From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8) Gecko/20051201 Fedora/1.5-1.1.fc4.nr Firefox/1.5

Description of problem:
Using echo mem > /sys/power/state, I was able to suspend a Vaio S1XP with great success.  Networking, video and USB all worked on resume.  However, with kernels since 1.1356, this doesn't work.  In some cases, the suspend task doesn't completely properly.  In all cases, the system does not resume i.e. there is a blank screen.

The newer kernels do not have the proprietary ATI driver loaded.

Version-Release number of selected component (if applicable):
kernel-2.6.14-1.1656_FC4

How reproducible:
Always

Steps to Reproduce:
1. echo mem > /sys/power/state
2. Switch laptop back on
3.
  

Actual Results:  System did not resume correctly

Expected Results:  System should resume correctly.

Additional info:

/sbin/lspci:
00:00.0 Host bridge: Intel Corporation 82855PM Processor to I/O Controller (rev 03)
00:01.0 PCI bridge: Intel Corporation 82855PM Processor to AGP Controller (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 83)
00:1f.0 ISA bridge: Intel Corporation 82801DBM (ICH4-M) LPC Interface Bridge (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801DBM (ICH4-M) IDE Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 03)
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
00:1f.6 Modem: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Modem Controller (rev 03)
01:00.0 VGA compatible controller: ATI Technologies Inc RV350 [Mobility Radeon 9600 M10]
02:04.0 CardBus bridge: Texas Instruments PCI7420 CardBus Controller
02:04.2 FireWire (IEEE 1394): Texas Instruments PCI7x20 1394a-2000 OHCI Two-Port PHY/Link-Layer Controller
02:04.3 Mass storage controller: Texas Instruments PCI7420/PCI7620 Dual Socket CardBus and Smart Card Cont. w/ 1394a-2000 OHCI Two-Port  PHY/Link-Layer Cont. an02:08.0 Ethernet controller: Intel Corporation 82801DB PRO/100 VE (MOB) Ethernet Controller (rev 83)
02:0b.0 Network controller: Intel Corporation PRO/Wireless 2200BG (rev 05)