From: Matteo Riva on
Squeeze upgrade broke fglrx driver with the new xserver.

How can I downgrade the xserver from 1.7.4 back to 1.6.5 when fglrx
driver was working fine?
What packages do I need to downgrade, and where can I find those
versions?


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From: Boyd Stephen Smith Jr. on
On Friday 29 January 2010 09:51:02 Matteo Riva wrote:
> Squeeze upgrade broke fglrx driver with the new xserver.
>
> How can I downgrade the xserver from 1.7.4 back to 1.6.5 when fglrx
> driver was working fine?
> What packages do I need to downgrade, and where can I find those
> versions?

Package downgrades are not supported. The safest way would be to restore from
your last system backup.

If you still have to go the downgrade route, I suggest you start with xserver-
xorg-core.
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From: Stefaan Himpe on
I also needed to downgrade when the nvidia driver was broken a few weeks
ago. I managed to do so as root using dpkg with the -i option.
Note that apt-get from that moment on complained about some broken
packages on my system (until I did a dist-upgrade when the nvidia driver
was fixed).

For downgrading, I simply used the previous version of the packages, as
found in my /var/cache/apt/archives folder.

If you cannot find the packages there, you can try to search them via
http://snapshot.debian.net/

hth,
Stefaan.

> What packages do I need to downgrade, and where can I find those
> versions?
>
>



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From: Matteo Riva on
On Sat, Jan 30, 2010 at 12:32 AM, Stefaan Himpe <stefaan.himpe(a)gmail.com> wrote:
> I also needed to downgrade when the nvidia driver was broken a few weeks
> ago. I managed to do so as root using dpkg with the -i option.
> Note that apt-get from that moment on complained about some broken packages
> on my system (until I did a dist-upgrade when the nvidia driver was fixed).
>
> For downgrading, I simply used the previous version of the packages, as
> found in my /var/cache/apt/archives folder.
>
> If you cannot find the packages there, you can try to search them via
> http://snapshot.debian.net/

Hello Stefaan, thanks for your reply.

Can you specify which packages you downgraded exactly? I only managed to
find a copy of xserver-common and xserver-xorg-core but installing them
didn't seem to be enough as all I got was a blank screen I could not get
out of (no ctrl+alt+f1/2/3/4).

I found snapshot.debian.net but it seems its last update was on 2008 or
am I looking in the wrong place?


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From: Stefaan Himpe on

> I found snapshot.debian.net but it seems its last update was on 2008 or
> am I looking in the wrong place
Sorry I should have checked before pointing you there.
Make sure to backup any important files (like configuration stuff in /etc)
before you start to fiddle with these things.

Disclaimer: I'm by no means a downgrade expert ;)
Perhaps you could temporarily get the X packages from debian testing in
order to downgrade?

If you really want the previous version: I think if you inspect the
dependencies of the last working version of the xserver-xorg
package you should be able to find out which packages can go with that
(use dpkg --info for that).

The specific packages I downgraded too, if I recall correctly, were the
following
(i cannot give any guarantees that these actually are the right ones,
sorry,
and perhaps you need a different video driver, etc.)

xserver-common_2%3a1.6.5-1_all.deb
xserver-xephyr_2%3a1.6.5-1_i386.deb
xserver-xorg-core_2%3a1.6.5-1_i386.deb
xserver-xorg-input-evdev_1%3a2.2.5-1_i386.deb
xserver-xorg-input-kbd_1%3a1.3.2-4_i386.deb
xserver-xorg-input-mouse_1%3a1.4.0-4_i386.deb
xserver-xorg-input-synaptics_1.2.0-2_i386.deb
xserver-xorg-video-nv_1%3a2.1.13-1_i386.deb

Best regards,
Stefaan.


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