Dreadfull flash fullscreen performance when using GRUB_TERMINAL=gfxterm

[Sandro Mani]

Hi,

I have noticed that when using GRUB_TERMINAL=gfxterm (that is, the 
default option, which I think is gfxterm), full-screen flash performance 
is bad (on a 1440x900 screen it is barely ok, on a 1920x1200 screen it's 
terrible).
But if I put GRUB_TERMINAL=console, the performance drammatically 
improves. I am seeing this on rawhide with a intel 4500MHD IGP (i915 
driver).

I am unsure which is the best package to file the bug for: grub2 or 
xorg-x11-drv-intel?

Thanks,
Sandro

[Bill Nottingham]

Sandro Mani ([e-mail]) said:
> Hi,
>
> I have noticed that when using GRUB_TERMINAL=gfxterm (that is, the
> default option, which I think is gfxterm), full-screen flash
> performance is bad (on a 1440x900 screen it is barely ok, on a
> 1920x1200 screen it's terrible).
> But if I put GRUB_TERMINAL=console, the performance drammatically
> improves. I am seeing this on rawhide with a intel 4500MHD IGP (i915
> driver).
>
> I am unsure which is the best package to file the bug for: grub2 or
> xorg-x11-drv-intel?

I'd start with grub2.

Bill

[Kamil Paral]

> Hi,
>
> I have noticed that when using GRUB_TERMINAL=gfxterm (that is, the
> default option, which I think is gfxterm), full-screen flash
> performance
> is bad (on a 1440x900 screen it is barely ok, on a 1920x1200 screen
> it's
> terrible).
> But if I put GRUB_TERMINAL=console, the performance drammatically
> improves. I am seeing this on rawhide with a intel 4500MHD IGP (i915
> driver).
>
> I am unsure which is the best package to file the bug for: grub2 or
> xorg-x11-drv-intel?

Confirmed with Thinkpad T500 and Intel 4500MHD, Fedora 17. If I hadn't seen this with my own eyes, I wouldn't have believed this can be related. The bugzilla is here:
https://bugzilla.redhat.com/show_bug.cgi?id=838723