and Windows XP.
>
>
> Is 2d acceleration possible with VESA?
No. But with VESA and virtualisation, the CPU has direct access to the
video RAM, so it can be actually faster than the Cirrus VGA driver,
depending on the quality of the guest OS drivers.
Fabrice.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2006-06-13 21:33 [Qemu-devel] High resolution VGA modes Fabrice Bellard
2006-06-13 22:41 ` Anthony Liguori
2006-06-14 11:08 ` Fabrice Bellard
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