I'v reported this bug on Ubuntu Jaunty (9.04) : https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/325394 xserver-xorg-video-radeon 1:6.10.0-1ubuntu1 claim to support "RV770 Radeon HD 4850/4870" (from man radeon) but in fact, when xorg come up screen go white and system freeze. kagou@agape:~$ lspci | grep VGA 02:00.0 VGA compatible controller: ATI Technologies Inc RV770 [Radeon HD 4850] kagou@agape:~$ lspci -n | grep 0300 02:00.0 0300: 1002:9442 kagou@agape:~$
Please attach your xorg.conf and xorg log.
the xorg.conf is empty -> Xorg detection or the xorg.conf is a failsafe xorg.conf with just driver set to "ati"
please attach your xorg log. It should be in /var/log/Xorg.*.log
Created attachment 22811 [details] [review] Xorg.log
(In reply to comment #4) > Created an attachment (id=22811) [details] > Xorg.log > This is the log from vesa. If ubuntu safe mode kicks in, it will run vesa. The ati log should be one of the other Xorg logs in /var/log.
Nothing is wrote on Xorg.log. I'v set it empty. modified xorg.conf -> set driver=ati reboot when xorg launch->white screen...3 seconds later system reboot. I boot under another linux system, access Xorg.log and is always empty
Bug is not resolved in newer xserver-xorg-video-ati (1:6.10.99.0-1ubuntu1)
Bug is confirmed by Bryce Harrington on https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/325394 with another 4850
please try ati git master. I think commit 42492c70c481c88911337eefb97ba9d030adf7b6 should fix it.
This seems to only affect 1 GB cards.
Bryce Harrington have made a package with this patch but this is not solving the bug for me :(
fixed in master: cadae2a8d9979b2d61eae7d1f7a9ab8f5eb28e83
I confirm that this patch solve the bug for me :) Thanks !
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