I have just bought Lenovo Z570 and installed ubuntu 11.10 on it. I normally work on the machine with a distance of almost 1.5 feet but I can see vertical bars all over the screen. I have shown my laptop to friends but they couldn't notice the bars. I on the other hand cannot un-see them even though the pixel bars are small.
My resolution is set to 1366x768.
lshw returns following:
*-display description: VGA compatible controller product: 2nd Generation Core Processor Family Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:42 memory:d0000000-d03fffff memory:c0000000-cfffffff ioport:3000(size=64)
I was thinking if its a driver problem because I saw a similar machine on display running windows and I found its display just fine. That machine had however, following device:
Name: AMD Radeon(TM) HD 6620G Chipset Type: ATI display adapter Approx. Total Memory: 3046 MB Display mode: 1366x768 (32-bit) (60/Hz)
I guess my display device is Intel based. Any idea if the problem can be solved or should I return my laptop?