|Summary:||On-chip RMX mode cause video corrupt on IBM server|
|Product:||Red Hat Enterprise Linux 5||Reporter:||LisaWu <liswu>|
|Component:||xorg-x11-drv-ati||Assignee:||Dave Airlie <airlied>|
|Status:||CLOSED ERRATA||QA Contact:|
|Version:||5.0||CC:||bugproxy, fkuhar, kstansel, liswu, luvella, poelstra, rod.macdonald, wendyh, woliu, xgl-maint, yma, zcerza|
|Fixed In Version:||RHEA-2008-0474||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|Last Closed:||2008-05-21 17:31:00 UTC||Type:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
|Cloudforms Team:||---||Target Upstream Version:|
Description LisaWu 2007-04-04 03:39:10 UTC
Description of problem: when install RHEL5-BETA2 on IBM Lewis server, video on local monitor is in poor quality, and there is no video output on remote control. Version-Release number of selected component (if applicable): xorg-x11-drv-ati-6.6.3-1.el5.rpm How reproducible: always Steps to Reproduce: 1.connect a monitor to server 2.log in to the remote control 3.install rhel5-beta2 and start X-windows Expected results: following modes on both local monitor and remote control should be OK. vesa mode: 1024x768@75hz, 70hz,60hz 800x600@75hz,72hz,60hz Actual results: None of the above modes are OK. Additional info: on-chip RMX mode is only enabled when the driver thinks it’s driving a digital panel which will cause poor quality on CRT. This is also an old day’s radeon driver preference that probably shouldn’t be used any more because almost all modern TMDS panels have internal scaler which usually can result in better quality than our internal RMX. in our case, radeon driver use RMX modes for remote video by default, however, the stretched RMX modes can't be well support. To fix this bug, we can change digital pannel mode validation routine not to use RMX mode by default, but validate modes by matching modes from EDID info instead.
Comment 1 LisaWu 2007-04-04 03:39:11 UTC
Created attachment 151641 [details] while validate DFP modes, we matching modes from EDID info by default
Comment 2 LisaWu 2007-04-04 03:48:14 UTC
#235157 is the duplicate of this one. sorry for the inconvenience.
Comment 3 IBM Bug Proxy 2007-04-19 17:35:30 UTC
Created attachment 153036 [details] radeon-change-DFP-mode-validation-routine.patch
Comment 4 IBM Bug Proxy 2007-04-19 17:36:09 UTC
----- Additional Comments From firstname.lastname@example.org 2007-04-19 13:33 EDT ------- Patch from RedHat Reverse mirror of an attachment
Comment 5 LisaWu 2007-04-20 02:17:02 UTC
more information is available at upstream bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=10620
Comment 6 LisaWu 2007-04-20 02:59:12 UTC
Created attachment 153082 [details] disable on-chip RMX using ddc_mode option we would like to disable on-chip RMX by enable ddc_mode option. with this modification, there will be minimal impact to the upstream Xorg. when IBM Lewis server is detected, ddc_mode is automatically enabled, so the on-chip RMX will be disabled for this machine.
Comment 7 Rod Macdonald 2007-07-10 21:58:36 UTC
Can you advise if this latest patch is acceptable for the next RH update? And if so has it been scheduled?
Comment 8 Matěj Cepl 2007-08-17 13:14:48 UTC
*** Bug 235157 has been marked as a duplicate of this bug. ***
Comment 9 Adam Jackson 2007-10-04 16:05:15 UTC
Looks fine to me. Devel ack, target for 5.2.
Comment 10 RHEL Product and Program Management 2007-10-16 04:02:50 UTC
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release.
Comment 12 IBM Bug Proxy 2007-12-06 16:57:01 UTC
------- Comment From email@example.com 2007-10-04 12:05 EST-------
Comment 14 John Poelstra 2008-04-23 17:38:50 UTC
Greetings Red Hat Partner, A fix for this issue should be included in the latest packages contained in RHEL5.2-Snapshot6--available now on partners.redhat.com. We are nearing GA for 5.2 so please test and confirm that your issue is fixed ASAP. After you (Red Hat Partner) have verified that this issue has been addressed, please perform the following: 1) Change the *status* of this bug to VERIFIED. 2) Add *keyword* of PartnerVerified (leaving the existing keywords unmodified) If this issue is not fixed, please add a comment describing the most recent symptoms of the problem you are having and change the status of the bug to ASSIGNED. If you are receiving this message in Issue Tracker, please reply with a message to Issue Tracker about your results and I will update bugzilla for you. If you need assistance accessing ftp://partners.redhat.com, please contact your Partner Manager. Thank you
Comment 16 errata-xmlrpc 2008-05-21 17:31:00 UTC
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHEA-2008-0474.html