I'm using a Sapphire Radeon HD 4550. It is connected to a Sony TV through the HDMI connector. Resolution and colors are OK, but it works painfully slow (I mean I can even tell the steps of the transitions between different backgrounds in Gnome, for instance). I have tried all driver options I found through Internet, like: Option "AccelMethod" "exa" # [<str>] Option "DRI" "on" # [<bool>] Option "Audio" "on" # [<bool>] Option "HDMI" "all" # [<str>] Identifier "Card0" Driver "radeonhd" VendorName "ATI Technologies Inc" BoardName "RV710 [Radeon HD 4550]" BusID "PCI:1:0:0" (By the way, I'm getting no audio through the HDMI connector either). I have found the same speed problem with the ati driver. I'm using Archlinux, completely updated. Xorg info: X.Org X Server 1.7.1.901 (1.7.2 RC 1) Release Date: 2009-11-6 X Protocol Version 11, Revision 0 Build Operating System: Linux 2.6.31-ARCH i686 Current Operating System: Linux jgg-hp01-gl 2.6.31-ARCH #1 SMP PREEMPT Tue Nov 10 19:48:17 CET 2009 i686 Kernel command line: root=/dev/disk/by-uuid/f0f8a0da-1cf0-4ac2-8f5c-2dd9a884ed21 ro vga=794 Build Date: 08 November 2009 04:12:47PM Current version of pixman: 0.16.2 Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Kind regards and thanks in advance for any help!
Attach your Xorg.0.log please
Please provide also output of: dmesg | egrep "drm|radeon" For audio issue please create another bug report.
Created attachment 31292 [details] Output of `dmesg|egrep "drm|radeon"`
Created attachment 31293 [details] Copy of Xorg.0.log
radeonhd doesn't support KMS. Try again without KMS being enabled by default.
(In reply to comment #5) > radeonhd doesn't support KMS. > > Try again without KMS being enabled by default. > Well, this SOLVED my problem, indeed. I tried to reboot adding "radeon.modeset=0" to the boot line, and it worked like a charm. To make it permanent, I created a file named /etc/modprobe.d/radeon.conf and wrote into it the following line: options radeon modeset=0 After rebooting, it seems to be behaving perfectly. I guess this won't be required after KMS is supported for these cards too. By the way, all the solution lines I used are coming from the wiki.archlinux.org. I added there what I have learned here as well. Thanks for all! I will open another bug for the audio problem. I guess this bug can be closed now? Kind regards!
(In reply to comment #6) > After rebooting, it seems to be behaving perfectly. I guess this won't be > required after KMS is supported for these cards too. KMS is supported for all cards (r1xx-r7xx), you just need a new enough version of xf86-video-ati. radeonhd does not support kms at the moment.
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