On 2012-01-05 17:41:37 +0100, Vincent Lefevre wrote:
> No, downgrading *nouveau* and the X server to old versions doesn't
> make the problem disappear. However the problem disappeared after
> downgrading libx11* packages. I'll try to investigate more later.
After doing tests on another machine, this is not related to the
libx11* packages (in some cases, the problem doesn't occur, and it
might be the case here). I'm not even sure that this is a regression,
but in such a case, I don't know why I didn't notice it before. For
the moment, I've tried to downgrade packages as shown in attachment
(downgrade1), and the bug still occurs (after a reboot).
To reproduce the bug, I've attached a file "text", obtained from
xterm logging (md5sum: e522fe4b2a4e45e39761550e8a5426f7). The steps
are the following:
1. Type: xterm -geometry 80x60 -e 'sleep 10; cat text; sleep 999'
2. Put a smaller window covering the middle of the right part of
the xterm window.
3. Wait for the text (from "cat text").
In case this is due to the driver, I use the nouveau driver (both
machines have a NVIDIA card).
--
Vincent Lefèvre <vinc...@vinc17.net> - Web: <http://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / Arénaire project (LIP, ENS-Lyon)
[?1049h[?1h=
[H[2J[Hcurl(1) Curl Manual
curl(1)[m
[m
[1mNAME[m[m
curl - transfer a URL[m
[m
[1mSYNOPSIS[m[m
[1mcurl[m [1m[options][m [4m[URL...][24m[m
[m
[1mDESCRIPTION[m[m
[1mcurl[m is a tool to transfer data from or to a server, using one
of the[m
supported protocols (DICT, FILE, FTP, FTPS, GOPHER, HTTP, HTTPS,
IMAP,[m
IMAPS, LDAP, LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMTP,
SMTPS,[m
TELNET and TFTP). The command is designed to work without user
inter-[m
action.[m
[m
curl offers a busload of useful tricks like proxy support, user
authen-[m
tication, FTP upload, HTTP post, SSL connections, cookies, file
trans-[m
fer resume and more. As you will see below, the number of features
will[m
make your head spin![m
[m
curl is powered by libcurl for all transfer-related features.
See[m
[1mlibcurl[m(3) for details.[m
[m
[1mURL[m[m
The URL syntax is protocol-dependent. You'll find a detailed
descrip-[m
tion in RFC 3986.[m
[m
You can specify multiple URLs or parts of URLs by writing part
sets[m
within braces as in:[m
[m
http://site.{one,two,three}.com[m
[m
or you can get sequences of alphanumeric series by using [] as in:[m
[m
ftp://ftp.numericals.com/file[1-100].txt[m
ftp://ftp.numericals.com/file[001-100].txt (with leading zeros)[m
ftp://ftp.letters.com/file[a-z].txt[m
[m
Nested sequences are not supported, but you can use several ones
next[m
to each other:[m
[m
http://any.org/archive[1996-1999]/vol[1-4]/part{a,b,c}.html[m
[m
You can specify any amount of URLs on the command line. They will
be[m
fetched in a sequential manner in the specified order.[m
[m
You can specify a step counter for the ranges to get every Nth
number[m
or letter:[m
[m
http://www.numericals.com/file[1-100:10].txt[m
http://www.letters.com/file[a-z:2].txt[m
[m
If you specify URL without protocol:// prefix, curl will attempt
to[m
guess what protocol you might want. It will then default to HTTP
but[m
try other protocols based on often-used host name prefixes. For
exam-[m
ple, for host names starting with "ftp." curl will assume you want
to[m
speak FTP.[m
[m
curl will do its best to use what you pass to it as a URL. It is
not[m
[7m Manual page curl(1) line 1 (press h for help or q to quit)[27m[K
[K/[Khh[Ktt[Ktt[Kpp[Kss
[K[1;1Hcurl(1) Curl Manual
curl(1)[m
[2;1H[m
[3;1H[1mNAME[m[m
[4;1H curl - transfer a URL[m
[5;1H[m
[6;1H[1mSYNOPSIS[m[m
[7;1H [1mcurl[m [1m[options][m [4m[URL...][24m[m
[8;1H[m
[9;1H[1mDESCRIPTION[m[m
[10;1H [1mcurl[m is a tool to transfer data from or to a server,
using one of the[m
[11;1H supported protocols (DICT, FILE, FTP, FTPS, GOPHER, HTTP, HTTPS,
IMAP,[m
[12;1H IMAPS, LDAP, LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMTP,
SMTPS,[m
[13;1H TELNET and TFTP). The command is designed to work without user
inter-[m
[14;1H action.[m
[15;1H[m
[16;1H curl offers a busload of useful tricks like proxy support, user
authen-[m
[17;1H tication, FTP upload, HTTP post, SSL connections, cookies, file
trans-[m
[18;1H fer resume and more. As you will see below, the number of
features will[m
[19;1H make your head spin![m
[20;1H[m
[21;1H curl is powered by libcurl for all transfer-related
features. See[m
[22;1H [1mlibcurl[m(3) for details.[m
[23;1H[m
[24;1H[1mURL[m[m
[25;1H The URL syntax is protocol-dependent. You'll find a detailed
descrip-[m
[26;1H tion in RFC 3986.[m
[27;1H[m
[28;1H You can specify multiple URLs or parts of URLs by writing part
sets[m
[29;1H within braces as in:[m
[30;1H[m
[31;1H http://site.{one,two,three}.com[m
[32;1H[m
[33;1H or you can get sequences of alphanumeric series by using [] as
in:[m
[34;1H[m
[35;1H ftp://ftp.numericals.com/file[1-100].txt[m
[36;1H ftp://ftp.numericals.com/file[001-100].txt (with leading
zeros)[m
[37;1H ftp://ftp.letters.com/file[a-z].txt[m
[38;1H[m
[39;1H Nested sequences are not supported, but you can use several
ones next[m
[40;1H to each other:[m
[41;1H[m
[42;1H http://any.org/archive[1996-1999]/vol[1-4]/part{a,b,c}.html[m
[43;1H[m
[44;1H You can specify any amount of URLs on the command line. They
will be[m
[45;1H fetched in a sequential manner in the specified order.[m
[46;1H[m
[47;1H You can specify a step counter for the ranges to get every Nth
number[m
[48;1H or letter:[m
[49;1H[m
[50;1H http://www.numericals.com/file[1-100:10].txt[m
[51;1H http://www.letters.com/file[a-z:2].txt[m
[52;1H[m
[53;1H If you specify URL without protocol:// prefix, curl will
attempt to[m
[54;1H guess what protocol you might want. It will then default to
HTTP but[m
[55;1H try other protocols based on often-used host name prefixes. For
exam-[m
[56;1H ple, for host names starting with "ftp." curl will assume you
want to[m
[57;1H speak FTP.[m
[58;1H[m
[59;1H curl will do its best to use what you pass to it as a URL. It
is not[m
[60;1H[1;1Hcurl(1) Curl Manual
curl(1)[m
[2;1H[m
[3;1H[1mNAME[m[m
[4;1H curl - transfer a URL[m
[5;1H[m
[6;1H[1mSYNOPSIS[m[m
[7;1H [1mcurl[m [1m[options][m [4m[URL...][24m[m
[8;1H[m
[9;1H[1mDESCRIPTION[m[m
[10;1H [1mcurl[m is a tool to transfer data from or to a server,
using one of the[m
[11;1H supported protocols (DICT, FILE, FTP, FTPS, GOPHER, HTTP,
[7mHTTPS[27m, IMAP,[m
[12;1H IMAPS, LDAP, LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMTP,
SMTPS,[m
[13;1H TELNET and TFTP). The command is designed to work without user
inter-[m
[14;1H action.[m
[15;1H[m
[16;1H curl offers a busload of useful tricks like proxy support, user
authen-[m
[17;1H tication, FTP upload, HTTP post, SSL connections, cookies, file
trans-[m
[18;1H fer resume and more. As you will see below, the number of
features will[m
[19;1H make your head spin![m
[20;1H[m
[21;1H curl is powered by libcurl for all transfer-related
features. See[m
[22;1H [1mlibcurl[m(3) for details.[m
[23;1H[m
[24;1H[1mURL[m[m
[25;1H The URL syntax is protocol-dependent. You'll find a detailed
descrip-[m
[26;1H tion in RFC 3986.[m
[27;1H[m
[28;1H You can specify multiple URLs or parts of URLs by writing part
sets[m
[29;1H within braces as in:[m
[30;1H[m
[31;1H http://site.{one,two,three}.com[m
[32;1H[m
[33;1H or you can get sequences of alphanumeric series by using [] as
in:[m
[34;1H[m
[35;1H ftp://ftp.numericals.com/file[1-100].txt[m
[36;1H ftp://ftp.numericals.com/file[001-100].txt (with leading
zeros)[m
[37;1H ftp://ftp.letters.com/file[a-z].txt[m
[38;1H[m
[39;1H Nested sequences are not supported, but you can use several
ones next[m
[40;1H to each other:[m
[41;1H[m
[42;1H http://any.org/archive[1996-1999]/vol[1-4]/part{a,b,c}.html[m
[43;1H[m
[44;1H You can specify any amount of URLs on the command line. They
will be[m
[45;1H fetched in a sequential manner in the specified order.[m
[46;1H[m
[47;1H You can specify a step counter for the ranges to get every Nth
number[m
[48;1H or letter:[m
[49;1H[m
[50;1H http://www.numericals.com/file[1-100:10].txt[m
[51;1H http://www.letters.com/file[a-z:2].txt[m
[52;1H[m
[53;1H If you specify URL without protocol:// prefix, curl will
attempt to[m
[54;1H guess what protocol you might want. It will then default to
HTTP but[m
[55;1H try other protocols based on often-used host name prefixes. For
exam-[m
[56;1H ple, for host names starting with "ftp." curl will assume you
want to[m
[57;1H speak FTP.[m
[58;1H[m
[59;1H curl will do its best to use what you pass to it as a URL. It
is not[m
[60;1H trying to validate it as a syntactically correct URL by any
means but[m
is instead [1mvery[m liberal with what it accepts.[m
[m
Curl will attempt to re-use connections for multiple file transfers,
so[m
that getting many files from the same server will not do multiple
con-[m
nects / handshakes. This improves speed. Of course this is only done
on[m
files specified on a single command line and cannot be used
between[m
separate curl invokes.[m
[m
[1mPROGRESS[m [1mMETER[m[m
[7m Manual page curl(1) line 13 (press h for help or q to quit)[27m[K912,915c912,916
< ii libdrm-intel1 2.4.29-1
Userspace interface to intel-specific kernel DRM services -- runtime
< ii libdrm-nouveau1a 2.4.29-1
Userspace interface to nouveau-specific kernel DRM services -- runtime
< ii libdrm-radeon1 2.4.29-1
Userspace interface to radeon-specific kernel DRM services -- runtime
< ii libdrm2 2.4.29-1
Userspace interface to kernel DRM services -- runtime
---
> ii libdrm-dev 2.4.23-3
> Userspace interface to kernel DRM services -- development files
> ii libdrm-intel1 2.4.23-3
> Userspace interface to intel-specific kernel DRM services -- runtime
> ii libdrm-nouveau1a 2.4.23-3
> Userspace interface to nouveau-specific kernel DRM services -- runtime
> ii libdrm-radeon1 2.4.23-3
> Userspace interface to radeon-specific kernel DRM services -- runtime
> ii libdrm2 2.4.23-3
> Userspace interface to kernel DRM services -- runtime
929a931,933
> ii libegl1-mesa 7.10-4 A
> free implementation of the EGL API -- runtime
> ii libegl1-mesa-dev 7.10-4 A
> free implementation of the EGL API -- development files
> ii libegl1-mesa-drivers 7.10-4 A
> free implementation of the EGL API -- hardware drivers
1034,1036c1038,1040
< ii libgl1-mesa-dev 7.11.2-1
free implementation of the OpenGL API -- GLX development files
< ii libgl1-mesa-dri 7.11.2-1
free implementation of the OpenGL API -- DRI modules
< ii libgl1-mesa-glx 7.11.2-1
free implementation of the OpenGL API -- GLX runtime
---
> ii libgl1-mesa-dev 7.10-4 A
> free implementation of the OpenGL API -- GLX development files
> ii libgl1-mesa-dri 7.10-4 A
> free implementation of the OpenGL API -- DRI modules
> ii libgl1-mesa-glx 7.10-4 A
> free implementation of the OpenGL API -- GLX runtime
1039,1040c1043
< ii libglapi-mesa 7.11.2-1
free implementation of the GL API -- shared library
< ii libglew1.6 1.6.0-4
OpenGL Extension Wrangler - runtime environment
---
> ii libglew1.5 1.5.8-1 The
> OpenGL Extension Wrangler - runtime environment
1049,1050c1052,1053
< ii libglu1-mesa 7.11.2-1
Mesa OpenGL utility library (GLU)
< ii libglu1-mesa-dev 7.11.2-1
Mesa OpenGL utility library -- development files
---
> ii libglu1-mesa 7.10-4 The
> OpenGL utility library (GLU)
> ii libglu1-mesa-dev 7.10-4 The
> OpenGL utility library -- development files
1259a1263
> ii libkms1 2.4.23-3
> Userspace interface to kernel DRM buffer management
1472c1476
< ii libpcsclite1 1.8.1-5
Middleware to access a smart card using PC/SC (library)
---
> ii libpcsclite1 1.7.4-2
> Middleware to access a smart card using PC/SC (library)
1798,1803c1802,1805
< ii libx11-6 2:1.4.4-4 X11
client-side library
< ii libx11-data 2:1.4.4-4 X11
client-side library
< ii libx11-dev 2:1.4.4-4 X11
client-side library (development headers)
< ii libx11-doc 2:1.4.4-4 X11
client-side library (development documentation)
< ii libx11-protocol-perl 0.56-2
Perl module for the X Window System Protocol, version 11
< ii libx11-xcb1 2:1.4.4-4
Xlib/XCB interface library
---
> ii libx11-6 2:1.4.1-5 X11
> client-side library
> ii libx11-data 2:1.4.1-5 X11
> client-side library
> ii libx11-dev 2:1.4.1-5 X11
> client-side library (development headers)
> ii libx11-xcb1 2:1.4.1-5
> Xlib/XCB interface library
1811a1814
> ii libxcb-aux0 0.3.6-1
> utility libraries for X C Binding -- aux
1820a1824
> ii libxcb-xfixes0 1.7-2 X C
> Binding, xfixes extension
1898a1903
> ii libxxf86vm-dev 1:1.1.1-2 X11
> XFree86 video mode extension library (development headers)
2036,2037c2041,2042
< ii mesa-common-dev 7.11.2-1
Developer documentation for Mesa
< ii mesa-utils 8.0.1-2+b1
Miscellaneous Mesa GL utilities
---
> ii mesa-common-dev 7.10-4
> Developer documentation for Mesa
> ii mesa-utils 8.0.1-2
> Miscellaneous Mesa GL utilities
2119c2124
< ii pcscd 1.8.1-5
Middleware to access a smart card using PC/SC (daemon side)
---
> ii pcscd 1.7.4-2
> Middleware to access a smart card using PC/SC (daemon side)
2485a2491
> ii x11proto-dri2-dev 2.3-1 X11
> DRI2 extension wire protocol
2486a2493
> ii x11proto-gl-dev 1.4.12-1 X11
> OpenGL extension wire protocol
2491a2499
> ii x11proto-xf86vidmode-dev 2.3.1-2 X11
> Video Mode extension wire protocol
2513c2521
< ii xkb-data 2.3-2 X
Keyboard Extension (XKB) configuration data
---
> ii xkb-data 1.8-2 X
> Keyboard Extension (XKB) configuration data
2520c2528
< ii xorg 1:7.6+10
X.Org X Window System
---
> ii xorg 1:7.6+4
> X.Org X Window System
2523c2531
< ii xorg-sgml-doctools 1:1.10-1
Common tools for building X.Org SGML documentation
---
> ii xorg-sgml-doctools 1:1.6-1
> Common tools for building X.Org SGML documentation
2531,2570c2539,2578
< ii xserver-xephyr 2:1.11.2.902-1
nested X server
< ii xserver-xorg 1:7.6+10
X.Org X server
< ii xserver-xorg-core 2:1.11.2.902-1
Xorg X server - core server
< ii xserver-xorg-input-all 1:7.6+10
X.Org X server -- input driver metapackage
< ii xserver-xorg-input-evdev 1:2.6.0-2+b2
X.Org X server -- evdev input driver
< ii xserver-xorg-input-kbd 1:1.6.0-3+b1
X.Org X server -- keyboard input driver
< ii xserver-xorg-input-mouse 1:1.7.1-1+b1
X.Org X server -- mouse input driver
< ii xserver-xorg-input-synaptics 1.5.0-2
Synaptics TouchPad driver for X.Org server
< ii xserver-xorg-input-wacom 0.12.0-1
X.Org X server -- Wacom input driver
< ii xserver-xorg-video-all 1:7.6+10
X.Org X server -- output driver metapackage
< ii xserver-xorg-video-apm 1:1.2.3-2+b2
X.Org X server -- APM display driver
< ii xserver-xorg-video-ark 1:0.7.3-2+b2
X.Org X server -- ark display driver
< ii xserver-xorg-video-ati 1:6.14.3-2
X.Org X server -- AMD/ATI display driver wrapper
< ii xserver-xorg-video-chips 1:1.2.4-1+b2
X.Org X server -- Chips display driver
< ii xserver-xorg-video-cirrus 1:1.3.2-4+b2
X.Org X server -- Cirrus display driver
< ii xserver-xorg-video-dummy 1:0.3.5-1
X.Org X server -- dummy display driver
< ii xserver-xorg-video-fbdev 1:0.4.2-4+b2
X.Org X server -- fbdev display driver
< ii xserver-xorg-video-glint 1:1.2.6-1
X.Org X server -- Glint display driver
< ii xserver-xorg-video-i128 1:1.3.4-2+b2
X.Org X server -- i128 display driver
< ii xserver-xorg-video-intel 2:2.17.0-1
X.Org X server -- Intel i8xx, i9xx display driver
< ii xserver-xorg-video-mach64 6.9.0-1+b1
X.Org X server -- ATI Mach64 display driver
< ii xserver-xorg-video-mga 1:1.4.13.dfsg-4
X.Org X server -- MGA display driver
< ii xserver-xorg-video-neomagic 1:1.2.5-2+b2
X.Org X server -- Neomagic display driver
< ii xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1
X.Org X server -- Nouveau display driver
< ii xserver-xorg-video-openchrome 1:0.2.904+svn920-1+b1
X.Org X server -- VIA display driver
< ii xserver-xorg-video-r128 6.8.1-5+b2
X.Org X server -- ATI r128 display driver
< ii xserver-xorg-video-radeon 1:6.14.3-2
X.Org X server -- AMD/ATI Radeon display driver
< ii xserver-xorg-video-rendition 1:4.2.4-2+b2
X.Org X server -- Rendition display driver
< ii xserver-xorg-video-s3 1:0.6.3-4+b2
X.Org X server -- legacy S3 display driver
< ii xserver-xorg-video-s3virge 1:1.10.4-4+b2
X.Org X server -- S3 ViRGE display driver
< ii xserver-xorg-video-savage 1:2.3.3-1
X.Org X server -- Savage display driver
< ii xserver-xorg-video-siliconmotion 1:1.7.5-1+b2
X.Org X server -- SiliconMotion display driver
< ii xserver-xorg-video-sis 1:0.10.3-3+b2
X.Org X server -- SiS display driver
< ii xserver-xorg-video-sisusb 1:0.9.4-2+b2
X.Org X server -- SiS USB display driver
< ii xserver-xorg-video-tdfx 1:1.4.3-4+b2
X.Org X server -- tdfx display driver
< ii xserver-xorg-video-trident 1:1.3.4-2+b2
X.Org X server -- Trident display driver
< ii xserver-xorg-video-tseng 1:1.2.4-2+b2
X.Org X server -- Tseng display driver
< ii xserver-xorg-video-vesa 1:2.3.0-7+b1
X.Org X server -- VESA display driver
< ii xserver-xorg-video-vmware 1:11.0.99.901-1
X.Org X server -- VMware display driver
< ii xserver-xorg-video-voodoo 1:1.2.4-2+b2
X.Org X server -- Voodoo display driver
---
> ii xserver-xephyr 2:1.9.4.901-1
> nested X server
> ii xserver-xorg 1:7.6+4 the
> X.Org X server
> ii xserver-xorg-core 2:1.9.4.901-1
> Xorg X server - core server
> ii xserver-xorg-input-all 1:7.6+4 the
> X.Org X server -- input driver metapackage
> ii xserver-xorg-input-evdev 1:2.6.0-2
> X.Org X server -- evdev input driver
> ii xserver-xorg-input-kbd 1:1.6.0-1
> X.Org X server -- keyboard input driver
> ii xserver-xorg-input-mouse 1:1.6.99.901-1
> X.Org X server -- mouse input driver
> ii xserver-xorg-input-synaptics 1.4.0-1
> Synaptics TouchPad driver for X.Org server
> ii xserver-xorg-input-wacom 0.10.10+20110203-1
> X.Org X server -- Wacom input driver
> ii xserver-xorg-video-all 1:7.6+4 the
> X.Org X server -- output driver metapackage
> ii xserver-xorg-video-apm 1:1.2.3-2
> X.Org X server -- APM display driver
> ii xserver-xorg-video-ark 1:0.7.3-2
> X.Org X server -- ark display driver
> ii xserver-xorg-video-ati 1:6.14.0-1
> X.Org X server -- AMD/ATI display driver wrapper
> ii xserver-xorg-video-chips 1:1.2.4-1
> X.Org X server -- Chips display driver
> ii xserver-xorg-video-cirrus 1:1.3.2-4
> X.Org X server -- Cirrus display driver
> ii xserver-xorg-video-dummy 1:0.3.4-2
> X.Org X server -- dummy display driver
> ii xserver-xorg-video-fbdev 1:0.4.2-4
> X.Org X server -- fbdev display driver
> ii xserver-xorg-video-glint 1:1.2.5-2
> X.Org X server -- Glint display driver
> ii xserver-xorg-video-i128 1:1.3.4-2
> X.Org X server -- i128 display driver
> ii xserver-xorg-video-intel 2:2.14.0-4
> X.Org X server -- Intel i8xx, i9xx display driver
> ii xserver-xorg-video-mach64 6.8.2-5
> X.Org X server -- ATI Mach64 display driver
> ii xserver-xorg-video-mga 1:1.4.13.dfsg-3
> X.Org X server -- MGA display driver
> ii xserver-xorg-video-neomagic 1:1.2.5-2
> X.Org X server -- Neomagic display driver
> ii xserver-xorg-video-nouveau 1:0.0.16+git20101210+8bb8231-2
> X.Org X server -- Nouveau display driver (experimental)
> ii xserver-xorg-video-openchrome 1:0.2.904+svn916-1
> X.Org X server -- VIA display driver
> ii xserver-xorg-video-r128 6.8.1-5
> X.Org X server -- ATI r128 display driver
> ii xserver-xorg-video-radeon 1:6.14.0-1
> X.Org X server -- AMD/ATI Radeon display driver
> ii xserver-xorg-video-rendition 1:4.2.4-2
> X.Org X server -- Rendition display driver
> ii xserver-xorg-video-s3 1:0.6.3-4
> X.Org X server -- legacy S3 display driver
> ii xserver-xorg-video-s3virge 1:1.10.4-4
> X.Org X server -- S3 ViRGE display driver
> ii xserver-xorg-video-savage 1:2.3.2-3
> X.Org X server -- Savage display driver
> ii xserver-xorg-video-siliconmotion 1:1.7.4-3
> X.Org X server -- SiliconMotion display driver
> ii xserver-xorg-video-sis 1:0.10.3-3
> X.Org X server -- SiS display driver
> ii xserver-xorg-video-sisusb 1:0.9.4-2
> X.Org X server -- SiS USB display driver
> ii xserver-xorg-video-tdfx 1:1.4.3-4
> X.Org X server -- tdfx display driver
> ii xserver-xorg-video-trident 1:1.3.4-2
> X.Org X server -- Trident display driver
> ii xserver-xorg-video-tseng 1:1.2.4-2
> X.Org X server -- Tseng display driver
> ii xserver-xorg-video-vesa 1:2.3.0-5
> X.Org X server -- VESA display driver
> ii xserver-xorg-video-vmware 1:11.0.3-2
> X.Org X server -- VMware display driver
> ii xserver-xorg-video-voodoo 1:1.2.4-2
> X.Org X server -- Voodoo display driver
2580c2588
< ii xvfb 2:1.11.2.902-1
Virtual Framebuffer 'fake' X server
---
> ii xvfb 2:1.11.1-1
> Virtual Framebuffer 'fake' X server
