Comment 84 for bug 814325

I am also affected by this (or at least a very similar) bug on a Sony VAIO VPCEA laptop on kernel 3.0.0-14-generic (oneiric).

After the display blanks (e.g. if `xset s blank` is set), the laptop display is corrupted (pink and white vertical stripes) after resuming. An externally connected monitor turns back on correctly.

I can manually trigger by running `sleep 1 && xset dpms force off`
Running `xset dpms force off` (without the sleep) causes the display to cycle off and back on quickly, upon which it recovers correctly.

lspci lists the video card as:
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02)

lshw says:

 *-cpu
       description: CPU
       product: Intel(R) Core(TM) i5 CPU M 450 @ 2.40GHz
       vendor: Intel Corp.
       physical id: 4
       bus info: cpu@0
       version: Intel(R) Core(TM) i5 CPU M 450 @ 2.40GHz
       serial: N/A
       slot: N/A
       size: 1199MHz
       capacity: 1199MHz
       width: 64 bits
       clock: 133MHz
       capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm ida arat tpr_shadow vnmi flexpriority ept vpid cpufreq

  *-display
       description: VGA compatible controller
       product: Core Processor Integrated Graphics Controller
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 02
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:42 memory:f0000000-f03fffff memory:e0000000-efffffff ioport:e080(size=8)