Arch Linux

Spacenick

Member

From: Germany

Registered: 2010-04-02

Posts: 168

xf86-radeonhd broken with new Kernel got problems without xorg.conf

Hi all,
according to lspci I got a
"01:00.0 VGA compatible controller: ATI Technologies Inc M56P [Radeon Mobility X1600]"
I've had problems with it and the open source drivers for a long time in both Ubuntu and Arch (round about every 10 minutes the monitor (of two) which doesn't have the mouse on it flickers white for a split second but long enough to be annoying).
I solved it by using radeonhd which doesn't have this problem even though it's performance is slightly worse, i'm not a gamer so I dind't care too much.
However now radeonhd has become extremely slow probably due to KMS so I mv'ed my xorg.conf and am running without one using the radeon driver.
Performance is great but I got the flicker problem back. Does anyone have an idea what to do? This card has also not worked with recent fglrx versions by the way (the README says it supports M55 + M56 or so but explicitly states that M56P is not supported).
many thanks in advance Niklas

clu

Member

Registered: 2008-07-05

Posts: 40

Re: xf86-radeonhd broken with new Kernel got problems without xorg.conf

I have the same video card and have also had issues with both. After the most recent update radeonhd is unusable (slowwwww). I've switched to back radeon and have not had any flicker problems at the moment.

Edit: I am having flickering problems. Not often but they are there...

I'm digging into what makes radeonhd so slow for now and trying to find a fix...

Last edited by clu (2010-04-26 04:53:39)

---

Kick out the jams! -- AUR

kaimerra

Member

Registered: 2010-04-10

Posts: 6

Re: xf86-radeonhd broken with new Kernel got problems without xorg.conf

I recently started using Arch and have a Radeon Mobility X1600 as well.  That flicker is annoying.  I tried to use the radeonhd driver, but when GDM starts i just get a blank screen and I can't switch to another TTY.

How did you get radeonhd to work?  with a specific Xorg.conf?

clu

Member

Registered: 2008-07-05

Posts: 40

Re: xf86-radeonhd broken with new Kernel got problems without xorg.conf

So I have radeonhd working properly again with the Radeon Mobility X1600.

I recommend disabling KMS and trying radeonhd. You can disable the KMS by following these instructions: http://wiki.archlinux.org/index.php/ATI#Disable_KMS

This is working much more nicely than the regular radeon driver with the flicker problems. The speed difference with KMS disabled is VERY noticeable. Hopefully this will be fixed soon...

---

Kick out the jams! -- AUR

AndyRTR

Developer

From: Magdeburg/Germany

Registered: 2005-10-07

Posts: 1,642

Re: xf86-radeonhd broken with new Kernel got problems without xorg.conf

RadeonHD is almost deprcated. See news at phoronix. You'd better switch to free radeon driver.

kaimerra

Member

Registered: 2010-04-10

Posts: 6

Re: xf86-radeonhd broken with new Kernel got problems without xorg.conf

I don't see any recent news on the radeonhd driver.  Could you enlighten us AndyRTR?

flamelab

Member

From: Athens, Hellas (Greece)

Registered: 2007-12-26

Posts: 2,160

Re: xf86-radeonhd broken with new Kernel got problems without xorg.conf

I don't see any recent news on the radeonhd driver.  Could you enlighten us AndyRTR?

http://bbs.archlinux.org/viewtopic.php? … 53#p621253

and yes, phoronix posted a news post that says the Opensuse drops support for radeonhd. That means, the end of radeonhd.