Red Hat Bugzilla – Bug 505538
Bad support of ATI Technologies Inc Radeon RV100 QY in graphic mode
Last modified: 2010-05-24 16:08:17 EDT
Description of problem:
I have a Fujitsu Primergy RX220 with a
VGA compatible controller: ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE]
Until fedora 11 it was no problem to install the system in graphic mode
and to work with a graphical desktop.
Doing a default installation is almost impossible, because
it is hard to position the mouse cursor on the screen, also the echo
of keyboard input is extremely slow.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. install a fujitsu primergy rx220
see description of the problem
A installation with basic graphics does not work -
it switches automatically to textmode ( textmode is not acceptable,
because it has not enough functionality )
Bypass is currently only installation with vnc.
Working after the installation is finished has less problems,
but there are still problems, e.g. login screen has extremly
Thanks for the bug report. We have reviewed the information you have provided above, and there is some additional information we require that will be helpful in our diagnosis of this issue.
Please attach your X server config file (/etc/X11/xorg.conf, if available), /var/log/dmesg, and X server log file (/var/log/Xorg.*.log) to the bug report as individual uncompressed file attachments using the bugzilla file attachment link below.
We will review this issue again once you've had a chance to attach this information.
Thanks in advance.
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Today I tried to install rhel6-alpha-1 on the same system :
the behaviour of rhel-6 is much better, there was only one problem
with graphical input and that was the screen for setting the timezone
( locating a city on the map ).
One remark, unfortunately I was not able to complete the installation,
so this was only verified for the first screens including allocation of
I had the same problem of slow graphics with Fedora 11.
VGA compatible controller: ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE]
with Fedora 10 it worked fine. After upgrading to Fedora 11, the X was _VERY_ slow. The pointer was taking several seconds to respond to a mouse movement. Logging in took over ten minutes. Even running fvwm, I didn't have the patience for it to come up fully.
I couldn't find any xorg.conf settings to fix the problem. However, adding nomodeset to the kernel entry in /etc/grub.conf fixed the problem completely. So I guess this is a kernel bug.
Thanks for #12, it seems to solve my problem
Question to RedHat, is the nomodeset parameter just a bypass
or a solution ?!
Since this bugzilla report was filed, there have been several major updates in various components of the Xorg system, which may have resolved this issue. Users who have experienced this problem are encouraged to upgrade their system to the latest version of their packages. For packages from updates-testing repository you can use command
yum upgrade --enablerepo='*-updates-testing'
Alternatively, you can also try to test whether this bug is reproducible with the upcoming Fedora 12 distribution by downloading LiveMedia of F12 Beta available at http://alt.fedoraproject.org/pub/alt/nightly-composes/ . By using that you get all the latest packages without need to install anything on your computer. For more information on using LiveMedia take a look at https://fedoraproject.org/wiki/FedoraLiveCD .
Please, if you experience this problem on the up-to-date system, let us now in the comment for this bug, or whether the upgraded system works for you.
If you won't be able to reply in one month, I will have to close this bug as INSUFFICIENT_DATA. Thank you.
[This is a bulk message for all open Fedora Rawhide Xorg-related bugs. I'm adding myself to the CC list for each bug, so I'll see any comments you make after this and do my best to make sure every issue gets proper attention.]
(In reply to comment #14)
> Since this bugzilla report was filed, there have been several major updates in
> various components of the Xorg system, which may have resolved this issue.
> Users who have experienced this problem are encouraged to upgrade their system
> to the latest version of their packages. For packages from updates-testing
> repository you can use command
> yum upgrade --enablerepo='*-updates-testing'
> Alternatively, you can also try to test whether this bug is reproducible with
> the upcoming Fedora 12 distribution by downloading LiveMedia of F12 Beta
> available at http://alt.fedoraproject.org/pub/alt/nightly-composes/ . By using
> that you get all the latest packages without need to install anything on your
> computer. For more information on using LiveMedia take a look at
> https://fedoraproject.org/wiki/FedoraLiveCD .
> Please, if you experience this problem on the up-to-date system, let us now in
> the comment for this bug, or whether the upgraded system works for you.
> If you won't be able to reply in one month, I will have to close this bug as
> INSUFFICIENT_DATA. Thank you.
> [This is a bulk message for all open Fedora Rawhide Xorg-related bugs. I'm
> adding myself to the CC list for each bug, so I'll see any comments you make
> after this and do my best to make sure every issue gets proper attention.]
With an up to date Fedora 11 system, the problem persists. Without "nomodeset" on the kernel command line, the system is unusable in X windows mode, but works fine in console mode. With "nomodeset" everything works. So waiting over 3 months and hoping it would solve itself didn't work:)
Winfrid asked a question back in July, which I still consider relevant. Is my "nomodeset" just a workaround, as I suspect?
I have since upgraded to Fedora 12 plus updates. There are some differences and initially I couldn't get things to work properly either with or without nomodeset. With nomodeset I had broken fonts until I set AccelMode to EXA (bug 557358). Without it I first had crashes, which seem to be due to having two cables connecting the same video card to the same monitor. That worked in F11 but in F12 it interprets it as a dual head system and has memory problems. Unplugging the second cable fixed that (Maybe bug 542729?). After that, I am back to performance problems but not as bad as in F11. Whereas in F11 I had VERY slow response to each mouse movement, in F12 I have normal response most of the time with hangs for about a second once in a while. This is now using:
It is still not really usable like this, but it is a step in the right direction.
I noticed a lot of messages:
init: ck-log-system-stop respawning too fast, stopped
in the system log if I use AccelMode EXA. Otherwise I get no messages that would give a clue as to why it is hanging.
I think I can now answer Winfrid's question from July. Previously Xorg used user space mode setting (UMS) and now there is a kernel space version (KMS). The newer kernels default to KMS, but "nomodeset" tells it to go back to UMS. So it seems that the kernel mode setting feature is new and not yet fully debugged, but it is the default. Elsewhere Jerome Glisse wrote "boot with KMS, we are low prioritizing UMS bugs" so I guess that it is more of a fallback to the old way of doing things, which is now deemed obsolete rather than an actual workaround.
This seems to be in fixed Fedora 12 with the updates:
I'm not sure which of the two made the difference. In any case, glxgears now gives me about 100 FPS without any jumping. This is still using EXA acceleration as bug 557358 hasn't been fixed yet.
So thanks for fixing it, at least in Fedora 12. I don't know about Fedora 11, though as I no longer have any systems to test it on. I would have no objection to closing the bug as NEXTRELEASE. However, I guess that is Winfrid's call.
(In reply to comment #13)
> Thanks for #12, it seems to solve my problem
Could you please try with the latest upgrades to F12 (both with and without nomodeset)? Does it help?
> Question to RedHat, is the nomodeset parameter just a bypass
> or a solution ?!
Yes, certainly, it is just a temporary crutch, and if something works without nomodeset we don't care about nomodeset anymore.
I'm still encountering a similar hang on a
Compaq Deskpro 686
Graphics controller is nVidia NV5 RIVA TNT2 Pro rev 15
Chipset is intel 82815.
I installed F12 from a CD, which installed and booted fine, and then performed a yum upgrade.
The original kernel, 22.214.171.124-127.fc12.i686.PAE, works fine.
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Closing as wosrkforme per comment 17.
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[This triage is part of collective effort done by students of University of
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