Gentoo Archives: gentoo-user

From: Jacques Montier <jacques.montier@×××××××××××.fr>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Problems with ancient ATI graphics card
Date: Mon, 25 Oct 2010 08:16:24
Message-Id: 4CC53CB2.7000002@numericable.fr
In Reply to: Re: [gentoo-user] Problems with ancient ATI graphics card by Helmut Jarausch
1 Hi all,
2
3 I have an old RV350 9600 ATI graphic card and the open source radeon
4 driver works fine with 2.6.36 kernel.
5
6 Cheers,
7
8 --
9 Jacques
10
11
12 Le 25/10/2010 09:50, Helmut Jarausch a gentiment tapote:
13
14 > Hi Paul,
15 >
16 > it turned out there is a bug in the linux kernel up to and including
17 > 2.6.36 concerning
18 > drivers/gpu/drm/radeon
19 > when it comes to all graphics chips like RV350.
20 >
21 > Does anybody know about a patch for gentoo-sources-2.6.36 ?
22 >
23 > Many thanks for a hint,
24 > Helmut.
25 >
26 >
27 > On 10/22/10 17:04:24, Paul Hartman wrote:
28 >> On Fri, Oct 22, 2010 at 4:41 AM, Helmut Jarausch
29 >> <jarausch@××××××××××××××××.de> wrote:
30 >>> Hi,
31 >>>
32 >>> this is a bit off topic, since it primarily concerns a laptop
33 >> running
34 >>> OpenSuSe 11.3, but I do need your help and I known there are
35 >> experts
36 >>> here.
37 >>>
38 >>> This old laptop has a
39 >>> radeon RV350 (mobility Radeon 9600 M10) graphics card.
40 >>>
41 >>> There is an xf86-video-ati driver installed.
42 >>>
43 >>> Now, when booting with the (default) radeon.modeset=1
44 >>> the graphics is dead slow (not only for glxgears : 200 frame/s but
45 >> for
46 >>> my OpenGL application (Impressive), as well).
47 >>>
48 >>> Now, when I replace the option on the kernel command line to
49 >>> radeon.modeset=0
50 >>> glxgears is much faster ( about 1800 frames/s )
51 >>> BUT my OpenGL application (python gtk + opengl)
52 >>> now freezes the whole machine - only power on/off can revive
53 >>> it.
54 >>>
55 >>> Hopefully, someone has an idea on what is going wrong here.
56 >>>
57 >>> (The hardware is too old for a recent ATI closed source driver
58 >>> supporting a recent kernel 2.6.34.x)
59 >>>
60 >>> Many thanks for your help which is very much appreciated.
61 >>> Helmut.
62 >> I have a very similar card in my Gentoo laptop (Mobility Radeon 9700,
63 >> I think maybe it's the same as 9600 but clocked higher). I tried KMS
64 >> radeon driver but had some issues, maybe it was user-error but when I
65 >> disabled KMS everything went back to normal.
66 >>
67 >> Otherwise if you want to stick with KMS all I can think of is to try
68 >> different AccelMethod settings in your xorg.conf to see if you get
69 >> better performance from one of them. I think maybe you need to
70 >> disable
71 >> console framebuffer as well, in case you're using one.
72 >>
73 >>
74 >>
75 >

Replies

Subject Author
Re: [gentoo-user] Problems with ancient ATI graphics card Helmut Jarausch <jarausch@××××××××××××××××.de>