Red Hat Bugzilla – Bug 129744
Radeon driver (7000m) TVDAC output too high for DELL Server
Last modified: 2007-11-30 17:07:03 EST
This is for Dell server using radeon 7000m. Radeon driver has benn
updated to support the special configuration of Dell server. However
Dell reports TVDAC output RGB signal is a bit too high, need to
adjust RGB voltage from ~800mv to ~760mv. See patch below.
--- radeon_driver.c.orig 2004-08-11 11:50:27.000000000 -0400
+++ radeon_driver.c 2004-07-12 10:00:01.000000000 -0400
@@ -5723,7 +5723,7 @@
save->disp_hw_debug |= RADEON_CRT2_DISP1_SEL;
save->tv_dac_cntl &= ~((1<<2) | (3<<8) | (7<<24) |
- save->tv_dac_cntl |= (0x03 | (2<<8) | (0x28<<16));
+ save->tv_dac_cntl |= (0x03 | (2<<8) | (0x58<<16));
RADEONTRACE(("Pitch = %d bytes (virtualX = %d, displayWidth = %d)
Can Red Hat confirm if this patch is going to be in U4 ?
The patch looks very safe to me. It will be committed to our CVS
soon, and slated for RHEL3 U4. The similar patch for RHEL 2.1
will be committed at the same time for the next 2.1 update too.
I'll update the status of the report once it's commited to CVS
Thanks for the patch Hui.
Hui) Can you confirm also if this is commited to Xorg CVS for
the upcoming 6.8.0 release? If it isn't, a bug should be filed
upstream there with a udiff that applies to CVS head, and CC
myself and Kevin on it, as the release is nearing quickly.
It's in current xorg CVS head and will be in 6.8.0 release.
Thanks for merging this to your CVS.
No problem Hui! Thanks again.
Patch updated in 4.3.0-69.EL build, which will be released as
erratum within the next few weeks. Setting status to "ERRATA"
for pending erratum release.
An errata 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.