Gentoo Archives: gentoo-user

From: Mark Knecht <markknecht@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] ATI Mobility TV-OUT
Date: Mon, 04 Sep 2006 02:36:50
Message-Id: 5bdc1c8b0609031931w2cce8002q6552eed64ad868e3@mail.gmail.com
In Reply to: Re: [gentoo-user] ATI Mobility TV-OUT by Grant
1 On 9/3/06, Grant <emailgrant@×××××.com> wrote:
2 > > > I have a Dell Inspiron 7500 laptop with an ATI Mobility video card. It
3 > > > has an S-video TV-out port that I can't get working. I've read all
4 > > > kinds of stuff about it online, but I'm unsure which way to go.
5 > > >
6 > > > I'm using the "ati" driver right now but I've read that the ati-gatos
7 > > > driver might be better. I haven't even turned this laptop on in quite
8 > > > a while so it's running a lot of old stuff. Should I update x11-xorg
9 > > > to 7.0 and use a particular VIDEO_CARD flag and see if that works? How
10 > > > should my xorg.conf look?
11 > >
12 > > TV-out is probably one of the worst-supported things in X right now.
13 > > There is no "official" X.Org driver that supports it. The gatos driver
14 > > purports to, although it may not work with 7.1. Also I think someone
15 > > posted a patch to the xorg list a few months ago to add it to the ati
16 > > driver.
17 > >
18 > > If you're able to use the binary drivers with your card, you may have
19 > > better luck there.
20 >
21 > I'm running out of steam on this for now, but this seems to be the key
22 > component:
23 >
24 > http://bugs.gentoo.org/show_bug.cgi?id=127642
25 >
26 > it's a patch for xorg 7.0 to enable TV-out with the ati driver. The
27 > old laptop I'm trying to set this up on needs some of work before it's
28 > up to speed and I can test this.
29 >
30
31 Grant - Here's where I got to today:
32
33 1) My machines use the ATI 9100 IGP chipset. No 3D accel. The machines
34 have both composite video and S-Video outputs.
35
36 2) Back under 2.6.16 I used ati-drivers-8.14.x. I had to patch the
37 drivers by hand. That was painful but well documented on one of the
38 online forums.
39
40 3) The 8.14 driver is no longer in portage and apparently doesn't work
41 with the 2.6.17 kernels.
42
43 4) I got 8.28.8 working today using the following extra line in the
44 aticonfig-Device[0] section created by aticonfig:
45
46 Option "ForceMonitors" "nocrt1,nocrt2,tv"
47
48 5) What I found was that during the boot I get text on both the
49 composite video and S-Video outputs. However, when X starts the
50 graphic output is only on the S-Video output. This is different than
51 the older driver where X was available on both.
52
53 6) All of that said I've now got both Pundit-R's working. However the
54 video quality is far worse than the previous driver. It appears that
55 I'm getting just a few frames of video every second. Video from MythTV
56 is very jerky and seems to 'tear' a bit.
57
58 7) Note that this doesn't seem to be nearly as bad when I configure
59 the machines to use the CRT output. I'm going to investigatge buying
60 some sort of VGA->S-Video or Composite video converter. That may work
61 better and not require all this crazy work.
62
63 All in all, very disappointing. I understand the Gentoo devs had
64 their hands tied on a lot of this stuff but it's disappointing to have
65 working drivers get dropped from portage or the driver developers at
66 ATI not continue to move features forward. Or maybe it's still me and
67 my lack of real configuration knowledge.
68
69 Hope this helps,
70 Mark
71 --
72 gentoo-user@g.o mailing list

Replies

Subject Author
Re: [gentoo-user] ATI Mobility TV-OUT Grant <emailgrant@×××××.com>