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I tried setting the resolution 1280x1024 60hz unsuccessfully in Debian Jessie (AlienDeb)

I use the config /boot/firmware/config.txt:

hdmi_ignore_edid=0xa5000080
hdmi_drive=2 
hdmi_group=2 
hdmi_mode=35
hdmi_force_hotplug=1 
config_hdmi_boost=4 
disable_overscan=1

Screen Monitor

But the screen does not seem to work. Someone can help me?

  • And you are sure the display can accept this mode? What other modes have you tried? Do they all not work, or just this one? – goldilocks Mar 29 '15 at 17:58
  • What do you get if you run the following commands? tvservice -d edit.out then edidparser edid.out to parse the output – HeatfanJohn Mar 29 '15 at 20:58
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For me to set raspberry_pi raspbian(jessie) video resolution as 1280x1024, from 655x500(some very large and disturbing display resolution) I have made following changes in my /boot/config.txt file.

PS : These are the only values in my /boot/config.txt

disable_overscan=1

hdmi_ignore_edid=0xa50000080
hdmi_force_hotplug=1
config_hdmi_boost=4
hdmi_group=2
hdmi_mode=36

Using following commands we can get the available hdmi_mode, and I have picked up the one I needed.

tvservice -m CEA
tvservice -m DMT

Attached screenshots of two display:

Before changing in default configuration (hdmi_mode=4) my display was as below:

655x555 resolution

After changing the configurations as per above it turned up like as below:

1280x1024 resolution

Its a late reply, but still hope these info might help someone.

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