I wrote and now I'm answering my own post:
nate" <centos@xxxxxxxxxxxxxxxx> wrote:
> David G. Miller wrote:
>
>
>> >
>> > Section "Device"
>> > Identifier "Videocard0"
>> > Driver "vesa"
>> > EndSection
>>
>
> [..]
>
>
>> > and the video card is (this is a single card that shows up twice in lspci):
>> >
>> > 04:00.0 VGA compatible controller: ATI Technologies Inc RV516 [Radeon
>> > X1300/X1550 Series] (prog-if 00 [VGA])
>>
>
> any particular reason why your using the vesa driver on what seems to
> be a fairly recent ATI card instead of the ATI specific drivers? Perhaps
> the vesa driver doesn't work as well with power management(never used it
> myself for very long).
>
> I'd try the ATI drivers and see if it fixes the behavior, you'll probably
> get much better performance at the same time, with perhaps a bit less
> stability depending on what you do.
>
> nate
It's what the install configurator came up with and the ati driver
doesn't work with this video card (output from startx):
...
(WW) RADEON: No matching Device section for instance (BusID PCI:4:0:1) found
(WW) R128: No matching Device section for instance (BusID PCI:4:0:1) found
(EE) No devices detected.
Fatal server error:
no screens found
XIO: fatal IO error 104 (Connection reset by peer) on X server ":0.0"
after 0 requests (0 known processed) with 0 events remaining.
I like getting a new install stable and fully functional with open
source drivers before introducing perturbations like using a proprietary
display driver. That being said, I just installed the ATI proprietary
driver. So far the system is stable. I'll see whether the monitor
correctly goes to a low power mode tonight.
The ATI proprietary driver seems to have fixed the problem. The monitor
was in power save mode when I checked it this morning.
The ATI Linux Driver wiki at
http://wiki.cchtml.com/index.php/Red_Hat_Enterprise_Linux is very badly
out of date. It has lots of dire warnings about things not working,
work arounds required, etc. I pulled down the driver package from the
ATI site, ran it to create a Red Hat rpm and installed the RPM. After I
rebooted, everything just worked. I added some comments to the wiki to
indicate that the problems described there only apply to RHEL/CentOS
5.0. Upgrading a 5.0 install to 5.1 or installing from 5.1 images and
then installing the ATI proprietary driver is a piece of cake.
It would be nice if the open source "ati" display driver got extended to
include more recent ATI video cards. I'm now running a "tainted" kernel
since I have the proprietary fglrx kernel module. Unfortunately, as
with how this thread got started, lots of functionality isn't there with
the "vesa" display driver.
Cheers,
Dave
--
Politics, n. Strife of interests masquerading as a contest of principles.
-- Ambrose Bierce
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