Bug#618900: xserver-xorg-video-mga: does not work with MGA G100 chip
On Sat, Mar 19, 2011 at 14:37:35 +0100, Martin wrote:
> Package: xserver-xorg-video-mga
> Version: 1:1.4.11.dfsg-4+squeeze1
> Severity: important
>
> When starting X from console with startx video changes to graphic mode,
> but the picture on the screen is all messed up. I can not see anything
> sane. Bottom half of screen is black, only upper half is used by X but
> it is so messed up that I can not recognize anything where to click.
>
> The computer is actually working, so I can switch to console with
> CTRL-ALT-F1. But at this time the screen is messed up on console too.
> The screen is full of some random symbols [letters/puctuation marks] and
> all those letter kind of dance [to me it seems like sync signal is bad].
> I can type some commands but and see that some characters on screen are
> changing but it does not echo character that I type but some random
> character. And command do get executed. I can for example type:
> $ sudo reboot
> and computer do reboot, but I can not see what I am typing.
>
> Basically at this point computer is not usable either in graphic mode or
> on console.
>
> Just to make sure my graphic card or monitor are not dead I installed
> Lenny again and all worked well.
>
> If I use 'vesa' as driver instead of 'mga' the graphical desktop shows OK
> but it is not usable because the useage of CPU by X is 100% and it takes
> ages to open any window [xterm or xclock for example].
>
> For fastest fix that comes to mind now is to use driver from lenny.
> Is it possible? Or can I download and recompile lennys driver to work
> in squeeze?
>
Not really, you'd have to downgrade the whole X stack to lenny. Can you
please attach X logs from both lenny and squeeze to this bug for
comparison?
Cheers,
Julien
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