[ltp] T43 questions (video and suspend to RAM)

Greg Macek linux-thinkpad@linux-thinkpad.org
Mon, 04 Jul 2005 21:34:36 -0500


Jan Stoess wrote:
>>However, the problem comes when trying to put it into sleep mode. It
>>goes to sleep fine and even tries to resume. But the hard drive light
>>just stays lit and I can't do anything with the computer until I hard
>>reboot it. Has anyone gotten Suspend to RAM working yet? Should I just
>>try hibernate instead? I did see this on ThinkWiki
>>
> 
> http://thinkwiki.org/wiki/How_to_make_ACPI_work#Suspend_to_RAM_.28Sleep.
> 29
> 
>>Any pointers are appreciated. Thanks.
>>
> 
> I got a T43p with the X.org Radeon driver and working suspend/resume and
> hibernate. For me, the key to get this working was to use a tool
> (vbetool) to save and restore the video card's state before suspending
> respectively after waking up. This also applies to hibernating.
> Searching for vbetool on this mailing list should point you to the
> original postings. By the way, this did not work properly when using the
> fglrx drivers from ATI. Also, I could not get the radeon-specific
> in-kernel frame buffer (radeonfb) and suspend/resume to work. With the
> vesa framebuffer, it works fine, though, and also with no framebuffer
> support at all.
> 
> Although it's a different video card, this may still apply to you.
> 
> Best,
> -Jan

Thanks for the replies. What distro are you running with all of this
working? I saw on ThinkWiki that there is a SATA powermanagement patch
so the HDD powers down properly. Fedora Core 4 now has a new kernel
available that may have this in the kernel now, but I'm still trying to
track down this information. Do you have suspend to RAM working or just
hibernate? Any config info you have would be great. Thanks.

Greg