[ltp] Mails from ATI about the Suspend-To-Ram problem with fglrx drivers

[Mario Limonciello]

Nils wrote:

>>What has been your makeshift solution in the meanwhile.  I am switching
>>to ACPI from APM because I was getting random crashing and didn't like
>>the power usage from APM when I knew it should a lot better.  So far
>>today in searching these forums, the only solution I see that still uses
>>fglrx is to kill the X server prior to suspending, followed by starting
>>it right after resuming, is this the case, or do you have a different
>>makeshift solution?
>>
>>Mario
>>    
>>
>
>I am sorry I haven't a good solution. In the moment I use acpi (boot option: 
>acpi_sleep=s3_bios) with the XFree/Xorg radeon driver (and radeonfb for my 
>console). This is working perfrectly, but without 3D acceleration. If I need 
>3D acceleration I  boot with the option video=radeonfb:off . You don't need a 
>reboot if you do not use the radeonfb.Then I restart my X-Server with the 
>fglrx. Play a game .... After this I close the X-Server and restart with the 
>radeon driver. (Sometimes you need to reboot) Now everything is working.
>Okay, it's not a good solution, but I don't need 3D acceleration very often. 
>I have no hope that ATI has the ability to write a reasonable driver in the 
>future :-( This is really embarassing, they should release their sources and 
>it will be fixed in two days. 
>Nils
>  
>
I have wonderful news!!!!! I finally got suspend to ram working with the 
fglrx driver!!!!!!!!!!!!!!!!!!!!!!!!!!!

Whats required is this tool vbetool: 
http://www.srcf.ucam.org/%7Emjg59/vbetool/vbetool_0.2.orig.tar.gz

You will need to patch this package: 
http://sourceforge.net/mailarchive/message.php?msg_id=10770502

Inside your /etc/acpi/default.sh undre the hotkey setting:
                                        00001004)
                                                rmmod ehci_hcd ohci_hcd 
uhci_hcd
                                                /usr/local/sbin/vbetool 
vbestate save > /tmp/vbestate
                                                chvt 1
                                                echo 3 > /proc/acpi/sleep
                                                /usr/local/sbin/vbetool post
                                                /usr/local/sbin/vbetool 
vbestate restore < /tmp/vbestate
                                                chvt 7
                                                rm -f /tmp/vbestate
                                                modprobe ehci_hcd
                                                modprobe ohci_hcd
                                                modprobe uhci_hcd
                                                ;;

This seems to work perfectly for me at least twice in a row, but I 
haven't tried more yet, I was too excited to post this.