On Mon, Sep 14, 2009 at 05:46:30AM +0200, Jesus Sanchez wrote: > Nick Holland escribis: > >Jesus Sanchez wrote: > >>Hi, using 4.5 stable. > >> > >>I'm doing some tests with the VESA driver on a HP nx9030 (a laptop) and > >>I noticed a little flicker on the screen when I'm using the VESA > >>driver so I wanted to see the refresh rate the computer is sending to > >>the LCD screen and xrandr reported: > >>1024 x 768 0.0 > > > >not overly suprising, the VESA driver is about getting dots on the screen, > >not tweaking every register in the graphics chip. I also don't know that > >it is supporting xrandr. > > > >>while with the "intel" driver for the card xrandr reported > >>1024 x 768 60.0 > >> > >>Is there anyway to see the refresh rate the LCD screen is recieving? > >>It's a laptop so it don't have any control panel or buttons to interact > >>directly with the LCD screen. > > > >it doesn't need them, either. normally, the video chip will interface > >directly to the LCD, it won't be doing multiple conversions that all > >the control panel buttons are there to help with. > > > >LCD screens don't "refresh" in a way that is directly comparable to CRTs. > >Any numbers you see reflect the the data rate between the CRTC and the LCD > >hardware, not how data is displayed on the LCD...and on a laptop, even > >that is probably mostly fiction. > > > >If you are seeing flicker on the LCD screen, it is something OTHER than > >the CRTC's refresh rate... unfortunately, some of them could be hardware > > no, it's not a hardware problem, as I said before, this flicker only > happens when I'm using "vesa" as driver.
so if the intel driver works, don't use vesa... -0- -- Never settle with words what you can accomplish with a flame thrower.
