Resolution not right with Intel 845GL graphics
Hi,
I am running Fedora Core 1 with the 2.4.22-1.2129.nptl kernel on my Dell Inspiron 1100 laptop. The built in graphics is the Intel 845GL. X fails to start if I set the default depth in the XF86Config file to 24 bit. If I set it to 16 the resolution displayed is 640x480. If I set the default depth to 8 then the resolution is 1024x768. I know for a fact that the monitor and graphics support 1024x768 at 32 bit. In my bios it says there is 1MB of video memory. What do I have to do to get my graphics at 1024x768 at 24 bit? Thanks in advance. Here is part of my XF86Config file: Section "Monitor" Identifier "Monitor()" VendorName "Monitor Vendor" ModelName "Dell 1024x768 Laptop Display Panel" HorizSync 31.5 - 48.5 VertRefresh 59.0 - 75.0 Option "dpms" EndSection Section "Device" Identifier "Videocard()" Driver "i810" VendorName "Videocard vendor" BoardName "Intel 845" VideoRam 16834 #I added this in an attempt to fix it but the result is the same EndSection Section "Screen" Identifier "Screen()" Device "Videocard()" Monitor "Monitor()" DefaultDepth 8 SubSection "Display" Depth 24 Modes "1024x768" "800x600" "640x480" EndSubSection SubSection "Display" Depth 16 Modes "1024x768" "800x600" "640x480" EndSubSection SubSection "Display" Depth 8 Modes "1024x768" "800x600" "640x480" EndSubSection EndSection Section "DRI" Group 0 Mode 0666 EndSection |
P.S. I've also tried the Vesa driver, which also didn't work.
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I installed Suse 9.0 (and 8.1 too), and have exactly same problem on my IBM NetVista 8307-41G with 845 chipest (Intel Pentium 4 2.4GHz (512KB), 256MB, PCI Microtower (4x5), Intel Extreme Graphics). Works only on 640x480 @ 16 bits, and there is no way to get 800 or 1024 @ 16 or 24 bit. I'm using IBM LCD ThinkVision L150.
So maybe someone get any solution? |
Any solution yet? I'm also having this problem. I have a Dell Dimension 2350 with that chipset. I've tried absolutely everything and can't get it out of 640x480. However, in Knoppix, it works fine at that resolution.
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In another tread in this forum i found solution. Just install 845 patch (not oficial), and it change your video memory from 1 MB to 10 MB.
One of tread is there, but there is another one, just can't find. Try to search. http://www.linuxquestions.org/questi...light=845patch |
<<<<COPY PAST>>>>>>>>>>>.
Dell use Intel's North Bridge the 82845G with integrated graphics and share system memory. The 82845 has a faster draw rate then the 82830G and the i810. But there are a few changes in the chip for example no over plane. The main difference to users is they changed the memory allocation. So as ac_dispatcher nicely provided the link u will have to run a patch called the 845patch. This will allocate memory to the graphics and enable full screen. here is the link http://geocities.com/randomnumberge...845patch.tar.gz BUT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Xfree86 driver i810 is very pore performer and is probably at worst with the 845G. If U can afford $69 US go here www.xig.com They have a driver for the intel series with almost a 10 fold performance increase. I went from about 1 frame every few seconds to full game speed with Quake 3. Xig benchmarked it from 80,000 char/sec to 600,000. Also supports dual head. |
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