Red Hat Bugzilla – Bug 274811
restrict video mode within ES1000's capability
Last modified: 2013-09-30 20:40:50 EDT
Description of problem:
When connect a digital monitor which supports max 1600x1200 resolution, radeon
driver will set 1600x1200@24bit mode for output, however, this mode is out of
ES1000's capacity. video corruption will occur in this case.
Steps to Reproduce:
1. install RHEL5
2. connect a digital monitor with max 1600x1200 resolution
video corruption will occur
Radeon driver has its own mode validation routine for digital monitors, this
routine forget to check clock limations for output mode.we add clock range
check in this routine to restrict output mode within chip's capability.
Created attachment 184951 [details]
add pixel clock check while validate mode for digital monitors
Patch already applied for https://bugzilla.redhat.com/show_bug.cgi?id=554414 should already solve the issue.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.