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Message #160041
[Bug 1541247] Re: Zooms image on TV horizontally so that the bottom part of framebuffer does not fit in display
** Description changed:
$ xrandr --verbose --fb 1067x600 --output TV1 --set mode PAL --mode 800x600 --rate 50.00 --scale-from 1067x600 --output LVDS1 --mode 640x480 --pos 0x0 --panning 1067x600+0+0/1067x600+0+0
scaling TV1 by 1.333750x1.000000
scaling TV1 by 1.333750x1.000000
crtc 0: disable
crtc 0: 800x600 50.00 +0+0 "TV1"
crtc 1: 640x480 59.94 +0+0 "LVDS1
Expected result: the whole framebuffer fits on TV1.
Actual result: Image is zoomed vertically, and, low part of framebuffer is cut. Horizontally ok.
+
+ However, sometimes this works fine, at least, if I set
+ --set 'top margin' 15 --set 'left margin' 40 --set 'bottom margin' 25 --set 'right margin' 40
+ for output TV1. And then the following workaround does not work.
Workaround:
$ xrandr --verbose --fb 1067x600 --output TV1 --set mode PAL --mode 800x600 --rate 50.00 --scale-from 1067x720 --output LVDS1 --mode 640x480 --pos 0x0 --panning 1067x600+0+0/1067x600+0+0
scaling TV1 by 1.333750x1.200000
scaling TV1 by 1.333750x1.200000
xrandr: specified screen 1067x600 not large enough for output TV1 (1067x720+0+0)
crtc 0: 800x600 50.00 +0+0 "TV1"
crtc 1: 640x480 59.94 +0+0 "LVDS1
$ lspci -v|grep -A 15 VGA
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device 3801
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at d0200000 (32-bit, non-prefetchable) [size=512K]
I/O ports at 1800 [size=8]
Memory at c0000000 (32-bit, prefetchable) [size=256M]
Memory at d0300000 (32-bit, non-prefetchable) [size=256K]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
Subsystem: Lenovo Device 3801
Flags: bus master, fast devsel, latency 0
Memory at d0280000 (32-bit, non-prefetchable) [size=512K]
Capabilities: <access denied>
Physical aspect ratio of TV is 16:9.
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: x11-xserver-utils 7.7+4ubuntu1
ProcVersionSignature: Ubuntu 4.2.0-27.32-generic 4.2.8-ckt1
Uname: Linux 4.2.0-27-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CurrentDesktop: XFCE
Date: Wed Feb 3 09:46:28 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-01-24 (9 days ago)
InstallationMedia: Xubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: x11-xserver-utils
UpgradeStatus: No upgrade log present (probably fresh install)
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https://bugs.launchpad.net/bugs/1541247
Title:
Zooms image on TV horizontally so that the bottom part of framebuffer
does not fit in display
Status in x11-xserver-utils package in Ubuntu:
New
Bug description:
$ xrandr --verbose --fb 1067x600 --output TV1 --set mode PAL --mode 800x600 --rate 50.00 --scale-from 1067x600 --output LVDS1 --mode 640x480 --pos 0x0 --panning 1067x600+0+0/1067x600+0+0
scaling TV1 by 1.333750x1.000000
scaling TV1 by 1.333750x1.000000
crtc 0: disable
crtc 0: 800x600 50.00 +0+0 "TV1"
crtc 1: 640x480 59.94 +0+0 "LVDS1
Expected result: the whole framebuffer fits on TV1.
Actual result: Image is zoomed vertically, and, low part of framebuffer is cut. Horizontally ok.
However, sometimes this works fine, at least, if I set
--set 'top margin' 15 --set 'left margin' 40 --set 'bottom margin' 25 --set 'right margin' 40
for output TV1. And then the following workaround does not work.
Workaround:
$ xrandr --verbose --fb 1067x600 --output TV1 --set mode PAL --mode 800x600 --rate 50.00 --scale-from 1067x720 --output LVDS1 --mode 640x480 --pos 0x0 --panning 1067x600+0+0/1067x600+0+0
scaling TV1 by 1.333750x1.200000
scaling TV1 by 1.333750x1.200000
xrandr: specified screen 1067x600 not large enough for output TV1 (1067x720+0+0)
crtc 0: 800x600 50.00 +0+0 "TV1"
crtc 1: 640x480 59.94 +0+0 "LVDS1
$ lspci -v|grep -A 15 VGA
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device 3801
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at d0200000 (32-bit, non-prefetchable) [size=512K]
I/O ports at 1800 [size=8]
Memory at c0000000 (32-bit, prefetchable) [size=256M]
Memory at d0300000 (32-bit, non-prefetchable) [size=256K]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
Subsystem: Lenovo Device 3801
Flags: bus master, fast devsel, latency 0
Memory at d0280000 (32-bit, non-prefetchable) [size=512K]
Capabilities: <access denied>
Physical aspect ratio of TV is 16:9.
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: x11-xserver-utils 7.7+4ubuntu1
ProcVersionSignature: Ubuntu 4.2.0-27.32-generic 4.2.8-ckt1
Uname: Linux 4.2.0-27-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CurrentDesktop: XFCE
Date: Wed Feb 3 09:46:28 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-01-24 (9 days ago)
InstallationMedia: Xubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: x11-xserver-utils
UpgradeStatus: No upgrade log present (probably fresh install)
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References
