Red Hat Bugzilla – Bug 389891
S3 resuming failed on AMD SB600/SB700+RS690/RS780 platform
Last modified: 2010-07-08 01:44:25 EDT
Description of problem:
S3 resuming failed on AMD SB600/SB700+RS690/RS780 platform by issuing
command "echo mem > /sys/power/state" or "pm-suspend" or pressing system-
>suspend button, the screen is black,and the system has no response.
Version-Release number of selected component (if applicable):
How reproducible: Always
Steps to Reproduce:
1."echo mem > /sys/power/state" or "pm-suspend" or pressing system->suspend
button to enter S3
2.Press powerbtn to resume the system (mobile board)
S3 failed from resuming, the screen is black.
S3 resumes sucessfully.
test on RS690+SB700 mobile board, RS780+SB700 RS690+SB600 platforms.
Created attachment 263181 [details]
the system can resume successfully from S3 by adding "/usr/sbin/vbetool post"
to the resume_video() function in /etc/pm/functions-ati.
This issue exists in RHEL5.1,the system->syspend button does not work,but S3
would resume successfully with command "pm-suspend --quirk-vbe-post".
So, for amd/ati graphics, we have to use the external "vbetool post" to
reinitialize the graphics card in redhat later release, such as RHEL5.2.
Created attachment 263191 [details]
adding the "/usr/sbin/vbetool post" to resume_video function
Fix the S3 issue with the changed attached file.
Could the RHEL suspend script be updated so that it RHEL5 works on the Trevally
closed. it is fixed in RHEL5.3 and later.