800 X 600에서 해상도를 올리 수가 없어요

저는 유분투에 초보자 입니다.

저는 SIGMA Pro II라는 VGA CARD을 사용있습니다.
유분투에서 해상도를 올리기 위해 각종 유사한 방법을
여기 사이트에서 찾아 실행 해 보았지만

매번 ROOT 개정이나 SELunix 개정을 여기 유분투에서 요구 합니다.
혹시 제가 변종 유분투을 사용하고 있는지요?
아니면 잘 못하나?
원도우하고 는 다르군요!!

제가 수정하고자 하는 파일은
시스템파일에 있는 /etc/X11/에 있는 Xorg.conf파일입니다.
여기에서는 제가 이파일을 저장할 시
SELunix이라는 개정을 요구합니다.
적절한 방법이 무엇이 있을까요?
고수님들 부탁드립니다.

이것은 제가 로그할시 로그파일의 일부분입니다.

(--) Chipset NVIDIA GPU found
(II) resource ranges after xf86ClaimFixedResources() call:
[0] -1 0 0x00100000 - 0x3fffffff (0x3ff00000) MX[B]E(B)
[1] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B]
[2] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B]
[3] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B]
[4] -1 0 0xdc000000 - 0xdc0000ff (0x100) MX[B]
[5] -1 0 0xd0000000 - 0xcfffffff (0x0) MX[B]O
[6] -1 0 0xd8000000 - 0xd9ffffff (0x2000000) MX[B](B)
[7] -1 0 0xda000000 - 0xdaffffff (0x1000000) MX[B](B)
[8] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[9] -1 0 0x00000000 - 0x000000ff (0x100) IX[B]
[10] -1 0 0x0000c000 - 0x0000c0ff (0x100) IX[B]
[11] -1 0 0x0000e000 - 0x0000e03f (0x40) IX[B]
[12] -1 0 0x0000dc00 - 0x0000dcff (0x100) IX[B]
[13] -1 0 0x0000d800 - 0x0000d81f (0x20) IX[B]
[14] -1 0 0x00000500 - 0x0000050f (0x10) IX[B]
[15] -1 0 0x0000d000 - 0x0000d01f (0x20) IX[B]
[16] -1 0 0x0000f000 - 0x0000f00f (0x10) IX[B]
(II) resource ranges after probing:
[0] -1 0 0x00100000 - 0x3fffffff (0x3ff00000) MX[B]E(B)
[1] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B]
[2] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B]
[3] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B]
[4] -1 0 0xdc000000 - 0xdc0000ff (0x100) MX[B]
[5] -1 0 0xd0000000 - 0xcfffffff (0x0) MX[B]O
[6] -1 0 0xd8000000 - 0xd9ffffff (0x2000000) MX[B](B)
[7] -1 0 0xda000000 - 0xdaffffff (0x1000000) MX[B](B)
[8] 0 0 0x000a0000 - 0x000affff (0x10000) MS[B]
[9] 0 0 0x000b0000 - 0x000b7fff (0x8000) MS[B]
[10] 0 0 0x000b8000 - 0x000bffff (0x8000) MS[B]
[11] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[12] -1 0 0x00000000 - 0x000000ff (0x100) IX[B]
[13] -1 0 0x0000c000 - 0x0000c0ff (0x100) IX[B]
[14] -1 0 0x0000e000 - 0x0000e03f (0x40) IX[B]
[15] -1 0 0x0000dc00 - 0x0000dcff (0x100) IX[B]
[16] -1 0 0x0000d800 - 0x0000d81f (0x20) IX[B]
[17] -1 0 0x00000500 - 0x0000050f (0x10) IX[B]
[18] -1 0 0x0000d000 - 0x0000d01f (0x20) IX[B]
[19] -1 0 0x0000f000 - 0x0000f00f (0x10) IX[B]
[20] 0 0 0x000003b0 - 0x000003bb (0xc) IS[B]
[21] 0 0 0x000003c0 - 0x000003df (0x20) IS[B]
(II) Setting vga for screen 0.
(II) NVIDIA(0): Creating default Display subsection in Screen section
"Default Screen" for depth/fbbpp 24/32
(**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
(==) NVIDIA(0): RGB weight 888
(==) NVIDIA(0): Default visual is TrueColor
(==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
(**) NVIDIA(0): Option "NoLogo" "True"
(**) NVIDIA(0): Option "UseEdidFreqs" "True"
(**) NVIDIA(0): Option "AllowGLXWithComposite" "True"
(--) NVIDIA(0): Linear framebuffer at 0xD8000000
(--) NVIDIA(0): MMIO registers at 0xDA000000
(II) NVIDIA(0): NVIDIA GPU detected as: RIVA TNT2/TNT2 Pro
(--) NVIDIA(0): VideoBIOS: 02.05.17.03.00
(--) NVIDIA(0): Interlaced video modes are supported on this GPU
(II) NVIDIA(0): Detected AGP rate: 4X
(--) NVIDIA(0): VideoRAM: 32768 kBytes
(II) NVIDIA(0): Connected display device(s):
(WW) NVIDIA(0): No connected display devices detected; assuming 1 CRT
(--) NVIDIA(0): Display device CRT-0: maximum pixel clock at 8 bpp: 250 MHz
(--) NVIDIA(0): Display device CRT-0: maximum pixel clock at 16 bpp: 250 MHz
(--) NVIDIA(0): Display device CRT-0: maximum pixel clock at 32 bpp: 215 MHz
(II) Loading sub module "ddc"
(II) LoadModule: "ddc"(II) Module "ddc" already built-in
(WW) NVIDIA(0): Failure reading EDID parameters for display device CRT-0
(WW) NVIDIA(0): Unable to use EDID frequencies for display device CRT-0 (no
(WW) NVIDIA(0): EDID found)
(II) NVIDIA(0): Configured Monitor: Using default hsync range of 31.50-37.90 kHz
(II) NVIDIA(0): Configured Monitor: Using default vrefresh range of 50.00-70.00 Hz
(WW) NVIDIA(0): Unable to estimate virtual size
(II) NVIDIA(0): Clock range: 12.00 to 215.00 MHz
(II) NVIDIA(0): Not using default mode "640x350" (vrefresh out of range)
(II) NVIDIA(0): Not using default mode "320x175" (vrefresh out of range)
(II) NVIDIA(0): Not using default mode "640x400" (vrefresh out of range)
(II) NVIDIA(0): Not using default mode "320x200" (vrefresh out of range)
(II) NVIDIA(0): Not using default mode "720x400" (vrefresh out of range)
(II) NVIDIA(0): Not using default mode "360x200" (vrefresh out of range)
(II) NVIDIA(0): Not using default mode "640x480" (vrefresh out of range)
(II) NVIDIA(0): Not using default mode "320x240" (vrefresh out of range)
(II) NVIDIA(0): Not using default mode "640x480" (vrefresh out of range)
(II) NVIDIA(0): Not using default mode "320x240" (vrefresh out of range)
(II) NVIDIA(0): Not using default mode "640x480" (hsync out of range)
(II) NVIDIA(0): Not using default mode "320x240" (hsync out of range)
(II) NVIDIA(0): Not using default mode "800x600" (hsync out of range)
(II) NVIDIA(0): Not using default mode "400x300" (hsync out of range)
(II) NVIDIA(0): Not using default mode "800x600" (hsync out of range)
(II) NVIDIA(0): Not using default mode "400x300" (hsync out of range)
(II) NVIDIA(0): Not using default mode "800x600" (hsync out of range)
(II) NVIDIA(0): Not using default mode "400x300" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1024x768" (vrefresh out of range)
(II) NVIDIA(0): Not using default mode "512x384" (vrefresh out of range)
(II) NVIDIA(0): Not using default mode "1024x768" (hsync out of range)
(II) NVIDIA(0): Not using default mode "512x384" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1024x768" (hsync out of range)
(II) NVIDIA(0): Not using default mode "512x384" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1024x768" (hsync out of range)
(II) NVIDIA(0): Not using default mode "512x384" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1024x768" (hsync out of range)
(II) NVIDIA(0): Not using default mode "512x384" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1152x864" (hsync out of range)
(II) NVIDIA(0): Not using default mode "576x432" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1280x960" (hsync out of range)
(II) NVIDIA(0): Not using default mode "640x480" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1280x960" (hsync out of range)
(II) NVIDIA(0): Not using default mode "640x480" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1280x1024" (hsync out of range)
(II) NVIDIA(0): Not using default mode "640x512" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1280x1024" (hsync out of range)
(II) NVIDIA(0): Not using default mode "640x512" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1280x1024" (hsync out of range)
(II) NVIDIA(0): Not using default mode "640x512" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1600x1200" (hsync out of range)
(II) NVIDIA(0): Not using default mode "800x600" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1600x1200" (hsync out of range)
(II) NVIDIA(0): Not using default mode "800x600" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1600x1200" (hsync out of range)
(II) NVIDIA(0): Not using default mode "800x600" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1600x1200" (hsync out of range)
(II) NVIDIA(0): Not using default mode "800x600" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1600x1200" (hsync out of range)
(II) NVIDIA(0): Not using default mode "800x600" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1792x1344" (hsync out of range)
(II) NVIDIA(0): Not using default mode "896x672" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1792x1344" (hsync out of range)
(II) NVIDIA(0): Not using default mode "896x672" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1856x1392" (hsync out of range)
(II) NVIDIA(0): Not using default mode "928x696" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1856x1392" (hsync out of range)
(II) NVIDIA(0): Not using default mode "928x696" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1920x1440" (hsync out of range)
(II) NVIDIA(0): Not using default mode "960x720" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1920x1440" (hsync out of range)
(II) NVIDIA(0): Not using default mode "960x720" (hsync out of range)
(II) NVIDIA(0): Not using default mode "832x624" (hsync out of range)
(II) NVIDIA(0): Not using default mode "416x312" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1280x768" (hsync out of range)
(II) NVIDIA(0): Not using default mode "640x384" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1280x800" (hsync out of range)
(II) NVIDIA(0): Not using default mode "640x400" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1152x768" (hsync out of range)
(II) NVIDIA(0): Not using default mode "576x384" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1152x864" (hsync out of range)
(II) NVIDIA(0): Not using default mode "576x432" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1400x1050" (hsync out of range)
(II) NVIDIA(0): Not using default mode "700x525" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1400x1050" (hsync out of range)
(II) NVIDIA(0): Not using default mode "700x525" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1400x1050" (hsync out of range)
(II) NVIDIA(0): Not using default mode "700x525" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1400x1050" (hsync out of range)
(II) NVIDIA(0): Not using default mode "700x525" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1440x900" (hsync out of range)
(II) NVIDIA(0): Not using default mode "720x450" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1600x1024" (hsync out of range)
(II) NVIDIA(0): Not using default mode "800x512" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1680x1050" (hsync out of range)
(II) NVIDIA(0): Not using default mode "840x525" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1920x1200" (hsync out of range)
(II) NVIDIA(0): Not using default mode "960x600" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1920x1200" (hsync out of range)
(II) NVIDIA(0): Not using default mode "960x600" (hsync out of range)
(II) NVIDIA(0): Not using default mode "1920x1440" (hsync out of range)
(II) NVIDIA(0): Not using default mode "960x720" (hsync out of range)
(II) NVIDIA(0): Not using default mode "2048x1536" (width requires unsupported line pitch)
(II) NVIDIA(0): Not using default mode "1024x768" (hsync out of range)
(II) NVIDIA(0): Not using default mode "2048x1536" (width requires unsupported line pitch)
(II) NVIDIA(0): Not using default mode "1024x768" (hsync out of range)
(II) NVIDIA(0): Not using default mode "2048x1536" (width requires unsupported line pitch)
(II) NVIDIA(0): Not using default mode "1024x768" (hsync out of range)
(**) NVIDIA(0): Validated modes for display device CRT-0:
(**) NVIDIA(0): Default mode "800x600": 40.0 MHz, 37.9 kHz, 60.3 Hz
(**) NVIDIA(0): Default mode "800x600": 36.0 MHz, 35.2 kHz, 56.2 Hz
(**) NVIDIA(0): Default mode "640x480": 25.2 MHz, 31.5 kHz, 59.9 Hz
(**) NVIDIA(0): Default mode "400x300": 20.0 MHz, 37.9 kHz, 60.3 Hz (D)
(**) NVIDIA(0): Default mode "400x300": 18.0 MHz, 35.2 kHz, 56.3 Hz (D)
(**) NVIDIA(0): Default mode "320x240": 12.6 MHz, 31.5 kHz, 60.1 Hz (D)
(II) NVIDIA(0): Virtual screen size determined to be 800 x 600
(==) NVIDIA(0): DPI set to (96, 96)
(II) Loading sub module "fb"
(II) LoadModule: "fb"
(II) Loading /usr/lib/xorg/modules//libfb.so
(II) Module fb: vendor="X.Org Foundation"
compiled for 1.4.0.90, module version = 1.0.0
ABI class: X.Org ANSI C Emulation, version 0.3
(II) Loading sub module "ramdac"
(II) LoadModule: "ramdac"(II) Module "ramdac" already built-in
(II) Loading sub module "xaa"
(II) LoadModule: "xaa"
(II) Loading /usr/lib/xorg/modules//libxaa.so
(II) Module xaa: vendor="X.Org Foundation"
compiled for 1.4.0.90, module version = 1.2.0
ABI class: X.Org Video Driver, version 2.0
(--) Depth 24 pixmap format is 32 bpp
(II) do I need RAC? No, I don't.
(II) resource ranges after preInit:
[0] 0 0 0xd8000000 - 0xd9ffffff (0x2000000) MX[B]
[1] 0 0 0xda000000 - 0xdaffffff (0x1000000) MX[B]
[2] -1 0 0x00100000 - 0x3fffffff (0x3ff00000) MX[B]E(B)
[3] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B]
[4] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B]
[5] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B]
[6] -1 0 0xdc000000 - 0xdc0000ff (0x100) MX[B]
[7] -1 0 0xd0000000 - 0xcfffffff (0x0) MX[B]O
[8] -1 0 0xd8000000 - 0xd9ffffff (0x2000000) MX[B](B)
[9] -1 0 0xda000000 - 0xdaffffff (0x1000000) MX[B](B)
[10] 0 0 0x000a0000 - 0x000affff (0x10000) MS[B](OprD)
[11] 0 0 0x000b0000 - 0x000b7fff (0x8000) MS[B](OprD)
[12] 0 0 0x000b8000 - 0x000bffff (0x8000) MS[B](OprD)
[13] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[14] -1 0 0x00000000 - 0x000000ff (0x100) IX[B]
[15] -1 0 0x0000c000 - 0x0000c0ff (0x100) IX[B]
[16] -1 0 0x0000e000 - 0x0000e03f (0x40) IX[B]
[17] -1 0 0x0000dc00 - 0x0000dcff (0x100) IX[B]
[18] -1 0 0x0000d800 - 0x0000d81f (0x20) IX[B]
[19] -1 0 0x00000500 - 0x0000050f (0x10) IX[B]
[20] -1 0 0x0000d000 - 0x0000d01f (0x20) IX[B]
[21] -1 0 0x0000f000 - 0x0000f00f (0x10) IX[B]
[22] 0 0 0x000003b0 - 0x000003bb (0xc) IS[B](OprU)
[23] 0 0 0x000003c0 - 0x000003df (0x20) IS[B](OprU)
(II) NVIDIA(0): Setting mode "800x600"
(II) Loading extension NV-GLX
(II) NVIDIA(0): NVIDIA 3D Acceleration Architecture Initialized
(II) NVIDIA(0): Using the NVIDIA 2D acceleration architecture
(==) NVIDIA(0): Backing store disabled
(==) NVIDIA(0): Silken mouse enabled
(II) NVIDIA(0): DPMS enabled
(II) Loading extension NV-CONTROL
(==) RandR enabled

두번째로 재가 알고 싶은것은
로그인 화면에서 ROOT 개정으로 들어가는 방법입니다.
설치시 root 개정에 대한 Fedoro와 다르게 요구하지 않은 것으로
알고있습니다.

어렵게 이리 저리 vi에디터로 conf파일들을 보고 있습니다.
아니면 FEDORO 돌아가야 할 실정인가요.

꼭 답변 부탁드립니다. 고수님들!!!!

수고하세요