[Openchrome-users] [openChrome] #177: Bad video ram size detection on some KM400

[OpenChrome Trac]

#177: Bad video ram size detection on some KM400
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 Reporter:  anonymous                                |        Owner:  schlobinux    
     Type:  defect                                   |       Status:  assigned      
 Priority:  major                                    |    Component:  initialization
  Version:  0.2.902                                  |   Resolution:                
 Keywords:  VT8378 S3 UniChrome insufficient memory  |     Blocking:                
Blockedby:                                           |  
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Comment(by wITTus):

 Hello developers!

 The same problem occurs here with my '''P4M800-M'''. OpenChrome version
 '''0.2.903'''.
 Reported memory is 1024 KB, so only a maximum resolution of 800x600 is
 possible. Well, the ''VideoRAM'' setting doesn't work for me (don't ask me
 why). I tried further to track down the error and found out that:

 {{{
 pci_device_cfg_read_u8(bridge, &videoRam, 0xE1);
 }}}

 fills ''videoRam'' with zero. So I wrote a quick patch to default to 32MB
 when this happens. I really know absolutely nothing (yet) about driver
 programming, but let me know if I can help somehow!

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Ticket URL: <http://www.openchrome.org/trac/ticket/177#comment:4>
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