the laptop i have has a full hd screen. i'll get the vbeinfo info but for
now here is some further info :
xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
LVDS-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis)
408mm x 230mm
1920x1080 60.0*+ 60.0
1680x1050 60.0
1400x1050 60.0
1280x1024 59.9
1280x960 59.9
1152x864 60.0
1024x768 59.9
800x600 59.9
640x480 59.4
720x400 59.6
640x400 60.0
640x350 59.8
VGA-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
cat
/sys/devices/pci0000:00/0000:00:03.0/0000:01:00.0/drm/card0/card0-LVDS-1/edid
| edid-decode
Extracted contents:
header: 00 ff ff ff ff ff ff 00
serial number: 0d af 00 18 00 00 00 00 28 12
version: 01 03
basic params: 80 29 17 78 0a
chroma info: cc b5 a7 54 45 97 26 16 50 54
established: 00 00 00
standard: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01
descriptor 1: 29 36 80 a0 70 38 1f 40 30 20 35 00 98 e6 10 00 00 18
descriptor 2: 00 00 00 fe 00 4e 31 38 34 48 34 2d 4c 30 31 0a 20 20
descriptor 3: 00 00 00 fe 00 43 4d 4f 0a 20 20 20 20 20 20 20 20 20
descriptor 4: 00 00 00 fe 00 4e 31 38 34 48 34 2d 4c 30 31 0a 20 20
extensions: 00
checksum: a0
Manufacturer: CMO Model 1800 Serial Number 0
Made week 40 of 2008
EDID version: 1.3
Digital display
Maximum image size: 41 cm x 23 cm
Gamma: 2.20
Supported color formats: RGB 4:4:4, YCrCb 4:2:2
First detailed timing is preferred timing
Established timings supported:
Standard timings supported:
Detailed mode: Clock 138.650 MHz, 408 mm x 230 mm
1920 1968 2000 2080 hborder 0
1080 1083 1088 1111 vborder 0
-hsync -vsync
ASCII string: N184H4-L01
ASCII string: CMO
ASCII string: N184H4-L01
Checksum: 0xa0
EDID block does NOT conform to EDID 1.3!
Missing name descriptor
Missing monitor ranges
this is a fedora 18 system with the following grub package installed :
grub2-2.00-15.fc18.x86_64
On Fri, Mar 15, 2013 at 11:47 PM, Jordan Uggla <[email protected]>wrote:
> On Fri, Mar 15, 2013 at 2:57 PM, Carrot Cruncher
> <[email protected]> wrote:
> > hi. can i ask how the resolution used is calculated when setting the
> gfxmode
> > setting to auto in grub2. i have a laptop where vbeinfo shows the highest
>
> In grub 2.00 I believe that what is used is the highest resolution
> supported by VBE (or GOP,UGA, or whatever interface is available) that
> is *also* supported by your monitor, as reported in the monitor's EDID
> information.
>
> > resolution as being 1920x1080x32 but this isn't what is being used.
> without
>
> Does your monitor support this resolution?
>
> > hardcoding the resolution, is there a way to configure grub2 to use the
> > highest resolution detected? thanks.
>
> Well clearly that is what should already happen when gfxmode=auto, so
> we need to figure out why that apparently isn't happening for you,
> then go from there.
>
> What version of grub are you using?
> Could you post the full output of "videoinfo" from the grub shell,
> either via a picture from a camera, serial log, or (if you're really
> ambitious) typing it out manually?
>
> --
> Jordan Uggla (Jordan_U on irc.freenode.net)
>
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