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[bug #54511] grub2.02 fails to start VBE videomodes on Intel Atom Z36xxx
From: |
Nikolai |
Subject: |
[bug #54511] grub2.02 fails to start VBE videomodes on Intel Atom Z36xxx/Z37xxx Series Graphics & Display in CSM mode |
Date: |
Tue, 14 Aug 2018 03:19:03 -0400 (EDT) |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0 |
URL:
<http://savannah.gnu.org/bugs/?54511>
Summary: grub2.02 fails to start VBE videomodes on Intel Atom
Z36xxx/Z37xxx Series Graphics & Display in CSM mode
Project: GNU GRUB
Submitted by: nickel
Submitted on: Tue 14 Aug 2018 07:19:02 AM UTC
Category: User Interface
Severity: Major
Priority: 5 - Normal
Item Group: Hardware-specific
Status: None
Privacy: Public
Assigned to: None
Originator Name: Nikolai
Originator Email: address@hidden
Open/Closed: Open
Discussion Lock: Any
Release:
Release: 2.02
Reproducibility: Every Time
Planned Release: None
_______________________________________________________
Details:
Nettop PC based on Intel Celeron J1800 CPU provides CSM (compatibility support
mode).
GRUB 2.02 VBE video driver module fails to init any resolution videomode
(800x600 in particular) in above mentioned mode.
VGA module falls back to 640x480x8, and background picture is poorly
displayed.
Only videotest 640x480 shows test picture when only VGA module loaded.
In the same time extlinux boot loader starts VBE mode properly (please refer
to attached pictures).
Issue may be similar to earlier reported bug #50911
<https://savannah.gnu.org/bugs/index.php?50911>
lspci output for VGA adapter:
00:02.0 VGA compatible controller: Intel Corporation Atom Processor
Z36xxx/Z37xxx Series Graphics & Display (rev 0e)
xrandr output:
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
VGA-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y
axis) 521mm x 293mm
1920x1080 60.00*+
1680x1050 59.95
1280x1024 75.02 60.02
1440x900 59.89
1280x960 60.00
1280x720 60.00
1024x768 75.03 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
640x480 75.00 72.81 66.67 59.94
720x400 70.08
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)
_______________________________________________________
File Attachments:
-------------------------------------------------------
Date: Tue 14 Aug 2018 07:19:02 AM UTC Name: cpuinfo_output Size: 2KiB By:
nickel
<http://savannah.gnu.org/bugs/download.php?file_id=44777>
-------------------------------------------------------
Date: Tue 14 Aug 2018 07:19:02 AM UTC Name: grub-2.02-menu.jpg Size: 96KiB
By: nickel
<http://savannah.gnu.org/bugs/download.php?file_id=44778>
-------------------------------------------------------
Date: Tue 14 Aug 2018 07:19:02 AM UTC Name: extlinux-menu.jpg Size: 96KiB
By: nickel
<http://savannah.gnu.org/bugs/download.php?file_id=44779>
-------------------------------------------------------
Date: Tue 14 Aug 2018 07:19:02 AM UTC Name: gfxmode_800x600.jpg Size: 138KiB
By: nickel
<http://savannah.gnu.org/bugs/download.php?file_id=44780>
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?54511>
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